mirror of
https://github.com/fmtlib/fmt.git
synced 2024-11-19 20:18:49 +00:00
3291 lines
110 KiB
Markdown
3291 lines
110 KiB
Markdown
# 7.1.3 - 2020-11-24
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- Fixed handling of buffer boundaries in `format_to_n`
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(https://github.com/fmtlib/fmt/issues/1996,
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https://github.com/fmtlib/fmt/issues/2029).
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- Fixed linkage errors when linking with a shared library
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(https://github.com/fmtlib/fmt/issues/2011).
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- Reintroduced ostream support to range formatters
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(https://github.com/fmtlib/fmt/issues/2014).
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- Worked around an issue with mixing std versions in gcc
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(https://github.com/fmtlib/fmt/issues/2017).
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# 7.1.2 - 2020-11-04
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- Fixed floating point formatting with large precision
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(https://github.com/fmtlib/fmt/issues/1976).
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# 7.1.1 - 2020-11-01
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- Fixed ABI compatibility with 7.0.x
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(https://github.com/fmtlib/fmt/issues/1961).
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- Added the `FMT_ARM_ABI_COMPATIBILITY` macro to work around ABI
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incompatibility between GCC and Clang on ARM
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(https://github.com/fmtlib/fmt/issues/1919).
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- Worked around a SFINAE bug in GCC 8
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(https://github.com/fmtlib/fmt/issues/1957).
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- Fixed linkage errors when building with GCC\'s LTO
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(https://github.com/fmtlib/fmt/issues/1955).
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- Fixed a compilation error when building without `__builtin_clz` or
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equivalent (https://github.com/fmtlib/fmt/pull/1968).
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Thanks @tohammer.
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- Fixed a sign conversion warning
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(https://github.com/fmtlib/fmt/pull/1964). Thanks @OptoCloud.
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# 7.1.0 - 2020-10-25
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- Switched from
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[Grisu3](https://www.cs.tufts.edu/~nr/cs257/archive/florian-loitsch/printf.pdf)
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to [Dragonbox](https://github.com/jk-jeon/dragonbox) for the default
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floating-point formatting which gives the shortest decimal
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representation with round-trip guarantee and correct rounding
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(https://github.com/fmtlib/fmt/pull/1882,
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https://github.com/fmtlib/fmt/pull/1887,
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https://github.com/fmtlib/fmt/pull/1894). This makes {fmt}
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up to 20-30x faster than common implementations of
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`std::ostringstream` and `sprintf` on
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[dtoa-benchmark](https://github.com/fmtlib/dtoa-benchmark) and
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faster than double-conversion and Ryū:
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It is possible to get even better performance at the cost of larger
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binary size by compiling with the `FMT_USE_FULL_CACHE_DRAGONBOX`
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macro set to 1.
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Thanks @jk-jeon.
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- Added an experimental unsynchronized file output API which, together
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with [format string
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compilation](https://fmt.dev/latest/api.html#compile-api), can give
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[5-9 times speed up compared to
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fprintf](https://www.zverovich.net/2020/08/04/optimal-file-buffer-size.html)
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on common platforms ([godbolt](https://godbolt.org/z/nsTcG8)):
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```c++
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#include <fmt/os.h>
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int main() {
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auto f = fmt::output_file("guide");
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f.print("The answer is {}.", 42);
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}
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```
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- Added a formatter for `std::chrono::time_point<system_clock>`
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(https://github.com/fmtlib/fmt/issues/1819,
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https://github.com/fmtlib/fmt/pull/1837). For example
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([godbolt](https://godbolt.org/z/c4M6fh)):
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```c++
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#include <fmt/chrono.h>
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int main() {
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auto now = std::chrono::system_clock::now();
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fmt::print("The time is {:%H:%M:%S}.\n", now);
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}
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```
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Thanks @adamburgess.
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- Added support for ranges with non-const `begin`/`end` to `fmt::join`
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(https://github.com/fmtlib/fmt/issues/1784,
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https://github.com/fmtlib/fmt/pull/1786). For example
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([godbolt](https://godbolt.org/z/jP63Tv)):
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```c++
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#include <fmt/ranges.h>
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#include <range/v3/view/filter.hpp>
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int main() {
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using std::literals::string_literals::operator""s;
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auto strs = std::array{"a"s, "bb"s, "ccc"s};
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auto range = strs | ranges::views::filter(
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[] (const std::string &x) { return x.size() != 2; }
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);
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fmt::print("{}\n", fmt::join(range, ""));
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}
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```
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prints \"accc\".
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Thanks @tonyelewis.
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- Added a `memory_buffer::append` overload that takes a range
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(https://github.com/fmtlib/fmt/pull/1806). Thanks @BRevzin.
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- Improved handling of single code units in `FMT_COMPILE`. For
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example:
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```c++
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#include <fmt/compile.h>
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char* f(char* buf) {
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return fmt::format_to(buf, FMT_COMPILE("x{}"), 42);
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}
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```
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compiles to just ([godbolt](https://godbolt.org/z/5vncz3)):
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```asm
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_Z1fPc:
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movb $120, (%rdi)
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xorl %edx, %edx
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cmpl $42, _ZN3fmt2v76detail10basic_dataIvE23zero_or_powers_of_10_32E+8(%rip)
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movl $3, %eax
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seta %dl
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subl %edx, %eax
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movzwl _ZN3fmt2v76detail10basic_dataIvE6digitsE+84(%rip), %edx
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cltq
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addq %rdi, %rax
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movw %dx, -2(%rax)
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ret
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```
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Here a single `mov` instruction writes `'x'` (`$120`) to the output
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buffer.
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- Added dynamic width support to format string compilation
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(https://github.com/fmtlib/fmt/issues/1809).
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- Improved error reporting for unformattable types: now you\'ll get
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the type name directly in the error message instead of the note:
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```c++
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#include <fmt/core.h>
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struct how_about_no {};
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int main() {
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fmt::print("{}", how_about_no());
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}
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```
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Error ([godbolt](https://godbolt.org/z/GoxM4e)):
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`fmt/core.h:1438:3: error: static_assert failed due to requirement 'fmt::v7::formattable<how_about_no>()' "Cannot format an argument. To make type T formattable provide a formatter<T> specialization: https://fmt.dev/latest/api.html#udt" ...`
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- Added the
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[make_args_checked](https://fmt.dev/7.1.0/api.html#argument-lists)
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function template that allows you to write formatting functions with
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compile-time format string checks and avoid binary code bloat
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([godbolt](https://godbolt.org/z/PEf9qr)):
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```c++
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void vlog(const char* file, int line, fmt::string_view format,
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fmt::format_args args) {
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fmt::print("{}: {}: ", file, line);
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fmt::vprint(format, args);
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}
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template <typename S, typename... Args>
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void log(const char* file, int line, const S& format, Args&&... args) {
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vlog(file, line, format,
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fmt::make_args_checked<Args...>(format, args...));
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}
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#define MY_LOG(format, ...) \
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log(__FILE__, __LINE__, FMT_STRING(format), __VA_ARGS__)
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MY_LOG("invalid squishiness: {}", 42);
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```
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- Replaced `snprintf` fallback with a faster internal IEEE 754 `float`
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and `double` formatter for arbitrary precision. For example
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([godbolt](https://godbolt.org/z/dPhWvj)):
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```c++
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#include <fmt/core.h>
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int main() {
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fmt::print("{:.500}\n", 4.9406564584124654E-324);
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}
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```
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prints
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`4.9406564584124654417656879286822137236505980261432476442558568250067550727020875186529983636163599237979656469544571773092665671035593979639877479601078187812630071319031140452784581716784898210368871863605699873072305000638740915356498438731247339727316961514003171538539807412623856559117102665855668676818703956031062493194527159149245532930545654440112748012970999954193198940908041656332452475714786901472678015935523861155013480352649347201937902681071074917033322268447533357208324319360923829e-324`.
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- Made `format_to_n` and `formatted_size` part of the [core
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API](https://fmt.dev/latest/api.html#core-api)
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([godbolt](https://godbolt.org/z/sPjY1K)):
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```c++
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#include <fmt/core.h>
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int main() {
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char buffer[10];
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auto result = fmt::format_to_n(buffer, sizeof(buffer), "{}", 42);
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}
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```
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- Added `fmt::format_to_n` overload with format string compilation
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(https://github.com/fmtlib/fmt/issues/1764,
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https://github.com/fmtlib/fmt/pull/1767,
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https://github.com/fmtlib/fmt/pull/1869). For example
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([godbolt](https://godbolt.org/z/93h86q)):
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|
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```c++
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#include <fmt/compile.h>
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int main() {
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char buffer[8];
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fmt::format_to_n(buffer, sizeof(buffer), FMT_COMPILE("{}"), 42);
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}
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```
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Thanks @Kurkin and @alexezeder.
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- Added `fmt::format_to` overload that take `text_style`
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(https://github.com/fmtlib/fmt/issues/1593,
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https://github.com/fmtlib/fmt/issues/1842,
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https://github.com/fmtlib/fmt/pull/1843). For example
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([godbolt](https://godbolt.org/z/91153r)):
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|
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```c++
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#include <fmt/color.h>
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int main() {
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std::string out;
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fmt::format_to(std::back_inserter(out),
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fmt::emphasis::bold | fg(fmt::color::red),
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"The answer is {}.", 42);
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}
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```
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Thanks @Naios.
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- Made the `'#'` specifier emit trailing zeros in addition to the
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decimal point (https://github.com/fmtlib/fmt/issues/1797).
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For example ([godbolt](https://godbolt.org/z/bhdcW9)):
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```c++
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#include <fmt/core.h>
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int main() {
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fmt::print("{:#.2g}", 0.5);
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}
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```
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prints `0.50`.
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- Changed the default floating point format to not include `.0` for
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consistency with `std::format` and `std::to_chars`
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(https://github.com/fmtlib/fmt/issues/1893,
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https://github.com/fmtlib/fmt/issues/1943). It is possible
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to get the decimal point and trailing zero with the `#` specifier.
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- Fixed an issue with floating-point formatting that could result in
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addition of a non-significant trailing zero in rare cases e.g.
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`1.00e-34` instead of `1.0e-34`
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(https://github.com/fmtlib/fmt/issues/1873,
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https://github.com/fmtlib/fmt/issues/1917).
|
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|
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- Made `fmt::to_string` fallback on `ostream` insertion operator if
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the `formatter` specialization is not provided
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(https://github.com/fmtlib/fmt/issues/1815,
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https://github.com/fmtlib/fmt/pull/1829). Thanks @alexezeder.
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- Added support for the append mode to the experimental file API and
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improved `fcntl.h` detection.
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(https://github.com/fmtlib/fmt/pull/1847,
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https://github.com/fmtlib/fmt/pull/1848). Thanks @t-wiser.
|
||
|
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- Fixed handling of types that have both an implicit conversion
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operator and an overloaded `ostream` insertion operator
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(https://github.com/fmtlib/fmt/issues/1766).
|
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|
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- Fixed a slicing issue in an internal iterator type
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(https://github.com/fmtlib/fmt/pull/1822). Thanks @BRevzin.
|
||
|
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- Fixed an issue in locale-specific integer formatting
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(https://github.com/fmtlib/fmt/issues/1927).
|
||
|
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- Fixed handling of exotic code unit types
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(https://github.com/fmtlib/fmt/issues/1870,
|
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https://github.com/fmtlib/fmt/issues/1932).
|
||
|
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- Improved `FMT_ALWAYS_INLINE`
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(https://github.com/fmtlib/fmt/pull/1878). Thanks @jk-jeon.
|
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|
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- Removed dependency on `windows.h`
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(https://github.com/fmtlib/fmt/pull/1900). Thanks @bernd5.
|
||
|
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- Optimized counting of decimal digits on MSVC
|
||
(https://github.com/fmtlib/fmt/pull/1890). Thanks @mwinterb.
|
||
|
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- Improved documentation
|
||
(https://github.com/fmtlib/fmt/issues/1772,
|
||
https://github.com/fmtlib/fmt/pull/1775,
|
||
https://github.com/fmtlib/fmt/pull/1792,
|
||
https://github.com/fmtlib/fmt/pull/1838,
|
||
https://github.com/fmtlib/fmt/pull/1888,
|
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https://github.com/fmtlib/fmt/pull/1918,
|
||
https://github.com/fmtlib/fmt/pull/1939).
|
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Thanks @leolchat, @pepsiman, @Klaim, @ravijanjam, @francesco-st and @udnaan.
|
||
|
||
- Added the `FMT_REDUCE_INT_INSTANTIATIONS` CMake option that reduces
|
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the binary code size at the cost of some integer formatting
|
||
performance. This can be useful for extremely memory-constrained
|
||
embedded systems
|
||
(https://github.com/fmtlib/fmt/issues/1778,
|
||
https://github.com/fmtlib/fmt/pull/1781). Thanks @kammce.
|
||
|
||
- Added the `FMT_USE_INLINE_NAMESPACES` macro to control usage of
|
||
inline namespaces
|
||
(https://github.com/fmtlib/fmt/pull/1945). Thanks @darklukee.
|
||
|
||
- Improved build configuration
|
||
(https://github.com/fmtlib/fmt/pull/1760,
|
||
https://github.com/fmtlib/fmt/pull/1770,
|
||
https://github.com/fmtlib/fmt/issues/1779,
|
||
https://github.com/fmtlib/fmt/pull/1783,
|
||
https://github.com/fmtlib/fmt/pull/1823).
|
||
Thanks @dvetutnev, @xvitaly, @tambry, @medithe and @martinwuehrer.
|
||
|
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- Fixed various warnings and compilation issues
|
||
(https://github.com/fmtlib/fmt/pull/1790,
|
||
https://github.com/fmtlib/fmt/pull/1802,
|
||
https://github.com/fmtlib/fmt/pull/1808,
|
||
https://github.com/fmtlib/fmt/issues/1810,
|
||
https://github.com/fmtlib/fmt/issues/1811,
|
||
https://github.com/fmtlib/fmt/pull/1812,
|
||
https://github.com/fmtlib/fmt/pull/1814,
|
||
https://github.com/fmtlib/fmt/pull/1816,
|
||
https://github.com/fmtlib/fmt/pull/1817,
|
||
https://github.com/fmtlib/fmt/pull/1818,
|
||
https://github.com/fmtlib/fmt/issues/1825,
|
||
https://github.com/fmtlib/fmt/pull/1836,
|
||
https://github.com/fmtlib/fmt/pull/1855,
|
||
https://github.com/fmtlib/fmt/pull/1856,
|
||
https://github.com/fmtlib/fmt/pull/1860,
|
||
https://github.com/fmtlib/fmt/pull/1877,
|
||
https://github.com/fmtlib/fmt/pull/1879,
|
||
https://github.com/fmtlib/fmt/pull/1880,
|
||
https://github.com/fmtlib/fmt/issues/1896,
|
||
https://github.com/fmtlib/fmt/pull/1897,
|
||
https://github.com/fmtlib/fmt/pull/1898,
|
||
https://github.com/fmtlib/fmt/issues/1904,
|
||
https://github.com/fmtlib/fmt/pull/1908,
|
||
https://github.com/fmtlib/fmt/issues/1911,
|
||
https://github.com/fmtlib/fmt/issues/1912,
|
||
https://github.com/fmtlib/fmt/issues/1928,
|
||
https://github.com/fmtlib/fmt/pull/1929,
|
||
https://github.com/fmtlib/fmt/issues/1935,
|
||
https://github.com/fmtlib/fmt/pull/1937,
|
||
https://github.com/fmtlib/fmt/pull/1942,
|
||
https://github.com/fmtlib/fmt/issues/1949).
|
||
Thanks @TheQwertiest, @medithe, @martinwuehrer, @n16h7hunt3r, @Othereum,
|
||
@gsjaardema, @AlexanderLanin, @gcerretani, @chronoxor, @noizefloor,
|
||
@akohlmey, @jk-jeon, @rimathia, @rglarix, @moiwi, @heckad, @MarcDirven.
|
||
@BartSiwek and @darklukee.
|
||
|
||
# 7.0.3 - 2020-08-06
|
||
|
||
- Worked around broken `numeric_limits` for 128-bit integers
|
||
(https://github.com/fmtlib/fmt/issues/1787).
|
||
- Added error reporting on missing named arguments
|
||
(https://github.com/fmtlib/fmt/issues/1796).
|
||
- Stopped using 128-bit integers with clang-cl
|
||
(https://github.com/fmtlib/fmt/pull/1800). Thanks @Kingcom.
|
||
- Fixed issues in locale-specific integer formatting
|
||
(https://github.com/fmtlib/fmt/issues/1782,
|
||
https://github.com/fmtlib/fmt/issues/1801).
|
||
|
||
# 7.0.2 - 2020-07-29
|
||
|
||
- Worked around broken `numeric_limits` for 128-bit integers
|
||
(https://github.com/fmtlib/fmt/issues/1725).
|
||
- Fixed compatibility with CMake 3.4
|
||
(https://github.com/fmtlib/fmt/issues/1779).
|
||
- Fixed handling of digit separators in locale-specific formatting
|
||
(https://github.com/fmtlib/fmt/issues/1782).
|
||
|
||
# 7.0.1 - 2020-07-07
|
||
|
||
- Updated the inline version namespace name.
|
||
- Worked around a gcc bug in mangling of alias templates
|
||
(https://github.com/fmtlib/fmt/issues/1753).
|
||
- Fixed a linkage error on Windows
|
||
(https://github.com/fmtlib/fmt/issues/1757). Thanks @Kurkin.
|
||
- Fixed minor issues with the documentation.
|
||
|
||
# 7.0.0 - 2020-07-05
|
||
|
||
- Reduced the library size. For example, on macOS a stripped test
|
||
binary statically linked with {fmt} [shrank from \~368k to less than
|
||
100k](http://www.zverovich.net/2020/05/21/reducing-library-size.html).
|
||
|
||
- Added a simpler and more efficient [format string compilation
|
||
API](https://fmt.dev/7.0.0/api.html#compile-api):
|
||
|
||
```c++
|
||
#include <fmt/compile.h>
|
||
|
||
// Converts 42 into std::string using the most efficient method and no
|
||
// runtime format string processing.
|
||
std::string s = fmt::format(FMT_COMPILE("{}"), 42);
|
||
```
|
||
|
||
The old `fmt::compile` API is now deprecated.
|
||
|
||
- Optimized integer formatting: `format_to` with format string
|
||
compilation and a stack-allocated buffer is now [faster than
|
||
to_chars on both libc++ and
|
||
libstdc++](http://www.zverovich.net/2020/06/13/fast-int-to-string-revisited.html).
|
||
|
||
- Optimized handling of small format strings. For example,
|
||
|
||
```c++
|
||
fmt::format("Result: {}: ({},{},{},{})", str1, str2, str3, str4, str5)
|
||
```
|
||
|
||
is now \~40% faster
|
||
(https://github.com/fmtlib/fmt/issues/1685).
|
||
|
||
- Applied extern templates to improve compile times when using the
|
||
core API and `fmt/format.h`
|
||
(https://github.com/fmtlib/fmt/issues/1452). For example,
|
||
on macOS with clang the compile time of a test translation unit
|
||
dropped from 2.3s to 0.3s with `-O2` and from 0.6s to 0.3s with the
|
||
default settings (`-O0`).
|
||
|
||
Before (`-O2`):
|
||
|
||
% time c++ -c test.cc -I include -std=c++17 -O2
|
||
c++ -c test.cc -I include -std=c++17 -O2 2.22s user 0.08s system 99% cpu 2.311 total
|
||
|
||
After (`-O2`):
|
||
|
||
% time c++ -c test.cc -I include -std=c++17 -O2
|
||
c++ -c test.cc -I include -std=c++17 -O2 0.26s user 0.04s system 98% cpu 0.303 total
|
||
|
||
Before (default):
|
||
|
||
% time c++ -c test.cc -I include -std=c++17
|
||
c++ -c test.cc -I include -std=c++17 0.53s user 0.06s system 98% cpu 0.601 total
|
||
|
||
After (default):
|
||
|
||
% time c++ -c test.cc -I include -std=c++17
|
||
c++ -c test.cc -I include -std=c++17 0.24s user 0.06s system 98% cpu 0.301 total
|
||
|
||
It is still recommended to use `fmt/core.h` instead of
|
||
`fmt/format.h` but the compile time difference is now smaller.
|
||
Thanks @alex3d for the suggestion.
|
||
|
||
- Named arguments are now stored on stack (no dynamic memory
|
||
allocations) and the compiled code is more compact and efficient.
|
||
For example
|
||
|
||
```c++
|
||
#include <fmt/core.h>
|
||
|
||
int main() {
|
||
fmt::print("The answer is {answer}\n", fmt::arg("answer", 42));
|
||
}
|
||
```
|
||
|
||
compiles to just ([godbolt](https://godbolt.org/z/NcfEp_))
|
||
|
||
```asm
|
||
.LC0:
|
||
.string "answer"
|
||
.LC1:
|
||
.string "The answer is {answer}\n"
|
||
main:
|
||
sub rsp, 56
|
||
mov edi, OFFSET FLAT:.LC1
|
||
mov esi, 23
|
||
movabs rdx, 4611686018427387905
|
||
lea rax, [rsp+32]
|
||
lea rcx, [rsp+16]
|
||
mov QWORD PTR [rsp+8], 1
|
||
mov QWORD PTR [rsp], rax
|
||
mov DWORD PTR [rsp+16], 42
|
||
mov QWORD PTR [rsp+32], OFFSET FLAT:.LC0
|
||
mov DWORD PTR [rsp+40], 0
|
||
call fmt::v6::vprint(fmt::v6::basic_string_view<char>,
|
||
fmt::v6::format_args)
|
||
xor eax, eax
|
||
add rsp, 56
|
||
ret
|
||
|
||
.L.str.1:
|
||
.asciz "answer"
|
||
```
|
||
|
||
- Implemented compile-time checks for dynamic width and precision
|
||
(https://github.com/fmtlib/fmt/issues/1614):
|
||
|
||
```c++
|
||
#include <fmt/format.h>
|
||
|
||
int main() {
|
||
fmt::print(FMT_STRING("{0:{1}}"), 42);
|
||
}
|
||
```
|
||
|
||
now gives a compilation error because argument 1 doesn\'t exist:
|
||
|
||
In file included from test.cc:1:
|
||
include/fmt/format.h:2726:27: error: constexpr variable 'invalid_format' must be
|
||
initialized by a constant expression
|
||
FMT_CONSTEXPR_DECL bool invalid_format =
|
||
^
|
||
...
|
||
include/fmt/core.h:569:26: note: in call to
|
||
'&checker(s, {}).context_->on_error(&"argument not found"[0])'
|
||
if (id >= num_args_) on_error("argument not found");
|
||
^
|
||
|
||
- Added sentinel support to `fmt::join`
|
||
(https://github.com/fmtlib/fmt/pull/1689)
|
||
|
||
```c++
|
||
struct zstring_sentinel {};
|
||
bool operator==(const char* p, zstring_sentinel) { return *p == '\0'; }
|
||
bool operator!=(const char* p, zstring_sentinel) { return *p != '\0'; }
|
||
|
||
struct zstring {
|
||
const char* p;
|
||
const char* begin() const { return p; }
|
||
zstring_sentinel end() const { return {}; }
|
||
};
|
||
|
||
auto s = fmt::format("{}", fmt::join(zstring{"hello"}, "_"));
|
||
// s == "h_e_l_l_o"
|
||
```
|
||
|
||
Thanks @BRevzin.
|
||
|
||
- Added support for named arguments, `clear` and `reserve` to
|
||
`dynamic_format_arg_store`
|
||
(https://github.com/fmtlib/fmt/issues/1655,
|
||
https://github.com/fmtlib/fmt/pull/1663,
|
||
https://github.com/fmtlib/fmt/pull/1674,
|
||
https://github.com/fmtlib/fmt/pull/1677). Thanks @vsolontsov-ll.
|
||
|
||
- Added support for the `'c'` format specifier to integral types for
|
||
compatibility with `std::format`
|
||
(https://github.com/fmtlib/fmt/issues/1652).
|
||
|
||
- Replaced the `'n'` format specifier with `'L'` for compatibility
|
||
with `std::format`
|
||
(https://github.com/fmtlib/fmt/issues/1624). The `'n'`
|
||
specifier can be enabled via the `FMT_DEPRECATED_N_SPECIFIER` macro.
|
||
|
||
- The `'='` format specifier is now disabled by default for
|
||
compatibility with `std::format`. It can be enabled via the
|
||
`FMT_DEPRECATED_NUMERIC_ALIGN` macro.
|
||
|
||
- Removed the following deprecated APIs:
|
||
|
||
- `FMT_STRING_ALIAS` and `fmt` macros - replaced by `FMT_STRING`
|
||
- `fmt::basic_string_view::char_type` - replaced by
|
||
`fmt::basic_string_view::value_type`
|
||
- `convert_to_int`
|
||
- `format_arg_store::types`
|
||
- `*parse_context` - replaced by `*format_parse_context`
|
||
- `FMT_DEPRECATED_INCLUDE_OS`
|
||
- `FMT_DEPRECATED_PERCENT` - incompatible with `std::format`
|
||
- `*writer` - replaced by compiled format API
|
||
|
||
- Renamed the `internal` namespace to `detail`
|
||
(https://github.com/fmtlib/fmt/issues/1538). The former is
|
||
still provided as an alias if the `FMT_USE_INTERNAL` macro is
|
||
defined.
|
||
|
||
- Improved compatibility between `fmt::printf` with the standard specs
|
||
(https://github.com/fmtlib/fmt/issues/1595,
|
||
https://github.com/fmtlib/fmt/pull/1682,
|
||
https://github.com/fmtlib/fmt/pull/1683,
|
||
https://github.com/fmtlib/fmt/pull/1687,
|
||
https://github.com/fmtlib/fmt/pull/1699). Thanks @rimathia.
|
||
|
||
- Fixed handling of `operator<<` overloads that use `copyfmt`
|
||
(https://github.com/fmtlib/fmt/issues/1666).
|
||
|
||
- Added the `FMT_OS` CMake option to control inclusion of OS-specific
|
||
APIs in the fmt target. This can be useful for embedded platforms
|
||
(https://github.com/fmtlib/fmt/issues/1654,
|
||
https://github.com/fmtlib/fmt/pull/1656). Thanks @kwesolowski.
|
||
|
||
- Replaced `FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION` with the
|
||
`FMT_FUZZ` macro to prevent interfering with fuzzing of projects
|
||
using {fmt} (https://github.com/fmtlib/fmt/pull/1650).
|
||
Thanks @asraa.
|
||
|
||
- Fixed compatibility with emscripten
|
||
(https://github.com/fmtlib/fmt/issues/1636,
|
||
https://github.com/fmtlib/fmt/pull/1637). Thanks @ArthurSonzogni.
|
||
|
||
- Improved documentation
|
||
(https://github.com/fmtlib/fmt/issues/704,
|
||
https://github.com/fmtlib/fmt/pull/1643,
|
||
https://github.com/fmtlib/fmt/pull/1660,
|
||
https://github.com/fmtlib/fmt/pull/1681,
|
||
https://github.com/fmtlib/fmt/pull/1691,
|
||
https://github.com/fmtlib/fmt/pull/1706,
|
||
https://github.com/fmtlib/fmt/pull/1714,
|
||
https://github.com/fmtlib/fmt/pull/1721,
|
||
https://github.com/fmtlib/fmt/pull/1739,
|
||
https://github.com/fmtlib/fmt/pull/1740,
|
||
https://github.com/fmtlib/fmt/pull/1741,
|
||
https://github.com/fmtlib/fmt/pull/1751).
|
||
Thanks @senior7515, @lsr0, @puetzk, @fpelliccioni, Alexey Kuzmenko, @jelly,
|
||
@claremacrae, @jiapengwen, @gsjaardema and @alexey-milovidov.
|
||
|
||
- Implemented various build configuration fixes and improvements
|
||
(https://github.com/fmtlib/fmt/pull/1603,
|
||
https://github.com/fmtlib/fmt/pull/1657,
|
||
https://github.com/fmtlib/fmt/pull/1702,
|
||
https://github.com/fmtlib/fmt/pull/1728).
|
||
Thanks @scramsby, @jtojnar, @orivej and @flagarde.
|
||
|
||
- Fixed various warnings and compilation issues
|
||
(https://github.com/fmtlib/fmt/pull/1616,
|
||
https://github.com/fmtlib/fmt/issues/1620,
|
||
https://github.com/fmtlib/fmt/issues/1622,
|
||
https://github.com/fmtlib/fmt/issues/1625,
|
||
https://github.com/fmtlib/fmt/pull/1627,
|
||
https://github.com/fmtlib/fmt/issues/1628,
|
||
https://github.com/fmtlib/fmt/pull/1629,
|
||
https://github.com/fmtlib/fmt/issues/1631,
|
||
https://github.com/fmtlib/fmt/pull/1633,
|
||
https://github.com/fmtlib/fmt/pull/1649,
|
||
https://github.com/fmtlib/fmt/issues/1658,
|
||
https://github.com/fmtlib/fmt/pull/1661,
|
||
https://github.com/fmtlib/fmt/pull/1667,
|
||
https://github.com/fmtlib/fmt/issues/1668,
|
||
https://github.com/fmtlib/fmt/pull/1669,
|
||
https://github.com/fmtlib/fmt/issues/1692,
|
||
https://github.com/fmtlib/fmt/pull/1696,
|
||
https://github.com/fmtlib/fmt/pull/1697,
|
||
https://github.com/fmtlib/fmt/issues/1707,
|
||
https://github.com/fmtlib/fmt/pull/1712,
|
||
https://github.com/fmtlib/fmt/pull/1716,
|
||
https://github.com/fmtlib/fmt/pull/1722,
|
||
https://github.com/fmtlib/fmt/issues/1724,
|
||
https://github.com/fmtlib/fmt/pull/1729,
|
||
https://github.com/fmtlib/fmt/pull/1738,
|
||
https://github.com/fmtlib/fmt/issues/1742,
|
||
https://github.com/fmtlib/fmt/issues/1743,
|
||
https://github.com/fmtlib/fmt/pull/1744,
|
||
https://github.com/fmtlib/fmt/issues/1747,
|
||
https://github.com/fmtlib/fmt/pull/1750).
|
||
Thanks @gsjaardema, @gabime, @johnor, @Kurkin, @invexed, @peterbell10,
|
||
@daixtrose, @petrutlucian94, @Neargye, @ambitslix, @gabime, @erthink,
|
||
@tohammer and @0x8000-0000.
|
||
|
||
# 6.2.1 - 2020-05-09
|
||
|
||
- Fixed ostream support in `sprintf`
|
||
(https://github.com/fmtlib/fmt/issues/1631).
|
||
- Fixed type detection when using implicit conversion to `string_view`
|
||
and ostream `operator<<` inconsistently
|
||
(https://github.com/fmtlib/fmt/issues/1662).
|
||
|
||
# 6.2.0 - 2020-04-05
|
||
|
||
- Improved error reporting when trying to format an object of a
|
||
non-formattable type:
|
||
|
||
```c++
|
||
fmt::format("{}", S());
|
||
```
|
||
|
||
now gives:
|
||
|
||
include/fmt/core.h:1015:5: error: static_assert failed due to requirement
|
||
'formattable' "Cannot format argument. To make type T formattable provide a
|
||
formatter<T> specialization:
|
||
https://fmt.dev/latest/api.html#formatting-user-defined-types"
|
||
static_assert(
|
||
^
|
||
...
|
||
note: in instantiation of function template specialization
|
||
'fmt::v6::format<char [3], S, char>' requested here
|
||
fmt::format("{}", S());
|
||
^
|
||
|
||
if `S` is not formattable.
|
||
|
||
- Reduced the library size by \~10%.
|
||
|
||
- Always print decimal point if `#` is specified
|
||
(https://github.com/fmtlib/fmt/issues/1476,
|
||
https://github.com/fmtlib/fmt/issues/1498):
|
||
|
||
```c++
|
||
fmt::print("{:#.0f}", 42.0);
|
||
```
|
||
|
||
now prints `42.`
|
||
|
||
- Implemented the `'L'` specifier for locale-specific numeric
|
||
formatting to improve compatibility with `std::format`. The `'n'`
|
||
specifier is now deprecated and will be removed in the next major
|
||
release.
|
||
|
||
- Moved OS-specific APIs such as `windows_error` from `fmt/format.h`
|
||
to `fmt/os.h`. You can define `FMT_DEPRECATED_INCLUDE_OS` to
|
||
automatically include `fmt/os.h` from `fmt/format.h` for
|
||
compatibility but this will be disabled in the next major release.
|
||
|
||
- Added precision overflow detection in floating-point formatting.
|
||
|
||
- Implemented detection of invalid use of `fmt::arg`.
|
||
|
||
- Used `type_identity` to block unnecessary template argument
|
||
deduction. Thanks Tim Song.
|
||
|
||
- Improved UTF-8 handling
|
||
(https://github.com/fmtlib/fmt/issues/1109):
|
||
|
||
```c++
|
||
fmt::print("┌{0:─^{2}}┐\n"
|
||
"│{1: ^{2}}│\n"
|
||
"└{0:─^{2}}┘\n", "", "Прывітанне, свет!", 21);
|
||
```
|
||
|
||
now prints:
|
||
|
||
┌─────────────────────┐
|
||
│ Прывітанне, свет! │
|
||
└─────────────────────┘
|
||
|
||
on systems that support Unicode.
|
||
|
||
- Added experimental dynamic argument storage
|
||
(https://github.com/fmtlib/fmt/issues/1170,
|
||
https://github.com/fmtlib/fmt/pull/1584):
|
||
|
||
```c++
|
||
fmt::dynamic_format_arg_store<fmt::format_context> store;
|
||
store.push_back("answer");
|
||
store.push_back(42);
|
||
fmt::vprint("The {} is {}.\n", store);
|
||
```
|
||
|
||
prints:
|
||
|
||
The answer is 42.
|
||
|
||
Thanks @vsolontsov-ll.
|
||
|
||
- Made `fmt::join` accept `initializer_list`
|
||
(https://github.com/fmtlib/fmt/pull/1591). Thanks @Rapotkinnik.
|
||
|
||
- Fixed handling of empty tuples
|
||
(https://github.com/fmtlib/fmt/issues/1588).
|
||
|
||
- Fixed handling of output iterators in `format_to_n`
|
||
(https://github.com/fmtlib/fmt/issues/1506).
|
||
|
||
- Fixed formatting of `std::chrono::duration` types to wide output
|
||
(https://github.com/fmtlib/fmt/pull/1533). Thanks @zeffy.
|
||
|
||
- Added const `begin` and `end` overload to buffers
|
||
(https://github.com/fmtlib/fmt/pull/1553). Thanks @dominicpoeschko.
|
||
|
||
- Added the ability to disable floating-point formatting via
|
||
`FMT_USE_FLOAT`, `FMT_USE_DOUBLE` and `FMT_USE_LONG_DOUBLE` macros
|
||
for extremely memory-constrained embedded system
|
||
(https://github.com/fmtlib/fmt/pull/1590). Thanks @albaguirre.
|
||
|
||
- Made `FMT_STRING` work with `constexpr` `string_view`
|
||
(https://github.com/fmtlib/fmt/pull/1589). Thanks @scramsby.
|
||
|
||
- Implemented a minor optimization in the format string parser
|
||
(https://github.com/fmtlib/fmt/pull/1560). Thanks @IkarusDeveloper.
|
||
|
||
- Improved attribute detection
|
||
(https://github.com/fmtlib/fmt/pull/1469,
|
||
https://github.com/fmtlib/fmt/pull/1475,
|
||
https://github.com/fmtlib/fmt/pull/1576).
|
||
Thanks @federico-busato, @chronoxor and @refnum.
|
||
|
||
- Improved documentation
|
||
(https://github.com/fmtlib/fmt/pull/1481,
|
||
https://github.com/fmtlib/fmt/pull/1523).
|
||
Thanks @JackBoosY and @imba-tjd.
|
||
|
||
- Fixed symbol visibility on Linux when compiling with
|
||
`-fvisibility=hidden`
|
||
(https://github.com/fmtlib/fmt/pull/1535). Thanks @milianw.
|
||
|
||
- Implemented various build configuration fixes and improvements
|
||
(https://github.com/fmtlib/fmt/issues/1264,
|
||
https://github.com/fmtlib/fmt/issues/1460,
|
||
https://github.com/fmtlib/fmt/pull/1534,
|
||
https://github.com/fmtlib/fmt/issues/1536,
|
||
https://github.com/fmtlib/fmt/issues/1545,
|
||
https://github.com/fmtlib/fmt/pull/1546,
|
||
https://github.com/fmtlib/fmt/issues/1566,
|
||
https://github.com/fmtlib/fmt/pull/1582,
|
||
https://github.com/fmtlib/fmt/issues/1597,
|
||
https://github.com/fmtlib/fmt/pull/1598).
|
||
Thanks @ambitslix, @jwillikers and @stac47.
|
||
|
||
- Fixed various warnings and compilation issues
|
||
(https://github.com/fmtlib/fmt/pull/1433,
|
||
https://github.com/fmtlib/fmt/issues/1461,
|
||
https://github.com/fmtlib/fmt/pull/1470,
|
||
https://github.com/fmtlib/fmt/pull/1480,
|
||
https://github.com/fmtlib/fmt/pull/1485,
|
||
https://github.com/fmtlib/fmt/pull/1492,
|
||
https://github.com/fmtlib/fmt/issues/1493,
|
||
https://github.com/fmtlib/fmt/issues/1504,
|
||
https://github.com/fmtlib/fmt/pull/1505,
|
||
https://github.com/fmtlib/fmt/pull/1512,
|
||
https://github.com/fmtlib/fmt/issues/1515,
|
||
https://github.com/fmtlib/fmt/pull/1516,
|
||
https://github.com/fmtlib/fmt/pull/1518,
|
||
https://github.com/fmtlib/fmt/pull/1519,
|
||
https://github.com/fmtlib/fmt/pull/1520,
|
||
https://github.com/fmtlib/fmt/pull/1521,
|
||
https://github.com/fmtlib/fmt/pull/1522,
|
||
https://github.com/fmtlib/fmt/issues/1524,
|
||
https://github.com/fmtlib/fmt/pull/1530,
|
||
https://github.com/fmtlib/fmt/issues/1531,
|
||
https://github.com/fmtlib/fmt/pull/1532,
|
||
https://github.com/fmtlib/fmt/issues/1539,
|
||
https://github.com/fmtlib/fmt/issues/1547,
|
||
https://github.com/fmtlib/fmt/issues/1548,
|
||
https://github.com/fmtlib/fmt/pull/1554,
|
||
https://github.com/fmtlib/fmt/issues/1567,
|
||
https://github.com/fmtlib/fmt/pull/1568,
|
||
https://github.com/fmtlib/fmt/pull/1569,
|
||
https://github.com/fmtlib/fmt/pull/1571,
|
||
https://github.com/fmtlib/fmt/pull/1573,
|
||
https://github.com/fmtlib/fmt/pull/1575,
|
||
https://github.com/fmtlib/fmt/pull/1581,
|
||
https://github.com/fmtlib/fmt/issues/1583,
|
||
https://github.com/fmtlib/fmt/issues/1586,
|
||
https://github.com/fmtlib/fmt/issues/1587,
|
||
https://github.com/fmtlib/fmt/issues/1594,
|
||
https://github.com/fmtlib/fmt/pull/1596,
|
||
https://github.com/fmtlib/fmt/issues/1604,
|
||
https://github.com/fmtlib/fmt/pull/1606,
|
||
https://github.com/fmtlib/fmt/issues/1607,
|
||
https://github.com/fmtlib/fmt/issues/1609).
|
||
Thanks @marti4d, @iPherian, @parkertomatoes, @gsjaardema, @chronoxor,
|
||
@DanielaE, @torsten48, @tohammer, @lefticus, @ryusakki, @adnsv, @fghzxm,
|
||
@refnum, @pramodk, @Spirrwell and @scramsby.
|
||
|
||
# 6.1.2 - 2019-12-11
|
||
|
||
- Fixed ABI compatibility with `libfmt.so.6.0.0`
|
||
(https://github.com/fmtlib/fmt/issues/1471).
|
||
- Fixed handling types convertible to `std::string_view`
|
||
(https://github.com/fmtlib/fmt/pull/1451). Thanks @denizevrenci.
|
||
- Made CUDA test an opt-in enabled via the `FMT_CUDA_TEST` CMake
|
||
option.
|
||
- Fixed sign conversion warnings
|
||
(https://github.com/fmtlib/fmt/pull/1440). Thanks @0x8000-0000.
|
||
|
||
# 6.1.1 - 2019-12-04
|
||
|
||
- Fixed shared library build on Windows
|
||
(https://github.com/fmtlib/fmt/pull/1443,
|
||
https://github.com/fmtlib/fmt/issues/1445,
|
||
https://github.com/fmtlib/fmt/pull/1446,
|
||
https://github.com/fmtlib/fmt/issues/1450).
|
||
Thanks @egorpugin and @bbolli.
|
||
- Added a missing decimal point in exponent notation with trailing
|
||
zeros.
|
||
- Removed deprecated `format_arg_store::TYPES`.
|
||
|
||
# 6.1.0 - 2019-12-01
|
||
|
||
- {fmt} now formats IEEE 754 `float` and `double` using the shortest
|
||
decimal representation with correct rounding by default:
|
||
|
||
```c++
|
||
#include <cmath>
|
||
#include <fmt/core.h>
|
||
|
||
int main() {
|
||
fmt::print("{}", M_PI);
|
||
}
|
||
```
|
||
|
||
prints `3.141592653589793`.
|
||
|
||
- Made the fast binary to decimal floating-point formatter the
|
||
default, simplified it and improved performance. {fmt} is now 15
|
||
times faster than libc++\'s `std::ostringstream`, 11 times faster
|
||
than `printf` and 10% faster than double-conversion on
|
||
[dtoa-benchmark](https://github.com/fmtlib/dtoa-benchmark):
|
||
|
||
| Function | Time (ns) | Speedup |
|
||
| ------------- | --------: | ------: |
|
||
| ostringstream | 1,346.30 | 1.00x |
|
||
| ostrstream | 1,195.74 | 1.13x |
|
||
| sprintf | 995.08 | 1.35x |
|
||
| doubleconv | 99.10 | 13.59x |
|
||
| fmt | 88.34 | 15.24x |
|
||
|
||
|
||
|
||
- {fmt} no longer converts `float` arguments to `double`. In
|
||
particular this improves the default (shortest) representation of
|
||
floats and makes `fmt::format` consistent with `std::format` specs
|
||
(https://github.com/fmtlib/fmt/issues/1336,
|
||
https://github.com/fmtlib/fmt/issues/1353,
|
||
https://github.com/fmtlib/fmt/pull/1360,
|
||
https://github.com/fmtlib/fmt/pull/1361):
|
||
|
||
```c++
|
||
fmt::print("{}", 0.1f);
|
||
```
|
||
|
||
prints `0.1` instead of `0.10000000149011612`.
|
||
|
||
Thanks @orivej.
|
||
|
||
- Made floating-point formatting output consistent with
|
||
`printf`/iostreams
|
||
(https://github.com/fmtlib/fmt/issues/1376,
|
||
https://github.com/fmtlib/fmt/issues/1417).
|
||
|
||
- Added support for 128-bit integers
|
||
(https://github.com/fmtlib/fmt/pull/1287):
|
||
|
||
```c++
|
||
fmt::print("{}", std::numeric_limits<__int128_t>::max());
|
||
```
|
||
|
||
prints `170141183460469231731687303715884105727`.
|
||
|
||
Thanks @denizevrenci.
|
||
|
||
- The overload of `print` that takes `text_style` is now atomic, i.e.
|
||
the output from different threads doesn\'t interleave
|
||
(https://github.com/fmtlib/fmt/pull/1351). Thanks @tankiJong.
|
||
|
||
- Made compile time in the header-only mode \~20% faster by reducing
|
||
the number of template instantiations. `wchar_t` overload of
|
||
`vprint` was moved from `fmt/core.h` to `fmt/format.h`.
|
||
|
||
- Added an overload of `fmt::join` that works with tuples
|
||
(https://github.com/fmtlib/fmt/issues/1322,
|
||
https://github.com/fmtlib/fmt/pull/1330):
|
||
|
||
```c++
|
||
#include <tuple>
|
||
#include <fmt/ranges.h>
|
||
|
||
int main() {
|
||
std::tuple<char, int, float> t{'a', 1, 2.0f};
|
||
fmt::print("{}", t);
|
||
}
|
||
```
|
||
|
||
prints `('a', 1, 2.0)`.
|
||
|
||
Thanks @jeremyong.
|
||
|
||
- Changed formatting of octal zero with prefix from \"00\" to \"0\":
|
||
|
||
```c++
|
||
fmt::print("{:#o}", 0);
|
||
```
|
||
|
||
prints `0`.
|
||
|
||
- The locale is now passed to ostream insertion (`<<`) operators
|
||
(https://github.com/fmtlib/fmt/pull/1406):
|
||
|
||
```c++
|
||
#include <fmt/locale.h>
|
||
#include <fmt/ostream.h>
|
||
|
||
struct S {
|
||
double value;
|
||
};
|
||
|
||
std::ostream& operator<<(std::ostream& os, S s) {
|
||
return os << s.value;
|
||
}
|
||
|
||
int main() {
|
||
auto s = fmt::format(std::locale("fr_FR.UTF-8"), "{}", S{0.42});
|
||
// s == "0,42"
|
||
}
|
||
```
|
||
|
||
Thanks @dlaugt.
|
||
|
||
- Locale-specific number formatting now uses grouping
|
||
(https://github.com/fmtlib/fmt/issues/1393,
|
||
https://github.com/fmtlib/fmt/pull/1394). Thanks @skrdaniel.
|
||
|
||
- Fixed handling of types with deleted implicit rvalue conversion to
|
||
`const char**` (https://github.com/fmtlib/fmt/issues/1421):
|
||
|
||
```c++
|
||
struct mystring {
|
||
operator const char*() const&;
|
||
operator const char*() &;
|
||
operator const char*() const&& = delete;
|
||
operator const char*() && = delete;
|
||
};
|
||
mystring str;
|
||
fmt::print("{}", str); // now compiles
|
||
```
|
||
|
||
- Enums are now mapped to correct underlying types instead of `int`
|
||
(https://github.com/fmtlib/fmt/pull/1286). Thanks @agmt.
|
||
|
||
- Enum classes are no longer implicitly converted to `int`
|
||
(https://github.com/fmtlib/fmt/issues/1424).
|
||
|
||
- Added `basic_format_parse_context` for consistency with C++20
|
||
`std::format` and deprecated `basic_parse_context`.
|
||
|
||
- Fixed handling of UTF-8 in precision
|
||
(https://github.com/fmtlib/fmt/issues/1389,
|
||
https://github.com/fmtlib/fmt/pull/1390). Thanks @tajtiattila.
|
||
|
||
- {fmt} can now be installed on Linux, macOS and Windows with
|
||
[Conda](https://docs.conda.io/en/latest/) using its
|
||
[conda-forge](https://conda-forge.org)
|
||
[package](https://github.com/conda-forge/fmt-feedstock)
|
||
(https://github.com/fmtlib/fmt/pull/1410):
|
||
|
||
conda install -c conda-forge fmt
|
||
|
||
Thanks @tdegeus.
|
||
|
||
- Added a CUDA test (https://github.com/fmtlib/fmt/pull/1285,
|
||
https://github.com/fmtlib/fmt/pull/1317).
|
||
Thanks @luncliff and @risa2000.
|
||
|
||
- Improved documentation
|
||
(https://github.com/fmtlib/fmt/pull/1276,
|
||
https://github.com/fmtlib/fmt/issues/1291,
|
||
https://github.com/fmtlib/fmt/issues/1296,
|
||
https://github.com/fmtlib/fmt/pull/1315,
|
||
https://github.com/fmtlib/fmt/pull/1332,
|
||
https://github.com/fmtlib/fmt/pull/1337,
|
||
https://github.com/fmtlib/fmt/issues/1395
|
||
https://github.com/fmtlib/fmt/pull/1418).
|
||
Thanks @waywardmonkeys, @pauldreik and @jackoalan.
|
||
|
||
- Various code improvements
|
||
(https://github.com/fmtlib/fmt/pull/1358,
|
||
https://github.com/fmtlib/fmt/pull/1407).
|
||
Thanks @orivej and @dpacbach.
|
||
|
||
- Fixed compile-time format string checks for user-defined types
|
||
(https://github.com/fmtlib/fmt/issues/1292).
|
||
|
||
- Worked around a false positive in `unsigned-integer-overflow` sanitizer
|
||
(https://github.com/fmtlib/fmt/issues/1377).
|
||
|
||
- Fixed various warnings and compilation issues
|
||
(https://github.com/fmtlib/fmt/issues/1273,
|
||
https://github.com/fmtlib/fmt/pull/1278,
|
||
https://github.com/fmtlib/fmt/pull/1280,
|
||
https://github.com/fmtlib/fmt/issues/1281,
|
||
https://github.com/fmtlib/fmt/issues/1288,
|
||
https://github.com/fmtlib/fmt/pull/1290,
|
||
https://github.com/fmtlib/fmt/pull/1301,
|
||
https://github.com/fmtlib/fmt/issues/1305,
|
||
https://github.com/fmtlib/fmt/issues/1306,
|
||
https://github.com/fmtlib/fmt/issues/1309,
|
||
https://github.com/fmtlib/fmt/pull/1312,
|
||
https://github.com/fmtlib/fmt/issues/1313,
|
||
https://github.com/fmtlib/fmt/issues/1316,
|
||
https://github.com/fmtlib/fmt/issues/1319,
|
||
https://github.com/fmtlib/fmt/pull/1320,
|
||
https://github.com/fmtlib/fmt/pull/1326,
|
||
https://github.com/fmtlib/fmt/pull/1328,
|
||
https://github.com/fmtlib/fmt/issues/1344,
|
||
https://github.com/fmtlib/fmt/pull/1345,
|
||
https://github.com/fmtlib/fmt/pull/1347,
|
||
https://github.com/fmtlib/fmt/pull/1349,
|
||
https://github.com/fmtlib/fmt/issues/1354,
|
||
https://github.com/fmtlib/fmt/issues/1362,
|
||
https://github.com/fmtlib/fmt/issues/1366,
|
||
https://github.com/fmtlib/fmt/pull/1364,
|
||
https://github.com/fmtlib/fmt/pull/1370,
|
||
https://github.com/fmtlib/fmt/pull/1371,
|
||
https://github.com/fmtlib/fmt/issues/1385,
|
||
https://github.com/fmtlib/fmt/issues/1388,
|
||
https://github.com/fmtlib/fmt/pull/1397,
|
||
https://github.com/fmtlib/fmt/pull/1414,
|
||
https://github.com/fmtlib/fmt/pull/1416,
|
||
https://github.com/fmtlib/fmt/issues/1422
|
||
https://github.com/fmtlib/fmt/pull/1427,
|
||
https://github.com/fmtlib/fmt/issues/1431,
|
||
https://github.com/fmtlib/fmt/pull/1433).
|
||
Thanks @hhb, @gsjaardema, @gabime, @neheb, @vedranmiletic, @dkavolis,
|
||
@mwinterb, @orivej, @denizevrenci, @leonklingele, @chronoxor, @kent-tri,
|
||
@0x8000-0000 and @marti4d.
|
||
|
||
# 6.0.0 - 2019-08-26
|
||
|
||
- Switched to the [MIT license](
|
||
https://github.com/fmtlib/fmt/blob/5a4b24613ba16cc689977c3b5bd8274a3ba1dd1f/LICENSE.rst)
|
||
with an optional exception that allows distributing binary code
|
||
without attribution.
|
||
|
||
- Floating-point formatting is now locale-independent by default:
|
||
|
||
```c++
|
||
#include <locale>
|
||
#include <fmt/core.h>
|
||
|
||
int main() {
|
||
std::locale::global(std::locale("ru_RU.UTF-8"));
|
||
fmt::print("value = {}", 4.2);
|
||
}
|
||
```
|
||
|
||
prints \"value = 4.2\" regardless of the locale.
|
||
|
||
For locale-specific formatting use the `n` specifier:
|
||
|
||
```c++
|
||
std::locale::global(std::locale("ru_RU.UTF-8"));
|
||
fmt::print("value = {:n}", 4.2);
|
||
```
|
||
|
||
prints \"value = 4,2\".
|
||
|
||
- Added an experimental Grisu floating-point formatting algorithm
|
||
implementation (disabled by default). To enable it compile with the
|
||
`FMT_USE_GRISU` macro defined to 1:
|
||
|
||
```c++
|
||
#define FMT_USE_GRISU 1
|
||
#include <fmt/format.h>
|
||
|
||
auto s = fmt::format("{}", 4.2); // formats 4.2 using Grisu
|
||
```
|
||
|
||
With Grisu enabled, {fmt} is 13x faster than `std::ostringstream`
|
||
(libc++) and 10x faster than `sprintf` on
|
||
[dtoa-benchmark](https://github.com/fmtlib/dtoa-benchmark) ([full
|
||
results](https://fmt.dev/unknown_mac64_clang10.0.html)):
|
||
|
||
|
||
|
||
- Separated formatting and parsing contexts for consistency with
|
||
[C++20 std::format](http://eel.is/c++draft/format), removing the
|
||
undocumented `basic_format_context::parse_context()` function.
|
||
|
||
- Added [oss-fuzz](https://github.com/google/oss-fuzz) support
|
||
(https://github.com/fmtlib/fmt/pull/1199). Thanks @pauldreik.
|
||
|
||
- `formatter` specializations now always take precedence over
|
||
`operator<<` (https://github.com/fmtlib/fmt/issues/952):
|
||
|
||
```c++
|
||
#include <iostream>
|
||
#include <fmt/ostream.h>
|
||
|
||
struct S {};
|
||
|
||
std::ostream& operator<<(std::ostream& os, S) {
|
||
return os << 1;
|
||
}
|
||
|
||
template <>
|
||
struct fmt::formatter<S> : fmt::formatter<int> {
|
||
auto format(S, format_context& ctx) {
|
||
return formatter<int>::format(2, ctx);
|
||
}
|
||
};
|
||
|
||
int main() {
|
||
std::cout << S() << "\n"; // prints 1 using operator<<
|
||
fmt::print("{}\n", S()); // prints 2 using formatter
|
||
}
|
||
```
|
||
|
||
- Introduced the experimental `fmt::compile` function that does format
|
||
string compilation
|
||
(https://github.com/fmtlib/fmt/issues/618,
|
||
https://github.com/fmtlib/fmt/issues/1169,
|
||
https://github.com/fmtlib/fmt/pull/1171):
|
||
|
||
```c++
|
||
#include <fmt/compile.h>
|
||
|
||
auto f = fmt::compile<int>("{}");
|
||
std::string s = fmt::format(f, 42); // can be called multiple times to
|
||
// format different values
|
||
// s == "42"
|
||
```
|
||
|
||
It moves the cost of parsing a format string outside of the format
|
||
function which can be beneficial when identically formatting many
|
||
objects of the same types. Thanks @stryku.
|
||
|
||
- Added experimental `%` format specifier that formats floating-point
|
||
values as percentages
|
||
(https://github.com/fmtlib/fmt/pull/1060,
|
||
https://github.com/fmtlib/fmt/pull/1069,
|
||
https://github.com/fmtlib/fmt/pull/1071):
|
||
|
||
```c++
|
||
auto s = fmt::format("{:.1%}", 0.42); // s == "42.0%"
|
||
```
|
||
|
||
Thanks @gawain-bolton.
|
||
|
||
- Implemented precision for floating-point durations
|
||
(https://github.com/fmtlib/fmt/issues/1004,
|
||
https://github.com/fmtlib/fmt/pull/1012):
|
||
|
||
```c++
|
||
auto s = fmt::format("{:.1}", std::chrono::duration<double>(1.234));
|
||
// s == 1.2s
|
||
```
|
||
|
||
Thanks @DanielaE.
|
||
|
||
- Implemented `chrono` format specifiers `%Q` and `%q` that give the
|
||
value and the unit respectively
|
||
(https://github.com/fmtlib/fmt/pull/1019):
|
||
|
||
```c++
|
||
auto value = fmt::format("{:%Q}", 42s); // value == "42"
|
||
auto unit = fmt::format("{:%q}", 42s); // unit == "s"
|
||
```
|
||
|
||
Thanks @DanielaE.
|
||
|
||
- Fixed handling of dynamic width in chrono formatter:
|
||
|
||
```c++
|
||
auto s = fmt::format("{0:{1}%H:%M:%S}", std::chrono::seconds(12345), 12);
|
||
// ^ width argument index ^ width
|
||
// s == "03:25:45 "
|
||
```
|
||
|
||
Thanks Howard Hinnant.
|
||
|
||
- Removed deprecated `fmt/time.h`. Use `fmt/chrono.h` instead.
|
||
|
||
- Added `fmt::format` and `fmt::vformat` overloads that take
|
||
`text_style` (https://github.com/fmtlib/fmt/issues/993,
|
||
https://github.com/fmtlib/fmt/pull/994):
|
||
|
||
```c++
|
||
#include <fmt/color.h>
|
||
|
||
std::string message = fmt::format(fmt::emphasis::bold | fg(fmt::color::red),
|
||
"The answer is {}.", 42);
|
||
```
|
||
|
||
Thanks @Naios.
|
||
|
||
- Removed the deprecated color API (`print_colored`). Use the new API,
|
||
namely `print` overloads that take `text_style` instead.
|
||
|
||
- Made `std::unique_ptr` and `std::shared_ptr` formattable as pointers
|
||
via `fmt::ptr` (https://github.com/fmtlib/fmt/pull/1121):
|
||
|
||
```c++
|
||
std::unique_ptr<int> p = ...;
|
||
fmt::print("{}", fmt::ptr(p)); // prints p as a pointer
|
||
```
|
||
|
||
Thanks @sighingnow.
|
||
|
||
- Made `print` and `vprint` report I/O errors
|
||
(https://github.com/fmtlib/fmt/issues/1098,
|
||
https://github.com/fmtlib/fmt/pull/1099). Thanks @BillyDonahue.
|
||
|
||
- Marked deprecated APIs with the `[[deprecated]]` attribute and
|
||
removed internal uses of deprecated APIs
|
||
(https://github.com/fmtlib/fmt/pull/1022). Thanks @eliaskosunen.
|
||
|
||
- Modernized the codebase using more C++11 features and removing
|
||
workarounds. Most importantly, `buffer_context` is now an alias
|
||
template, so use `buffer_context<T>` instead of
|
||
`buffer_context<T>::type`. These features require GCC 4.8 or later.
|
||
|
||
- `formatter` specializations now always take precedence over implicit
|
||
conversions to `int` and the undocumented `convert_to_int` trait is
|
||
now deprecated.
|
||
|
||
- Moved the undocumented `basic_writer`, `writer`, and `wwriter` types
|
||
to the `internal` namespace.
|
||
|
||
- Removed deprecated `basic_format_context::begin()`. Use `out()`
|
||
instead.
|
||
|
||
- Disallowed passing the result of `join` as an lvalue to prevent
|
||
misuse.
|
||
|
||
- Refactored the undocumented structs that represent parsed format
|
||
specifiers to simplify the API and allow multibyte fill.
|
||
|
||
- Moved SFINAE to template parameters to reduce symbol sizes.
|
||
|
||
- Switched to `fputws` for writing wide strings so that it\'s no
|
||
longer required to call `_setmode` on Windows
|
||
(https://github.com/fmtlib/fmt/issues/1229,
|
||
https://github.com/fmtlib/fmt/pull/1243). Thanks @jackoalan.
|
||
|
||
- Improved literal-based API
|
||
(https://github.com/fmtlib/fmt/pull/1254). Thanks @sylveon.
|
||
|
||
- Added support for exotic platforms without `uintptr_t` such as IBM i
|
||
(AS/400) which has 128-bit pointers and only 64-bit integers
|
||
(https://github.com/fmtlib/fmt/issues/1059).
|
||
|
||
- Added [Sublime Text syntax highlighting config](
|
||
https://github.com/fmtlib/fmt/blob/master/support/C%2B%2B.sublime-syntax)
|
||
(https://github.com/fmtlib/fmt/issues/1037). Thanks @Kronuz.
|
||
|
||
- Added the `FMT_ENFORCE_COMPILE_STRING` macro to enforce the use of
|
||
compile-time format strings
|
||
(https://github.com/fmtlib/fmt/pull/1231). Thanks @jackoalan.
|
||
|
||
- Stopped setting `CMAKE_BUILD_TYPE` if {fmt} is a subproject
|
||
(https://github.com/fmtlib/fmt/issues/1081).
|
||
|
||
- Various build improvements
|
||
(https://github.com/fmtlib/fmt/pull/1039,
|
||
https://github.com/fmtlib/fmt/pull/1078,
|
||
https://github.com/fmtlib/fmt/pull/1091,
|
||
https://github.com/fmtlib/fmt/pull/1103,
|
||
https://github.com/fmtlib/fmt/pull/1177).
|
||
Thanks @luncliff, @jasonszang, @olafhering, @Lecetem and @pauldreik.
|
||
|
||
- Improved documentation
|
||
(https://github.com/fmtlib/fmt/issues/1049,
|
||
https://github.com/fmtlib/fmt/pull/1051,
|
||
https://github.com/fmtlib/fmt/pull/1083,
|
||
https://github.com/fmtlib/fmt/pull/1113,
|
||
https://github.com/fmtlib/fmt/pull/1114,
|
||
https://github.com/fmtlib/fmt/issues/1146,
|
||
https://github.com/fmtlib/fmt/issues/1180,
|
||
https://github.com/fmtlib/fmt/pull/1250,
|
||
https://github.com/fmtlib/fmt/pull/1252,
|
||
https://github.com/fmtlib/fmt/pull/1265).
|
||
Thanks @mikelui, @foonathan, @BillyDonahue, @jwakely, @kaisbe and
|
||
@sdebionne.
|
||
|
||
- Fixed ambiguous formatter specialization in `fmt/ranges.h`
|
||
(https://github.com/fmtlib/fmt/issues/1123).
|
||
|
||
- Fixed formatting of a non-empty `std::filesystem::path` which is an
|
||
infinitely deep range of its components
|
||
(https://github.com/fmtlib/fmt/issues/1268).
|
||
|
||
- Fixed handling of general output iterators when formatting
|
||
characters (https://github.com/fmtlib/fmt/issues/1056,
|
||
https://github.com/fmtlib/fmt/pull/1058). Thanks @abolz.
|
||
|
||
- Fixed handling of output iterators in `formatter` specialization for
|
||
ranges (https://github.com/fmtlib/fmt/issues/1064).
|
||
|
||
- Fixed handling of exotic character types
|
||
(https://github.com/fmtlib/fmt/issues/1188).
|
||
|
||
- Made chrono formatting work with exceptions disabled
|
||
(https://github.com/fmtlib/fmt/issues/1062).
|
||
|
||
- Fixed DLL visibility issues
|
||
(https://github.com/fmtlib/fmt/pull/1134,
|
||
https://github.com/fmtlib/fmt/pull/1147). Thanks @denchat.
|
||
|
||
- Disabled the use of UDL template extension on GCC 9
|
||
(https://github.com/fmtlib/fmt/issues/1148).
|
||
|
||
- Removed misplaced `format` compile-time checks from `printf`
|
||
(https://github.com/fmtlib/fmt/issues/1173).
|
||
|
||
- Fixed issues in the experimental floating-point formatter
|
||
(https://github.com/fmtlib/fmt/issues/1072,
|
||
https://github.com/fmtlib/fmt/issues/1129,
|
||
https://github.com/fmtlib/fmt/issues/1153,
|
||
https://github.com/fmtlib/fmt/pull/1155,
|
||
https://github.com/fmtlib/fmt/issues/1210,
|
||
https://github.com/fmtlib/fmt/issues/1222). Thanks @alabuzhev.
|
||
|
||
- Fixed bugs discovered by fuzzing or during fuzzing integration
|
||
(https://github.com/fmtlib/fmt/issues/1124,
|
||
https://github.com/fmtlib/fmt/issues/1127,
|
||
https://github.com/fmtlib/fmt/issues/1132,
|
||
https://github.com/fmtlib/fmt/pull/1135,
|
||
https://github.com/fmtlib/fmt/issues/1136,
|
||
https://github.com/fmtlib/fmt/issues/1141,
|
||
https://github.com/fmtlib/fmt/issues/1142,
|
||
https://github.com/fmtlib/fmt/issues/1178,
|
||
https://github.com/fmtlib/fmt/issues/1179,
|
||
https://github.com/fmtlib/fmt/issues/1194). Thanks @pauldreik.
|
||
|
||
- Fixed building tests on FreeBSD and Hurd
|
||
(https://github.com/fmtlib/fmt/issues/1043). Thanks @jackyf.
|
||
|
||
- Fixed various warnings and compilation issues
|
||
(https://github.com/fmtlib/fmt/pull/998,
|
||
https://github.com/fmtlib/fmt/pull/1006,
|
||
https://github.com/fmtlib/fmt/issues/1008,
|
||
https://github.com/fmtlib/fmt/issues/1011,
|
||
https://github.com/fmtlib/fmt/issues/1025,
|
||
https://github.com/fmtlib/fmt/pull/1027,
|
||
https://github.com/fmtlib/fmt/pull/1028,
|
||
https://github.com/fmtlib/fmt/pull/1029,
|
||
https://github.com/fmtlib/fmt/pull/1030,
|
||
https://github.com/fmtlib/fmt/pull/1031,
|
||
https://github.com/fmtlib/fmt/pull/1054,
|
||
https://github.com/fmtlib/fmt/issues/1063,
|
||
https://github.com/fmtlib/fmt/pull/1068,
|
||
https://github.com/fmtlib/fmt/pull/1074,
|
||
https://github.com/fmtlib/fmt/pull/1075,
|
||
https://github.com/fmtlib/fmt/pull/1079,
|
||
https://github.com/fmtlib/fmt/pull/1086,
|
||
https://github.com/fmtlib/fmt/issues/1088,
|
||
https://github.com/fmtlib/fmt/pull/1089,
|
||
https://github.com/fmtlib/fmt/pull/1094,
|
||
https://github.com/fmtlib/fmt/issues/1101,
|
||
https://github.com/fmtlib/fmt/pull/1102,
|
||
https://github.com/fmtlib/fmt/issues/1105,
|
||
https://github.com/fmtlib/fmt/pull/1107,
|
||
https://github.com/fmtlib/fmt/issues/1115,
|
||
https://github.com/fmtlib/fmt/issues/1117,
|
||
https://github.com/fmtlib/fmt/issues/1118,
|
||
https://github.com/fmtlib/fmt/issues/1120,
|
||
https://github.com/fmtlib/fmt/issues/1123,
|
||
https://github.com/fmtlib/fmt/pull/1139,
|
||
https://github.com/fmtlib/fmt/issues/1140,
|
||
https://github.com/fmtlib/fmt/issues/1143,
|
||
https://github.com/fmtlib/fmt/pull/1144,
|
||
https://github.com/fmtlib/fmt/pull/1150,
|
||
https://github.com/fmtlib/fmt/pull/1151,
|
||
https://github.com/fmtlib/fmt/issues/1152,
|
||
https://github.com/fmtlib/fmt/issues/1154,
|
||
https://github.com/fmtlib/fmt/issues/1156,
|
||
https://github.com/fmtlib/fmt/pull/1159,
|
||
https://github.com/fmtlib/fmt/issues/1175,
|
||
https://github.com/fmtlib/fmt/issues/1181,
|
||
https://github.com/fmtlib/fmt/issues/1186,
|
||
https://github.com/fmtlib/fmt/pull/1187,
|
||
https://github.com/fmtlib/fmt/pull/1191,
|
||
https://github.com/fmtlib/fmt/issues/1197,
|
||
https://github.com/fmtlib/fmt/issues/1200,
|
||
https://github.com/fmtlib/fmt/issues/1203,
|
||
https://github.com/fmtlib/fmt/issues/1205,
|
||
https://github.com/fmtlib/fmt/pull/1206,
|
||
https://github.com/fmtlib/fmt/issues/1213,
|
||
https://github.com/fmtlib/fmt/issues/1214,
|
||
https://github.com/fmtlib/fmt/pull/1217,
|
||
https://github.com/fmtlib/fmt/issues/1228,
|
||
https://github.com/fmtlib/fmt/pull/1230,
|
||
https://github.com/fmtlib/fmt/issues/1232,
|
||
https://github.com/fmtlib/fmt/pull/1235,
|
||
https://github.com/fmtlib/fmt/pull/1236,
|
||
https://github.com/fmtlib/fmt/issues/1240).
|
||
Thanks @DanielaE, @mwinterb, @eliaskosunen, @morinmorin, @ricco19,
|
||
@waywardmonkeys, @chronoxor, @remyabel, @pauldreik, @gsjaardema, @rcane,
|
||
@mocabe, @denchat, @cjdb, @HazardyKnusperkeks, @vedranmiletic, @jackoalan,
|
||
@DaanDeMeyer and @starkmapper.
|
||
|
||
# 5.3.0 - 2018-12-28
|
||
|
||
- Introduced experimental chrono formatting support:
|
||
|
||
```c++
|
||
#include <fmt/chrono.h>
|
||
|
||
int main() {
|
||
using namespace std::literals::chrono_literals;
|
||
fmt::print("Default format: {} {}\n", 42s, 100ms);
|
||
fmt::print("strftime-like format: {:%H:%M:%S}\n", 3h + 15min + 30s);
|
||
}
|
||
```
|
||
|
||
prints:
|
||
|
||
Default format: 42s 100ms
|
||
strftime-like format: 03:15:30
|
||
|
||
- Added experimental support for emphasis (bold, italic, underline,
|
||
strikethrough), colored output to a file stream, and improved
|
||
colored formatting API
|
||
(https://github.com/fmtlib/fmt/pull/961,
|
||
https://github.com/fmtlib/fmt/pull/967,
|
||
https://github.com/fmtlib/fmt/pull/973):
|
||
|
||
```c++
|
||
#include <fmt/color.h>
|
||
|
||
int main() {
|
||
fmt::print(fg(fmt::color::crimson) | fmt::emphasis::bold,
|
||
"Hello, {}!\n", "world");
|
||
fmt::print(fg(fmt::color::floral_white) | bg(fmt::color::slate_gray) |
|
||
fmt::emphasis::underline, "Olá, {}!\n", "Mundo");
|
||
fmt::print(fg(fmt::color::steel_blue) | fmt::emphasis::italic,
|
||
"你好{}！\n", "世界");
|
||
}
|
||
```
|
||
|
||
prints the following on modern terminals with RGB color support:
|
||
|
||
|
||
|
||
Thanks @Rakete1111.
|
||
|
||
- Added support for 4-bit terminal colors
|
||
(https://github.com/fmtlib/fmt/issues/968,
|
||
https://github.com/fmtlib/fmt/pull/974)
|
||
|
||
```c++
|
||
#include <fmt/color.h>
|
||
|
||
int main() {
|
||
print(fg(fmt::terminal_color::red), "stop\n");
|
||
}
|
||
```
|
||
|
||
Note that these colors vary by terminal:
|
||
|
||
|
||
|
||
Thanks @Rakete1111.
|
||
|
||
- Parameterized formatting functions on the type of the format string
|
||
(https://github.com/fmtlib/fmt/issues/880,
|
||
https://github.com/fmtlib/fmt/pull/881,
|
||
https://github.com/fmtlib/fmt/pull/883,
|
||
https://github.com/fmtlib/fmt/pull/885,
|
||
https://github.com/fmtlib/fmt/pull/897,
|
||
https://github.com/fmtlib/fmt/issues/920). Any object of
|
||
type `S` that has an overloaded `to_string_view(const S&)` returning
|
||
`fmt::string_view` can be used as a format string:
|
||
|
||
```c++
|
||
namespace my_ns {
|
||
inline string_view to_string_view(const my_string& s) {
|
||
return {s.data(), s.length()};
|
||
}
|
||
}
|
||
|
||
std::string message = fmt::format(my_string("The answer is {}."), 42);
|
||
```
|
||
|
||
Thanks @DanielaE.
|
||
|
||
- Made `std::string_view` work as a format string
|
||
(https://github.com/fmtlib/fmt/pull/898):
|
||
|
||
```c++
|
||
auto message = fmt::format(std::string_view("The answer is {}."), 42);
|
||
```
|
||
|
||
Thanks @DanielaE.
|
||
|
||
- Added wide string support to compile-time format string checks
|
||
(https://github.com/fmtlib/fmt/pull/924):
|
||
|
||
```c++
|
||
print(fmt(L"{:f}"), 42); // compile-time error: invalid type specifier
|
||
```
|
||
|
||
Thanks @XZiar.
|
||
|
||
- Made colored print functions work with wide strings
|
||
(https://github.com/fmtlib/fmt/pull/867):
|
||
|
||
```c++
|
||
#include <fmt/color.h>
|
||
|
||
int main() {
|
||
print(fg(fmt::color::red), L"{}\n", 42);
|
||
}
|
||
```
|
||
|
||
Thanks @DanielaE.
|
||
|
||
- Introduced experimental Unicode support
|
||
(https://github.com/fmtlib/fmt/issues/628,
|
||
https://github.com/fmtlib/fmt/pull/891):
|
||
|
||
```c++
|
||
using namespace fmt::literals;
|
||
auto s = fmt::format("{:*^5}"_u, "🤡"_u); // s == "**🤡**"_u
|
||
```
|
||
|
||
- Improved locale support:
|
||
|
||
```c++
|
||
#include <fmt/locale.h>
|
||
|
||
struct numpunct : std::numpunct<char> {
|
||
protected:
|
||
char do_thousands_sep() const override { return '~'; }
|
||
};
|
||
|
||
std::locale loc;
|
||
auto s = fmt::format(std::locale(loc, new numpunct()), "{:n}", 1234567);
|
||
// s == "1~234~567"
|
||
```
|
||
|
||
- Constrained formatting functions on proper iterator types
|
||
(https://github.com/fmtlib/fmt/pull/921). Thanks @DanielaE.
|
||
|
||
- Added `make_printf_args` and `make_wprintf_args` functions
|
||
(https://github.com/fmtlib/fmt/pull/934). Thanks @tnovotny.
|
||
|
||
- Deprecated `fmt::visit`, `parse_context`, and `wparse_context`. Use
|
||
`fmt::visit_format_arg`, `format_parse_context`, and
|
||
`wformat_parse_context` instead.
|
||
|
||
- Removed undocumented `basic_fixed_buffer` which has been superseded
|
||
by the iterator-based API
|
||
(https://github.com/fmtlib/fmt/issues/873,
|
||
https://github.com/fmtlib/fmt/pull/902). Thanks @superfunc.
|
||
|
||
- Disallowed repeated leading zeros in an argument ID:
|
||
|
||
```c++
|
||
fmt::print("{000}", 42); // error
|
||
```
|
||
|
||
- Reintroduced support for gcc 4.4.
|
||
|
||
- Fixed compilation on platforms with exotic `double`
|
||
(https://github.com/fmtlib/fmt/issues/878).
|
||
|
||
- Improved documentation
|
||
(https://github.com/fmtlib/fmt/issues/164,
|
||
https://github.com/fmtlib/fmt/issues/877,
|
||
https://github.com/fmtlib/fmt/pull/901,
|
||
https://github.com/fmtlib/fmt/pull/906,
|
||
https://github.com/fmtlib/fmt/pull/979).
|
||
Thanks @kookjr, @DarkDimius and @HecticSerenity.
|
||
|
||
- Added pkgconfig support which makes it easier to consume the library
|
||
from meson and other build systems
|
||
(https://github.com/fmtlib/fmt/pull/916). Thanks @colemickens.
|
||
|
||
- Various build improvements
|
||
(https://github.com/fmtlib/fmt/pull/909,
|
||
https://github.com/fmtlib/fmt/pull/926,
|
||
https://github.com/fmtlib/fmt/pull/937,
|
||
https://github.com/fmtlib/fmt/pull/953,
|
||
https://github.com/fmtlib/fmt/pull/959).
|
||
Thanks @tchaikov, @luncliff, @AndreasSchoenle, @hotwatermorning and @Zefz.
|
||
|
||
- Improved `string_view` construction performance
|
||
(https://github.com/fmtlib/fmt/pull/914). Thanks @gabime.
|
||
|
||
- Fixed non-matching char types
|
||
(https://github.com/fmtlib/fmt/pull/895). Thanks @DanielaE.
|
||
|
||
- Fixed `format_to_n` with `std::back_insert_iterator`
|
||
(https://github.com/fmtlib/fmt/pull/913). Thanks @DanielaE.
|
||
|
||
- Fixed locale-dependent formatting
|
||
(https://github.com/fmtlib/fmt/issues/905).
|
||
|
||
- Fixed various compiler warnings and errors
|
||
(https://github.com/fmtlib/fmt/pull/882,
|
||
https://github.com/fmtlib/fmt/pull/886,
|
||
https://github.com/fmtlib/fmt/pull/933,
|
||
https://github.com/fmtlib/fmt/pull/941,
|
||
https://github.com/fmtlib/fmt/issues/931,
|
||
https://github.com/fmtlib/fmt/pull/943,
|
||
https://github.com/fmtlib/fmt/pull/954,
|
||
https://github.com/fmtlib/fmt/pull/956,
|
||
https://github.com/fmtlib/fmt/pull/962,
|
||
https://github.com/fmtlib/fmt/issues/965,
|
||
https://github.com/fmtlib/fmt/issues/977,
|
||
https://github.com/fmtlib/fmt/pull/983,
|
||
https://github.com/fmtlib/fmt/pull/989).
|
||
Thanks @Luthaf, @stevenhoving, @christinaa, @lgritz, @DanielaE,
|
||
@0x8000-0000 and @liuping1997.
|
||
|
||
# 5.2.1 - 2018-09-21
|
||
|
||
- Fixed `visit` lookup issues on gcc 7 & 8
|
||
(https://github.com/fmtlib/fmt/pull/870). Thanks @medithe.
|
||
- Fixed linkage errors on older gcc.
|
||
- Prevented `fmt/range.h` from specializing `fmt::basic_string_view`
|
||
(https://github.com/fmtlib/fmt/issues/865,
|
||
https://github.com/fmtlib/fmt/pull/868). Thanks @hhggit.
|
||
- Improved error message when formatting unknown types
|
||
(https://github.com/fmtlib/fmt/pull/872). Thanks @foonathan.
|
||
- Disabled templated user-defined literals when compiled under nvcc
|
||
(https://github.com/fmtlib/fmt/pull/875). Thanks @CandyGumdrop.
|
||
- Fixed `format_to` formatting to `wmemory_buffer`
|
||
(https://github.com/fmtlib/fmt/issues/874).
|
||
|
||
# 5.2.0 - 2018-09-13
|
||
|
||
- Optimized format string parsing and argument processing which
|
||
resulted in up to 5x speed up on long format strings and significant
|
||
performance boost on various benchmarks. For example, version 5.2 is
|
||
2.22x faster than 5.1 on decimal integer formatting with `format_to`
|
||
(macOS, clang-902.0.39.2):
|
||
|
||
| Method | Time, s | Speedup |
|
||
| -------------------------- | --------------: | ------: |
|
||
| fmt::format 5.1 | 0.58 | |
|
||
| fmt::format 5.2 | 0.35 | 1.66x |
|
||
| fmt::format_to 5.1 | 0.51 | |
|
||
| fmt::format_to 5.2 | 0.23 | 2.22x |
|
||
| sprintf | 0.71 | |
|
||
| std::to_string | 1.01 | |
|
||
| std::stringstream | 1.73 | |
|
||
|
||
- Changed the `fmt` macro from opt-out to opt-in to prevent name
|
||
collisions. To enable it define the `FMT_STRING_ALIAS` macro to 1
|
||
before including `fmt/format.h`:
|
||
|
||
```c++
|
||
#define FMT_STRING_ALIAS 1
|
||
#include <fmt/format.h>
|
||
std::string answer = format(fmt("{}"), 42);
|
||
```
|
||
|
||
- Added compile-time format string checks to `format_to` overload that
|
||
takes `fmt::memory_buffer`
|
||
(https://github.com/fmtlib/fmt/issues/783):
|
||
|
||
```c++
|
||
fmt::memory_buffer buf;
|
||
// Compile-time error: invalid type specifier.
|
||
fmt::format_to(buf, fmt("{:d}"), "foo");
|
||
```
|
||
|
||
- Moved experimental color support to `fmt/color.h` and enabled the
|
||
new API by default. The old API can be enabled by defining the
|
||
`FMT_DEPRECATED_COLORS` macro.
|
||
|
||
- Added formatting support for types explicitly convertible to
|
||
`fmt::string_view`:
|
||
|
||
```c++
|
||
struct foo {
|
||
explicit operator fmt::string_view() const { return "foo"; }
|
||
};
|
||
auto s = format("{}", foo());
|
||
```
|
||
|
||
In particular, this makes formatting function work with
|
||
`folly::StringPiece`.
|
||
|
||
- Implemented preliminary support for `char*_t` by replacing the
|
||
`format` function overloads with a single function template
|
||
parameterized on the string type.
|
||
|
||
- Added support for dynamic argument lists
|
||
(https://github.com/fmtlib/fmt/issues/814,
|
||
https://github.com/fmtlib/fmt/pull/819). Thanks @MikePopoloski.
|
||
|
||
- Reduced executable size overhead for embedded targets using newlib
|
||
nano by making locale dependency optional
|
||
(https://github.com/fmtlib/fmt/pull/839). Thanks @teajay-fr.
|
||
|
||
- Keep `noexcept` specifier when exceptions are disabled
|
||
(https://github.com/fmtlib/fmt/issues/801,
|
||
https://github.com/fmtlib/fmt/pull/810). Thanks @qis.
|
||
|
||
- Fixed formatting of user-defined types providing `operator<<` with
|
||
`format_to_n` (https://github.com/fmtlib/fmt/pull/806).
|
||
Thanks @mkurdej.
|
||
|
||
- Fixed dynamic linkage of new symbols
|
||
(https://github.com/fmtlib/fmt/issues/808).
|
||
|
||
- Fixed global initialization issue
|
||
(https://github.com/fmtlib/fmt/issues/807):
|
||
|
||
```c++
|
||
// This works on compilers with constexpr support.
|
||
static const std::string answer = fmt::format("{}", 42);
|
||
```
|
||
|
||
- Fixed various compiler warnings and errors
|
||
(https://github.com/fmtlib/fmt/pull/804,
|
||
https://github.com/fmtlib/fmt/issues/809,
|
||
https://github.com/fmtlib/fmt/pull/811,
|
||
https://github.com/fmtlib/fmt/issues/822,
|
||
https://github.com/fmtlib/fmt/pull/827,
|
||
https://github.com/fmtlib/fmt/issues/830,
|
||
https://github.com/fmtlib/fmt/pull/838,
|
||
https://github.com/fmtlib/fmt/issues/843,
|
||
https://github.com/fmtlib/fmt/pull/844,
|
||
https://github.com/fmtlib/fmt/issues/851,
|
||
https://github.com/fmtlib/fmt/pull/852,
|
||
https://github.com/fmtlib/fmt/pull/854).
|
||
Thanks @henryiii, @medithe, and @eliasdaler.
|
||
|
||
# 5.1.0 - 2018-07-05
|
||
|
||
- Added experimental support for RGB color output enabled with the
|
||
`FMT_EXTENDED_COLORS` macro:
|
||
|
||
```c++
|
||
#define FMT_EXTENDED_COLORS
|
||
#define FMT_HEADER_ONLY // or compile fmt with FMT_EXTENDED_COLORS defined
|
||
#include <fmt/format.h>
|
||
|
||
fmt::print(fmt::color::steel_blue, "Some beautiful text");
|
||
```
|
||
|
||
The old API (the `print_colored` and `vprint_colored` functions and
|
||
the `color` enum) is now deprecated.
|
||
(https://github.com/fmtlib/fmt/issues/762
|
||
https://github.com/fmtlib/fmt/pull/767). thanks @Remotion.
|
||
|
||
- Added quotes to strings in ranges and tuples
|
||
(https://github.com/fmtlib/fmt/pull/766). Thanks @Remotion.
|
||
|
||
- Made `format_to` work with `basic_memory_buffer`
|
||
(https://github.com/fmtlib/fmt/issues/776).
|
||
|
||
- Added `vformat_to_n` and `wchar_t` overload of `format_to_n`
|
||
(https://github.com/fmtlib/fmt/issues/764,
|
||
https://github.com/fmtlib/fmt/issues/769).
|
||
|
||
- Made `is_range` and `is_tuple_like` part of public (experimental)
|
||
API to allow specialization for user-defined types
|
||
(https://github.com/fmtlib/fmt/issues/751,
|
||
https://github.com/fmtlib/fmt/pull/759). Thanks @drrlvn.
|
||
|
||
- Added more compilers to continuous integration and increased
|
||
`FMT_PEDANTIC` warning levels
|
||
(https://github.com/fmtlib/fmt/pull/736). Thanks @eliaskosunen.
|
||
|
||
- Fixed compilation with MSVC 2013.
|
||
|
||
- Fixed handling of user-defined types in `format_to`
|
||
(https://github.com/fmtlib/fmt/issues/793).
|
||
|
||
- Forced linking of inline `vformat` functions into the library
|
||
(https://github.com/fmtlib/fmt/issues/795).
|
||
|
||
- Fixed incorrect call to on_align in `'{:}='`
|
||
(https://github.com/fmtlib/fmt/issues/750).
|
||
|
||
- Fixed floating-point formatting to a non-back_insert_iterator with
|
||
sign & numeric alignment specified
|
||
(https://github.com/fmtlib/fmt/issues/756).
|
||
|
||
- Fixed formatting to an array with `format_to_n`
|
||
(https://github.com/fmtlib/fmt/issues/778).
|
||
|
||
- Fixed formatting of more than 15 named arguments
|
||
(https://github.com/fmtlib/fmt/issues/754).
|
||
|
||
- Fixed handling of compile-time strings when including
|
||
`fmt/ostream.h`. (https://github.com/fmtlib/fmt/issues/768).
|
||
|
||
- Fixed various compiler warnings and errors
|
||
(https://github.com/fmtlib/fmt/issues/742,
|
||
https://github.com/fmtlib/fmt/issues/748,
|
||
https://github.com/fmtlib/fmt/issues/752,
|
||
https://github.com/fmtlib/fmt/issues/770,
|
||
https://github.com/fmtlib/fmt/pull/775,
|
||
https://github.com/fmtlib/fmt/issues/779,
|
||
https://github.com/fmtlib/fmt/pull/780,
|
||
https://github.com/fmtlib/fmt/pull/790,
|
||
https://github.com/fmtlib/fmt/pull/792,
|
||
https://github.com/fmtlib/fmt/pull/800).
|
||
Thanks @Remotion, @gabime, @foonathan, @Dark-Passenger and @0x8000-0000.
|
||
|
||
# 5.0.0 - 2018-05-21
|
||
|
||
- Added a requirement for partial C++11 support, most importantly
|
||
variadic templates and type traits, and dropped `FMT_VARIADIC_*`
|
||
emulation macros. Variadic templates are available since GCC 4.4,
|
||
Clang 2.9 and MSVC 18.0 (2013). For older compilers use {fmt}
|
||
[version 4.x](https://github.com/fmtlib/fmt/releases/tag/4.1.0)
|
||
which continues to be maintained and works with C++98 compilers.
|
||
|
||
- Renamed symbols to follow standard C++ naming conventions and
|
||
proposed a subset of the library for standardization in [P0645R2
|
||
Text Formatting](https://wg21.link/P0645).
|
||
|
||
- Implemented `constexpr` parsing of format strings and [compile-time
|
||
format string
|
||
checks](https://fmt.dev/latest/api.html#compile-time-format-string-checks).
|
||
For example
|
||
|
||
```c++
|
||
#include <fmt/format.h>
|
||
|
||
std::string s = format(fmt("{:d}"), "foo");
|
||
```
|
||
|
||
gives a compile-time error because `d` is an invalid specifier for
|
||
strings ([godbolt](https://godbolt.org/g/rnCy9Q)):
|
||
|
||
...
|
||
<source>:4:19: note: in instantiation of function template specialization 'fmt::v5::format<S, char [4]>' requested here
|
||
std::string s = format(fmt("{:d}"), "foo");
|
||
^
|
||
format.h:1337:13: note: non-constexpr function 'on_error' cannot be used in a constant expression
|
||
handler.on_error("invalid type specifier");
|
||
|
||
Compile-time checks require relaxed `constexpr` (C++14 feature)
|
||
support. If the latter is not available, checks will be performed at
|
||
runtime.
|
||
|
||
- Separated format string parsing and formatting in the extension API
|
||
to enable compile-time format string processing. For example
|
||
|
||
```c++
|
||
struct Answer {};
|
||
|
||
namespace fmt {
|
||
template <>
|
||
struct formatter<Answer> {
|
||
constexpr auto parse(parse_context& ctx) {
|
||
auto it = ctx.begin();
|
||
spec = *it;
|
||
if (spec != 'd' && spec != 's')
|
||
throw format_error("invalid specifier");
|
||
return ++it;
|
||
}
|
||
|
||
template <typename FormatContext>
|
||
auto format(Answer, FormatContext& ctx) {
|
||
return spec == 's' ?
|
||
format_to(ctx.begin(), "{}", "fourty-two") :
|
||
format_to(ctx.begin(), "{}", 42);
|
||
}
|
||
|
||
char spec = 0;
|
||
};
|
||
}
|
||
|
||
std::string s = format(fmt("{:x}"), Answer());
|
||
```
|
||
|
||
gives a compile-time error due to invalid format specifier
|
||
([godbolt](https://godbolt.org/g/2jQ1Dv)):
|
||
|
||
...
|
||
<source>:12:45: error: expression '<throw-expression>' is not a constant expression
|
||
throw format_error("invalid specifier");
|
||
|
||
- Added [iterator
|
||
support](https://fmt.dev/latest/api.html#output-iterator-support):
|
||
|
||
```c++
|
||
#include <vector>
|
||
#include <fmt/format.h>
|
||
|
||
std::vector<char> out;
|
||
fmt::format_to(std::back_inserter(out), "{}", 42);
|
||
```
|
||
|
||
- Added the
|
||
[format_to_n](https://fmt.dev/latest/api.html#_CPPv2N3fmt11format_to_nE8OutputItNSt6size_tE11string_viewDpRK4Args)
|
||
function that restricts the output to the specified number of
|
||
characters (https://github.com/fmtlib/fmt/issues/298):
|
||
|
||
```c++
|
||
char out[4];
|
||
fmt::format_to_n(out, sizeof(out), "{}", 12345);
|
||
// out == "1234" (without terminating '\0')
|
||
```
|
||
|
||
- Added the [formatted_size](
|
||
https://fmt.dev/latest/api.html#_CPPv2N3fmt14formatted_sizeE11string_viewDpRK4Args)
|
||
function for computing the output size:
|
||
|
||
```c++
|
||
#include <fmt/format.h>
|
||
|
||
auto size = fmt::formatted_size("{}", 12345); // size == 5
|
||
```
|
||
|
||
- Improved compile times by reducing dependencies on standard headers
|
||
and providing a lightweight [core
|
||
API](https://fmt.dev/latest/api.html#core-api):
|
||
|
||
```c++
|
||
#include <fmt/core.h>
|
||
|
||
fmt::print("The answer is {}.", 42);
|
||
```
|
||
|
||
See [Compile time and code
|
||
bloat](https://github.com/fmtlib/fmt#compile-time-and-code-bloat).
|
||
|
||
- Added the [make_format_args](
|
||
https://fmt.dev/latest/api.html#_CPPv2N3fmt16make_format_argsEDpRK4Args)
|
||
function for capturing formatting arguments:
|
||
|
||
```c++
|
||
// Prints formatted error message.
|
||
void vreport_error(const char *format, fmt::format_args args) {
|
||
fmt::print("Error: ");
|
||
fmt::vprint(format, args);
|
||
}
|
||
template <typename... Args>
|
||
void report_error(const char *format, const Args & ... args) {
|
||
vreport_error(format, fmt::make_format_args(args...));
|
||
}
|
||
```
|
||
|
||
- Added the `make_printf_args` function for capturing `printf`
|
||
arguments (https://github.com/fmtlib/fmt/issues/687,
|
||
https://github.com/fmtlib/fmt/pull/694). Thanks @Kronuz.
|
||
|
||
- Added prefix `v` to non-variadic functions taking `format_args` to
|
||
distinguish them from variadic ones:
|
||
|
||
```c++
|
||
std::string vformat(string_view format_str, format_args args);
|
||
|
||
template <typename... Args>
|
||
std::string format(string_view format_str, const Args & ... args);
|
||
```
|
||
|
||
- Added experimental support for formatting ranges, containers and
|
||
tuple-like types in `fmt/ranges.h`
|
||
(https://github.com/fmtlib/fmt/pull/735):
|
||
|
||
```c++
|
||
#include <fmt/ranges.h>
|
||
|
||
std::vector<int> v = {1, 2, 3};
|
||
fmt::print("{}", v); // prints {1, 2, 3}
|
||
```
|
||
|
||
Thanks @Remotion.
|
||
|
||
- Implemented `wchar_t` date and time formatting
|
||
(https://github.com/fmtlib/fmt/pull/712):
|
||
|
||
```c++
|
||
#include <fmt/time.h>
|
||
|
||
std::time_t t = std::time(nullptr);
|
||
auto s = fmt::format(L"The date is {:%Y-%m-%d}.", *std::localtime(&t));
|
||
```
|
||
|
||
Thanks @DanielaE.
|
||
|
||
- Provided more wide string overloads
|
||
(https://github.com/fmtlib/fmt/pull/724). Thanks @DanielaE.
|
||
|
||
- Switched from a custom null-terminated string view class to
|
||
`string_view` in the format API and provided `fmt::string_view`
|
||
which implements a subset of `std::string_view` API for pre-C++17
|
||
systems.
|
||
|
||
- Added support for `std::experimental::string_view`
|
||
(https://github.com/fmtlib/fmt/pull/607):
|
||
|
||
```c++
|
||
#include <fmt/core.h>
|
||
#include <experimental/string_view>
|
||
|
||
fmt::print("{}", std::experimental::string_view("foo"));
|
||
```
|
||
|
||
Thanks @virgiliofornazin.
|
||
|
||
- Allowed mixing named and automatic arguments:
|
||
|
||
```c++
|
||
fmt::format("{} {two}", 1, fmt::arg("two", 2));
|
||
```
|
||
|
||
- Removed the write API in favor of the [format
|
||
API](https://fmt.dev/latest/api.html#format-api) with compile-time
|
||
handling of format strings.
|
||
|
||
- Disallowed formatting of multibyte strings into a wide character
|
||
target (https://github.com/fmtlib/fmt/pull/606).
|
||
|
||
- Improved documentation
|
||
(https://github.com/fmtlib/fmt/pull/515,
|
||
https://github.com/fmtlib/fmt/issues/614,
|
||
https://github.com/fmtlib/fmt/pull/617,
|
||
https://github.com/fmtlib/fmt/pull/661,
|
||
https://github.com/fmtlib/fmt/pull/680).
|
||
Thanks @ibell, @mihaitodor and @johnthagen.
|
||
|
||
- Implemented more efficient handling of large number of format
|
||
arguments.
|
||
|
||
- Introduced an inline namespace for symbol versioning.
|
||
|
||
- Added debug postfix `d` to the `fmt` library name
|
||
(https://github.com/fmtlib/fmt/issues/636).
|
||
|
||
- Removed unnecessary `fmt/` prefix in includes
|
||
(https://github.com/fmtlib/fmt/pull/397). Thanks @chronoxor.
|
||
|
||
- Moved `fmt/*.h` to `include/fmt/*.h` to prevent irrelevant files and
|
||
directories appearing on the include search paths when fmt is used
|
||
as a subproject and moved source files to the `src` directory.
|
||
|
||
- Added qmake project file `support/fmt.pro`
|
||
(https://github.com/fmtlib/fmt/pull/641). Thanks @cowo78.
|
||
|
||
- Added Gradle build file `support/build.gradle`
|
||
(https://github.com/fmtlib/fmt/pull/649). Thanks @luncliff.
|
||
|
||
- Removed `FMT_CPPFORMAT` CMake option.
|
||
|
||
- Fixed a name conflict with the macro `CHAR_WIDTH` in glibc
|
||
(https://github.com/fmtlib/fmt/pull/616). Thanks @aroig.
|
||
|
||
- Fixed handling of nested braces in `fmt::join`
|
||
(https://github.com/fmtlib/fmt/issues/638).
|
||
|
||
- Added `SOURCELINK_SUFFIX` for compatibility with Sphinx 1.5
|
||
(https://github.com/fmtlib/fmt/pull/497). Thanks @ginggs.
|
||
|
||
- Added a missing `inline` in the header-only mode
|
||
(https://github.com/fmtlib/fmt/pull/626). Thanks @aroig.
|
||
|
||
- Fixed various compiler warnings
|
||
(https://github.com/fmtlib/fmt/pull/640,
|
||
https://github.com/fmtlib/fmt/pull/656,
|
||
https://github.com/fmtlib/fmt/pull/679,
|
||
https://github.com/fmtlib/fmt/pull/681,
|
||
https://github.com/fmtlib/fmt/pull/705,
|
||
https://github.com/fmtlib/fmt/issues/715,
|
||
https://github.com/fmtlib/fmt/pull/717,
|
||
https://github.com/fmtlib/fmt/pull/720,
|
||
https://github.com/fmtlib/fmt/pull/723,
|
||
https://github.com/fmtlib/fmt/pull/726,
|
||
https://github.com/fmtlib/fmt/pull/730,
|
||
https://github.com/fmtlib/fmt/pull/739).
|
||
Thanks @peterbell10, @LarsGullik, @foonathan, @eliaskosunen,
|
||
@christianparpart, @DanielaE and @mwinterb.
|
||
|
||
- Worked around an MSVC bug and fixed several warnings
|
||
(https://github.com/fmtlib/fmt/pull/653). Thanks @alabuzhev.
|
||
|
||
- Worked around GCC bug 67371
|
||
(https://github.com/fmtlib/fmt/issues/682).
|
||
|
||
- Fixed compilation with `-fno-exceptions`
|
||
(https://github.com/fmtlib/fmt/pull/655). Thanks @chenxiaolong.
|
||
|
||
- Made `constexpr remove_prefix` gcc version check tighter
|
||
(https://github.com/fmtlib/fmt/issues/648).
|
||
|
||
- Renamed internal type enum constants to prevent collision with
|
||
poorly written C libraries
|
||
(https://github.com/fmtlib/fmt/issues/644).
|
||
|
||
- Added detection of `wostream operator<<`
|
||
(https://github.com/fmtlib/fmt/issues/650).
|
||
|
||
- Fixed compilation on OpenBSD
|
||
(https://github.com/fmtlib/fmt/pull/660). Thanks @hubslave.
|
||
|
||
- Fixed compilation on FreeBSD 12
|
||
(https://github.com/fmtlib/fmt/pull/732). Thanks @dankm.
|
||
|
||
- Fixed compilation when there is a mismatch between `-std` options
|
||
between the library and user code
|
||
(https://github.com/fmtlib/fmt/issues/664).
|
||
|
||
- Fixed compilation with GCC 7 and `-std=c++11`
|
||
(https://github.com/fmtlib/fmt/issues/734).
|
||
|
||
- Improved generated binary code on GCC 7 and older
|
||
(https://github.com/fmtlib/fmt/issues/668).
|
||
|
||
- Fixed handling of numeric alignment with no width
|
||
(https://github.com/fmtlib/fmt/issues/675).
|
||
|
||
- Fixed handling of empty strings in UTF8/16 converters
|
||
(https://github.com/fmtlib/fmt/pull/676). Thanks @vgalka-sl.
|
||
|
||
- Fixed formatting of an empty `string_view`
|
||
(https://github.com/fmtlib/fmt/issues/689).
|
||
|
||
- Fixed detection of `string_view` on libc++
|
||
(https://github.com/fmtlib/fmt/issues/686).
|
||
|
||
- Fixed DLL issues (https://github.com/fmtlib/fmt/pull/696).
|
||
Thanks @sebkoenig.
|
||
|
||
- Fixed compile checks for mixing narrow and wide strings
|
||
(https://github.com/fmtlib/fmt/issues/690).
|
||
|
||
- Disabled unsafe implicit conversion to `std::string`
|
||
(https://github.com/fmtlib/fmt/issues/729).
|
||
|
||
- Fixed handling of reused format specs (as in `fmt::join`) for
|
||
pointers (https://github.com/fmtlib/fmt/pull/725). Thanks @mwinterb.
|
||
|
||
- Fixed installation of `fmt/ranges.h`
|
||
(https://github.com/fmtlib/fmt/pull/738). Thanks @sv1990.
|
||
|
||
# 4.1.0 - 2017-12-20
|
||
|
||
- Added `fmt::to_wstring()` in addition to `fmt::to_string()`
|
||
(https://github.com/fmtlib/fmt/pull/559). Thanks @alabuzhev.
|
||
- Added support for C++17 `std::string_view`
|
||
(https://github.com/fmtlib/fmt/pull/571 and
|
||
https://github.com/fmtlib/fmt/pull/578).
|
||
Thanks @thelostt and @mwinterb.
|
||
- Enabled stream exceptions to catch errors
|
||
(https://github.com/fmtlib/fmt/issues/581). Thanks @crusader-mike.
|
||
- Allowed formatting of class hierarchies with `fmt::format_arg()`
|
||
(https://github.com/fmtlib/fmt/pull/547). Thanks @rollbear.
|
||
- Removed limitations on character types
|
||
(https://github.com/fmtlib/fmt/pull/563). Thanks @Yelnats321.
|
||
- Conditionally enabled use of `std::allocator_traits`
|
||
(https://github.com/fmtlib/fmt/pull/583). Thanks @mwinterb.
|
||
- Added support for `const` variadic member function emulation with
|
||
`FMT_VARIADIC_CONST`
|
||
(https://github.com/fmtlib/fmt/pull/591). Thanks @ludekvodicka.
|
||
- Various bugfixes: bad overflow check, unsupported implicit type
|
||
conversion when determining formatting function, test segfaults
|
||
(https://github.com/fmtlib/fmt/issues/551), ill-formed
|
||
macros (https://github.com/fmtlib/fmt/pull/542) and
|
||
ambiguous overloads
|
||
(https://github.com/fmtlib/fmt/issues/580). Thanks @xylosper.
|
||
- Prevented warnings on MSVC
|
||
(https://github.com/fmtlib/fmt/pull/605,
|
||
https://github.com/fmtlib/fmt/pull/602, and
|
||
https://github.com/fmtlib/fmt/pull/545), clang
|
||
(https://github.com/fmtlib/fmt/pull/582), GCC
|
||
(https://github.com/fmtlib/fmt/issues/573), various
|
||
conversion warnings (https://github.com/fmtlib/fmt/pull/609,
|
||
https://github.com/fmtlib/fmt/pull/567,
|
||
https://github.com/fmtlib/fmt/pull/553 and
|
||
https://github.com/fmtlib/fmt/pull/553), and added
|
||
`override` and `[[noreturn]]`
|
||
(https://github.com/fmtlib/fmt/pull/549 and
|
||
https://github.com/fmtlib/fmt/issues/555).
|
||
Thanks @alabuzhev, @virgiliofornazin, @alexanderbock, @yumetodo, @VaderY,
|
||
@jpcima, @thelostt and @Manu343726.
|
||
- Improved CMake: Used `GNUInstallDirs` to set installation location
|
||
(https://github.com/fmtlib/fmt/pull/610) and fixed warnings
|
||
(https://github.com/fmtlib/fmt/pull/536 and
|
||
https://github.com/fmtlib/fmt/pull/556).
|
||
Thanks @mikecrowe, @evgen231 and @henryiii.
|
||
|
||
# 4.0.0 - 2017-06-27
|
||
|
||
- Removed old compatibility headers `cppformat/*.h` and CMake options
|
||
(https://github.com/fmtlib/fmt/pull/527). Thanks @maddinat0r.
|
||
|
||
- Added `string.h` containing `fmt::to_string()` as alternative to
|
||
`std::to_string()` as well as other string writer functionality
|
||
(https://github.com/fmtlib/fmt/issues/326 and
|
||
https://github.com/fmtlib/fmt/pull/441):
|
||
|
||
```c++
|
||
#include "fmt/string.h"
|
||
|
||
std::string answer = fmt::to_string(42);
|
||
```
|
||
|
||
Thanks @glebov-andrey.
|
||
|
||
- Moved `fmt::printf()` to new `printf.h` header and allowed `%s` as
|
||
generic specifier (https://github.com/fmtlib/fmt/pull/453),
|
||
made `%.f` more conformant to regular `printf()`
|
||
(https://github.com/fmtlib/fmt/pull/490), added custom
|
||
writer support (https://github.com/fmtlib/fmt/issues/476)
|
||
and implemented missing custom argument formatting
|
||
(https://github.com/fmtlib/fmt/pull/339 and
|
||
https://github.com/fmtlib/fmt/pull/340):
|
||
|
||
```c++
|
||
#include "fmt/printf.h"
|
||
|
||
// %s format specifier can be used with any argument type.
|
||
fmt::printf("%s", 42);
|
||
```
|
||
|
||
Thanks @mojoBrendan, @manylegged and @spacemoose.
|
||
See also https://github.com/fmtlib/fmt/issues/360,
|
||
https://github.com/fmtlib/fmt/issues/335 and
|
||
https://github.com/fmtlib/fmt/issues/331.
|
||
|
||
- Added `container.h` containing a `BasicContainerWriter` to write to
|
||
containers like `std::vector`
|
||
(https://github.com/fmtlib/fmt/pull/450). Thanks @polyvertex.
|
||
|
||
- Added `fmt::join()` function that takes a range and formats its
|
||
elements separated by a given string
|
||
(https://github.com/fmtlib/fmt/pull/466):
|
||
|
||
```c++
|
||
#include "fmt/format.h"
|
||
|
||
std::vector<double> v = {1.2, 3.4, 5.6};
|
||
// Prints "(+01.20, +03.40, +05.60)".
|
||
fmt::print("({:+06.2f})", fmt::join(v.begin(), v.end(), ", "));
|
||
```
|
||
|
||
Thanks @olivier80.
|
||
|
||
- Added support for custom formatting specifications to simplify
|
||
customization of built-in formatting
|
||
(https://github.com/fmtlib/fmt/pull/444). Thanks @polyvertex.
|
||
See also https://github.com/fmtlib/fmt/issues/439.
|
||
|
||
- Added `fmt::format_system_error()` for error code formatting
|
||
(https://github.com/fmtlib/fmt/issues/323 and
|
||
https://github.com/fmtlib/fmt/pull/526). Thanks @maddinat0r.
|
||
|
||
- Added thread-safe `fmt::localtime()` and `fmt::gmtime()` as
|
||
replacement for the standard version to `time.h`
|
||
(https://github.com/fmtlib/fmt/pull/396). Thanks @codicodi.
|
||
|
||
- Internal improvements to `NamedArg` and `ArgLists`
|
||
(https://github.com/fmtlib/fmt/pull/389 and
|
||
https://github.com/fmtlib/fmt/pull/390). Thanks @chronoxor.
|
||
|
||
- Fixed crash due to bug in `FormatBuf`
|
||
(https://github.com/fmtlib/fmt/pull/493). Thanks @effzeh. See also
|
||
https://github.com/fmtlib/fmt/issues/480 and
|
||
https://github.com/fmtlib/fmt/issues/491.
|
||
|
||
- Fixed handling of wide strings in `fmt::StringWriter`.
|
||
|
||
- Improved compiler error messages
|
||
(https://github.com/fmtlib/fmt/issues/357).
|
||
|
||
- Fixed various warnings and issues with various compilers
|
||
(https://github.com/fmtlib/fmt/pull/494,
|
||
https://github.com/fmtlib/fmt/pull/499,
|
||
https://github.com/fmtlib/fmt/pull/483,
|
||
https://github.com/fmtlib/fmt/pull/485,
|
||
https://github.com/fmtlib/fmt/pull/482,
|
||
https://github.com/fmtlib/fmt/pull/475,
|
||
https://github.com/fmtlib/fmt/pull/473 and
|
||
https://github.com/fmtlib/fmt/pull/414).
|
||
Thanks @chronoxor, @zhaohuaxishi, @pkestene, @dschmidt and @0x414c.
|
||
|
||
- Improved CMake: targets are now namespaced
|
||
(https://github.com/fmtlib/fmt/pull/511 and
|
||
https://github.com/fmtlib/fmt/pull/513), supported
|
||
header-only `printf.h`
|
||
(https://github.com/fmtlib/fmt/pull/354), fixed issue with
|
||
minimal supported library subset
|
||
(https://github.com/fmtlib/fmt/issues/418,
|
||
https://github.com/fmtlib/fmt/pull/419 and
|
||
https://github.com/fmtlib/fmt/pull/420).
|
||
Thanks @bjoernthiel, @niosHD, @LogicalKnight and @alabuzhev.
|
||
|
||
- Improved documentation (https://github.com/fmtlib/fmt/pull/393).
|
||
Thanks @pwm1234.
|
||
|
||
# 3.0.2 - 2017-06-14
|
||
|
||
- Added `FMT_VERSION` macro
|
||
(https://github.com/fmtlib/fmt/issues/411).
|
||
- Used `FMT_NULL` instead of literal `0`
|
||
(https://github.com/fmtlib/fmt/pull/409). Thanks @alabuzhev.
|
||
- Added extern templates for `format_float`
|
||
(https://github.com/fmtlib/fmt/issues/413).
|
||
- Fixed implicit conversion issue
|
||
(https://github.com/fmtlib/fmt/issues/507).
|
||
- Fixed signbit detection
|
||
(https://github.com/fmtlib/fmt/issues/423).
|
||
- Fixed naming collision
|
||
(https://github.com/fmtlib/fmt/issues/425).
|
||
- Fixed missing intrinsic for C++/CLI
|
||
(https://github.com/fmtlib/fmt/pull/457). Thanks @calumr.
|
||
- Fixed Android detection
|
||
(https://github.com/fmtlib/fmt/pull/458). Thanks @Gachapen.
|
||
- Use lean `windows.h` if not in header-only mode
|
||
(https://github.com/fmtlib/fmt/pull/503). Thanks @Quentin01.
|
||
- Fixed issue with CMake exporting C++11 flag
|
||
(https://github.com/fmtlib/fmt/pull/455). Thanks @EricWF.
|
||
- Fixed issue with nvcc and MSVC compiler bug and MinGW
|
||
(https://github.com/fmtlib/fmt/issues/505).
|
||
- Fixed DLL issues (https://github.com/fmtlib/fmt/pull/469 and
|
||
https://github.com/fmtlib/fmt/pull/502).
|
||
Thanks @richardeakin and @AndreasSchoenle.
|
||
- Fixed test compilation under FreeBSD
|
||
(https://github.com/fmtlib/fmt/issues/433).
|
||
- Fixed various warnings
|
||
(https://github.com/fmtlib/fmt/pull/403,
|
||
https://github.com/fmtlib/fmt/pull/410 and
|
||
https://github.com/fmtlib/fmt/pull/510).
|
||
Thanks @Lecetem, @chenhayat and @trozen.
|
||
- Worked around a broken `__builtin_clz` in clang with MS codegen
|
||
(https://github.com/fmtlib/fmt/issues/519).
|
||
- Removed redundant include
|
||
(https://github.com/fmtlib/fmt/issues/479).
|
||
- Fixed documentation issues.
|
||
|
||
# 3.0.1 - 2016-11-01
|
||
|
||
- Fixed handling of thousands separator
|
||
(https://github.com/fmtlib/fmt/issues/353).
|
||
- Fixed handling of `unsigned char` strings
|
||
(https://github.com/fmtlib/fmt/issues/373).
|
||
- Corrected buffer growth when formatting time
|
||
(https://github.com/fmtlib/fmt/issues/367).
|
||
- Removed warnings under MSVC and clang
|
||
(https://github.com/fmtlib/fmt/issues/318,
|
||
https://github.com/fmtlib/fmt/issues/250, also merged
|
||
https://github.com/fmtlib/fmt/pull/385 and
|
||
https://github.com/fmtlib/fmt/pull/361).
|
||
Thanks @jcelerier and @nmoehrle.
|
||
- Fixed compilation issues under Android
|
||
(https://github.com/fmtlib/fmt/pull/327,
|
||
https://github.com/fmtlib/fmt/issues/345 and
|
||
https://github.com/fmtlib/fmt/pull/381), FreeBSD
|
||
(https://github.com/fmtlib/fmt/pull/358), Cygwin
|
||
(https://github.com/fmtlib/fmt/issues/388), MinGW
|
||
(https://github.com/fmtlib/fmt/issues/355) as well as other
|
||
issues (https://github.com/fmtlib/fmt/issues/350,
|
||
https://github.com/fmtlib/fmt/issues/355,
|
||
https://github.com/fmtlib/fmt/pull/348,
|
||
https://github.com/fmtlib/fmt/pull/402,
|
||
https://github.com/fmtlib/fmt/pull/405).
|
||
Thanks @dpantele, @hghwng, @arvedarved, @LogicalKnight and @JanHellwig.
|
||
- Fixed some documentation issues and extended specification
|
||
(https://github.com/fmtlib/fmt/issues/320,
|
||
https://github.com/fmtlib/fmt/pull/333,
|
||
https://github.com/fmtlib/fmt/issues/347,
|
||
https://github.com/fmtlib/fmt/pull/362). Thanks @smellman.
|
||
|
||
# 3.0.0 - 2016-05-07
|
||
|
||
- The project has been renamed from C++ Format (cppformat) to fmt for
|
||
consistency with the used namespace and macro prefix
|
||
(https://github.com/fmtlib/fmt/issues/307). Library headers
|
||
are now located in the `fmt` directory:
|
||
|
||
```c++
|
||
#include "fmt/format.h"
|
||
```
|
||
|
||
Including `format.h` from the `cppformat` directory is deprecated
|
||
but works via a proxy header which will be removed in the next major
|
||
version.
|
||
|
||
The documentation is now available at <https://fmt.dev>.
|
||
|
||
- Added support for
|
||
[strftime](http://en.cppreference.com/w/cpp/chrono/c/strftime)-like
|
||
[date and time
|
||
formatting](https://fmt.dev/3.0.0/api.html#date-and-time-formatting)
|
||
(https://github.com/fmtlib/fmt/issues/283):
|
||
|
||
```c++
|
||
#include "fmt/time.h"
|
||
|
||
std::time_t t = std::time(nullptr);
|
||
// Prints "The date is 2016-04-29." (with the current date)
|
||
fmt::print("The date is {:%Y-%m-%d}.", *std::localtime(&t));
|
||
```
|
||
|
||
- `std::ostream` support including formatting of user-defined types
|
||
that provide overloaded `operator<<` has been moved to
|
||
`fmt/ostream.h`:
|
||
|
||
```c++
|
||
#include "fmt/ostream.h"
|
||
|
||
class Date {
|
||
int year_, month_, day_;
|
||
public:
|
||
Date(int year, int month, int day) : year_(year), month_(month), day_(day) {}
|
||
|
||
friend std::ostream &operator<<(std::ostream &os, const Date &d) {
|
||
return os << d.year_ << '-' << d.month_ << '-' << d.day_;
|
||
}
|
||
};
|
||
|
||
std::string s = fmt::format("The date is {}", Date(2012, 12, 9));
|
||
// s == "The date is 2012-12-9"
|
||
```
|
||
|
||
- Added support for [custom argument
|
||
formatters](https://fmt.dev/3.0.0/api.html#argument-formatters)
|
||
(https://github.com/fmtlib/fmt/issues/235).
|
||
|
||
- Added support for locale-specific integer formatting with the `n`
|
||
specifier (https://github.com/fmtlib/fmt/issues/305):
|
||
|
||
```c++
|
||
std::setlocale(LC_ALL, "en_US.utf8");
|
||
fmt::print("cppformat: {:n}\n", 1234567); // prints 1,234,567
|
||
```
|
||
|
||
- Sign is now preserved when formatting an integer with an incorrect
|
||
`printf` format specifier
|
||
(https://github.com/fmtlib/fmt/issues/265):
|
||
|
||
```c++
|
||
fmt::printf("%lld", -42); // prints -42
|
||
```
|
||
|
||
Note that it would be an undefined behavior in `std::printf`.
|
||
|
||
- Length modifiers such as `ll` are now optional in printf formatting
|
||
functions and the correct type is determined automatically
|
||
(https://github.com/fmtlib/fmt/issues/255):
|
||
|
||
```c++
|
||
fmt::printf("%d", std::numeric_limits<long long>::max());
|
||
```
|
||
|
||
Note that it would be an undefined behavior in `std::printf`.
|
||
|
||
- Added initial support for custom formatters
|
||
(https://github.com/fmtlib/fmt/issues/231).
|
||
|
||
- Fixed detection of user-defined literal support on Intel C++
|
||
compiler (https://github.com/fmtlib/fmt/issues/311,
|
||
https://github.com/fmtlib/fmt/pull/312).
|
||
Thanks @dean0x7d and @speth.
|
||
|
||
- Reduced compile time
|
||
(https://github.com/fmtlib/fmt/pull/243,
|
||
https://github.com/fmtlib/fmt/pull/249,
|
||
https://github.com/fmtlib/fmt/issues/317):
|
||
|
||
|
||
|
||
|
||
|
||
Thanks @dean0x7d.
|
||
|
||
- Compile test fixes (https://github.com/fmtlib/fmt/pull/313).
|
||
Thanks @dean0x7d.
|
||
|
||
- Documentation fixes (https://github.com/fmtlib/fmt/pull/239,
|
||
https://github.com/fmtlib/fmt/issues/248,
|
||
https://github.com/fmtlib/fmt/issues/252,
|
||
https://github.com/fmtlib/fmt/pull/258,
|
||
https://github.com/fmtlib/fmt/issues/260,
|
||
https://github.com/fmtlib/fmt/issues/301,
|
||
https://github.com/fmtlib/fmt/pull/309).
|
||
Thanks @ReadmeCritic @Gachapen and @jwilk.
|
||
|
||
- Fixed compiler and sanitizer warnings
|
||
(https://github.com/fmtlib/fmt/issues/244,
|
||
https://github.com/fmtlib/fmt/pull/256,
|
||
https://github.com/fmtlib/fmt/pull/259,
|
||
https://github.com/fmtlib/fmt/issues/263,
|
||
https://github.com/fmtlib/fmt/issues/274,
|
||
https://github.com/fmtlib/fmt/pull/277,
|
||
https://github.com/fmtlib/fmt/pull/286,
|
||
https://github.com/fmtlib/fmt/issues/291,
|
||
https://github.com/fmtlib/fmt/issues/296,
|
||
https://github.com/fmtlib/fmt/issues/308).
|
||
Thanks @mwinterb, @pweiskircher and @Naios.
|
||
|
||
- Improved compatibility with Windows Store apps
|
||
(https://github.com/fmtlib/fmt/issues/280,
|
||
https://github.com/fmtlib/fmt/pull/285) Thanks @mwinterb.
|
||
|
||
- Added tests of compatibility with older C++ standards
|
||
(https://github.com/fmtlib/fmt/pull/273). Thanks @niosHD.
|
||
|
||
- Fixed Android build
|
||
(https://github.com/fmtlib/fmt/pull/271). Thanks @newnon.
|
||
|
||
- Changed `ArgMap` to be backed by a vector instead of a map.
|
||
(https://github.com/fmtlib/fmt/issues/261,
|
||
https://github.com/fmtlib/fmt/pull/262). Thanks @mwinterb.
|
||
|
||
- Added `fprintf` overload that writes to a `std::ostream`
|
||
(https://github.com/fmtlib/fmt/pull/251).
|
||
Thanks @nickhutchinson.
|
||
|
||
- Export symbols when building a Windows DLL
|
||
(https://github.com/fmtlib/fmt/pull/245).
|
||
Thanks @macdems.
|
||
|
||
- Fixed compilation on Cygwin
|
||
(https://github.com/fmtlib/fmt/issues/304).
|
||
|
||
- Implemented a workaround for a bug in Apple LLVM version 4.2 of
|
||
clang (https://github.com/fmtlib/fmt/issues/276).
|
||
|
||
- Implemented a workaround for Google Test bug
|
||
https://github.com/google/googletest/issues/705 on gcc 6
|
||
(https://github.com/fmtlib/fmt/issues/268). Thanks @octoploid.
|
||
|
||
- Removed Biicode support because the latter has been discontinued.
|
||
|
||
# 2.1.1 - 2016-04-11
|
||
|
||
- The install location for generated CMake files is now configurable
|
||
via the `FMT_CMAKE_DIR` CMake variable
|
||
(https://github.com/fmtlib/fmt/pull/299). Thanks @niosHD.
|
||
- Documentation fixes
|
||
(https://github.com/fmtlib/fmt/issues/252).
|
||
|
||
# 2.1.0 - 2016-03-21
|
||
|
||
- Project layout and build system improvements
|
||
(https://github.com/fmtlib/fmt/pull/267):
|
||
|
||
- The code have been moved to the `cppformat` directory. Including
|
||
`format.h` from the top-level directory is deprecated but works
|
||
via a proxy header which will be removed in the next major
|
||
version.
|
||
- C++ Format CMake targets now have proper interface definitions.
|
||
- Installed version of the library now supports the header-only
|
||
configuration.
|
||
- Targets `doc`, `install`, and `test` are now disabled if C++
|
||
Format is included as a CMake subproject. They can be enabled by
|
||
setting `FMT_DOC`, `FMT_INSTALL`, and `FMT_TEST` in the parent
|
||
project.
|
||
|
||
Thanks @niosHD.
|
||
|
||
# 2.0.1 - 2016-03-13
|
||
|
||
- Improved CMake find and package support
|
||
(https://github.com/fmtlib/fmt/issues/264). Thanks @niosHD.
|
||
- Fix compile error with Android NDK and mingw32
|
||
(https://github.com/fmtlib/fmt/issues/241). Thanks @Gachapen.
|
||
- Documentation fixes
|
||
(https://github.com/fmtlib/fmt/issues/248,
|
||
https://github.com/fmtlib/fmt/issues/260).
|
||
|
||
# 2.0.0 - 2015-12-01
|
||
|
||
## General
|
||
|
||
- \[Breaking\] Named arguments
|
||
(https://github.com/fmtlib/fmt/pull/169,
|
||
https://github.com/fmtlib/fmt/pull/173,
|
||
https://github.com/fmtlib/fmt/pull/174):
|
||
|
||
```c++
|
||
fmt::print("The answer is {answer}.", fmt::arg("answer", 42));
|
||
```
|
||
|
||
Thanks @jamboree.
|
||
|
||
- \[Experimental\] User-defined literals for format and named
|
||
arguments (https://github.com/fmtlib/fmt/pull/204,
|
||
https://github.com/fmtlib/fmt/pull/206,
|
||
https://github.com/fmtlib/fmt/pull/207):
|
||
|
||
```c++
|
||
using namespace fmt::literals;
|
||
fmt::print("The answer is {answer}.", "answer"_a=42);
|
||
```
|
||
|
||
Thanks @dean0x7d.
|
||
|
||
- \[Breaking\] Formatting of more than 16 arguments is now supported
|
||
when using variadic templates
|
||
(https://github.com/fmtlib/fmt/issues/141). Thanks @Shauren.
|
||
|
||
- Runtime width specification
|
||
(https://github.com/fmtlib/fmt/pull/168):
|
||
|
||
```c++
|
||
fmt::format("{0:{1}}", 42, 5); // gives " 42"
|
||
```
|
||
|
||
Thanks @jamboree.
|
||
|
||
- \[Breaking\] Enums are now formatted with an overloaded
|
||
`std::ostream` insertion operator (`operator<<`) if available
|
||
(https://github.com/fmtlib/fmt/issues/232).
|
||
|
||
- \[Breaking\] Changed default `bool` format to textual, \"true\" or
|
||
\"false\" (https://github.com/fmtlib/fmt/issues/170):
|
||
|
||
```c++
|
||
fmt::print("{}", true); // prints "true"
|
||
```
|
||
|
||
To print `bool` as a number use numeric format specifier such as
|
||
`d`:
|
||
|
||
```c++
|
||
fmt::print("{:d}", true); // prints "1"
|
||
```
|
||
|
||
- `fmt::printf` and `fmt::sprintf` now support formatting of `bool`
|
||
with the `%s` specifier giving textual output, \"true\" or \"false\"
|
||
(https://github.com/fmtlib/fmt/pull/223):
|
||
|
||
```c++
|
||
fmt::printf("%s", true); // prints "true"
|
||
```
|
||
|
||
Thanks @LarsGullik.
|
||
|
||
- \[Breaking\] `signed char` and `unsigned char` are now formatted as
|
||
integers by default
|
||
(https://github.com/fmtlib/fmt/pull/217).
|
||
|
||
- \[Breaking\] Pointers to C strings can now be formatted with the `p`
|
||
specifier (https://github.com/fmtlib/fmt/pull/223):
|
||
|
||
```c++
|
||
fmt::print("{:p}", "test"); // prints pointer value
|
||
```
|
||
|
||
Thanks @LarsGullik.
|
||
|
||
- \[Breaking\] `fmt::printf` and `fmt::sprintf` now print null
|
||
pointers as `(nil)` and null strings as `(null)` for consistency
|
||
with glibc (https://github.com/fmtlib/fmt/pull/226).
|
||
Thanks @LarsGullik.
|
||
|
||
- \[Breaking\] `fmt::(s)printf` now supports formatting of objects of
|
||
user-defined types that provide an overloaded `std::ostream`
|
||
insertion operator (`operator<<`)
|
||
(https://github.com/fmtlib/fmt/issues/201):
|
||
|
||
```c++
|
||
fmt::printf("The date is %s", Date(2012, 12, 9));
|
||
```
|
||
|
||
- \[Breaking\] The `Buffer` template is now part of the public API and
|
||
can be used to implement custom memory buffers
|
||
(https://github.com/fmtlib/fmt/issues/140). Thanks @polyvertex.
|
||
|
||
- \[Breaking\] Improved compatibility between `BasicStringRef` and
|
||
[std::experimental::basic_string_view](
|
||
http://en.cppreference.com/w/cpp/experimental/basic_string_view)
|
||
(https://github.com/fmtlib/fmt/issues/100,
|
||
https://github.com/fmtlib/fmt/issues/159,
|
||
https://github.com/fmtlib/fmt/issues/183):
|
||
|
||
- Comparison operators now compare string content, not pointers
|
||
- `BasicStringRef::c_str` replaced by `BasicStringRef::data`
|
||
- `BasicStringRef` is no longer assumed to be null-terminated
|
||
|
||
References to null-terminated strings are now represented by a new
|
||
class, `BasicCStringRef`.
|
||
|
||
- Dependency on pthreads introduced by Google Test is now optional
|
||
(https://github.com/fmtlib/fmt/issues/185).
|
||
|
||
- New CMake options `FMT_DOC`, `FMT_INSTALL` and `FMT_TEST` to control
|
||
generation of `doc`, `install` and `test` targets respectively, on
|
||
by default (https://github.com/fmtlib/fmt/issues/197,
|
||
https://github.com/fmtlib/fmt/issues/198,
|
||
https://github.com/fmtlib/fmt/issues/200). Thanks @maddinat0r.
|
||
|
||
- `noexcept` is now used when compiling with MSVC2015
|
||
(https://github.com/fmtlib/fmt/pull/215). Thanks @dmkrepo.
|
||
|
||
- Added an option to disable use of `windows.h` when
|
||
`FMT_USE_WINDOWS_H` is defined as 0 before including `format.h`
|
||
(https://github.com/fmtlib/fmt/issues/171). Thanks @alfps.
|
||
|
||
- \[Breaking\] `windows.h` is now included with `NOMINMAX` unless
|
||
`FMT_WIN_MINMAX` is defined. This is done to prevent breaking code
|
||
using `std::min` and `std::max` and only affects the header-only
|
||
configuration (https://github.com/fmtlib/fmt/issues/152,
|
||
https://github.com/fmtlib/fmt/pull/153,
|
||
https://github.com/fmtlib/fmt/pull/154). Thanks @DevO2012.
|
||
|
||
- Improved support for custom character types
|
||
(https://github.com/fmtlib/fmt/issues/171). Thanks @alfps.
|
||
|
||
- Added an option to disable use of IOStreams when `FMT_USE_IOSTREAMS`
|
||
is defined as 0 before including `format.h`
|
||
(https://github.com/fmtlib/fmt/issues/205,
|
||
https://github.com/fmtlib/fmt/pull/208). Thanks @JodiTheTigger.
|
||
|
||
- Improved detection of `isnan`, `isinf` and `signbit`.
|
||
|
||
## Optimization
|
||
|
||
- Made formatting of user-defined types more efficient with a custom
|
||
stream buffer (https://github.com/fmtlib/fmt/issues/92,
|
||
https://github.com/fmtlib/fmt/pull/230). Thanks @NotImplemented.
|
||
- Further improved performance of `fmt::Writer` on integer formatting
|
||
and fixed a minor regression. Now it is \~7% faster than
|
||
`karma::generate` on Karma\'s benchmark
|
||
(https://github.com/fmtlib/fmt/issues/186).
|
||
- \[Breaking\] Reduced [compiled code
|
||
size](https://github.com/fmtlib/fmt#compile-time-and-code-bloat)
|
||
(https://github.com/fmtlib/fmt/issues/143,
|
||
https://github.com/fmtlib/fmt/pull/149).
|
||
|
||
## Distribution
|
||
|
||
- \[Breaking\] Headers are now installed in
|
||
`${CMAKE_INSTALL_PREFIX}/include/cppformat`
|
||
(https://github.com/fmtlib/fmt/issues/178). Thanks @jackyf.
|
||
|
||
- \[Breaking\] Changed the library name from `format` to `cppformat`
|
||
for consistency with the project name and to avoid potential
|
||
conflicts (https://github.com/fmtlib/fmt/issues/178).
|
||
Thanks @jackyf.
|
||
|
||
- C++ Format is now available in [Debian](https://www.debian.org/)
|
||
GNU/Linux
|
||
([stretch](https://packages.debian.org/source/stretch/cppformat),
|
||
[sid](https://packages.debian.org/source/sid/cppformat)) and derived
|
||
distributions such as
|
||
[Ubuntu](https://launchpad.net/ubuntu/+source/cppformat) 15.10 and
|
||
later (https://github.com/fmtlib/fmt/issues/155):
|
||
|
||
$ sudo apt-get install libcppformat1-dev
|
||
|
||
Thanks @jackyf.
|
||
|
||
- [Packages for Fedora and
|
||
RHEL](https://admin.fedoraproject.org/pkgdb/package/cppformat/) are
|
||
now available. Thanks Dave Johansen.
|
||
|
||
- C++ Format can now be installed via [Homebrew](http://brew.sh/) on
|
||
OS X (https://github.com/fmtlib/fmt/issues/157):
|
||
|
||
$ brew install cppformat
|
||
|
||
Thanks @ortho and Anatoliy Bulukin.
|
||
|
||
## Documentation
|
||
|
||
- Migrated from ReadTheDocs to GitHub Pages for better responsiveness
|
||
and reliability (https://github.com/fmtlib/fmt/issues/128).
|
||
New documentation address is <http://cppformat.github.io/>.
|
||
- Added [Building thedocumentation](
|
||
https://fmt.dev/2.0.0/usage.html#building-the-documentation)
|
||
section to the documentation.
|
||
- Documentation build script is now compatible with Python 3 and newer
|
||
pip versions. (https://github.com/fmtlib/fmt/pull/189,
|
||
https://github.com/fmtlib/fmt/issues/209).
|
||
Thanks @JodiTheTigger and @xentec.
|
||
- Documentation fixes and improvements
|
||
(https://github.com/fmtlib/fmt/issues/36,
|
||
https://github.com/fmtlib/fmt/issues/75,
|
||
https://github.com/fmtlib/fmt/issues/125,
|
||
https://github.com/fmtlib/fmt/pull/160,
|
||
https://github.com/fmtlib/fmt/pull/161,
|
||
https://github.com/fmtlib/fmt/issues/162,
|
||
https://github.com/fmtlib/fmt/issues/165,
|
||
https://github.com/fmtlib/fmt/issues/210).
|
||
Thanks @syohex.
|
||
- Fixed out-of-tree documentation build
|
||
(https://github.com/fmtlib/fmt/issues/177). Thanks @jackyf.
|
||
|
||
## Fixes
|
||
|
||
- Fixed `initializer_list` detection
|
||
(https://github.com/fmtlib/fmt/issues/136). Thanks @Gachapen.
|
||
|
||
- \[Breaking\] Fixed formatting of enums with numeric format
|
||
specifiers in `fmt::(s)printf`
|
||
(https://github.com/fmtlib/fmt/issues/131,
|
||
https://github.com/fmtlib/fmt/issues/139):
|
||
|
||
```c++
|
||
enum { ANSWER = 42 };
|
||
fmt::printf("%d", ANSWER);
|
||
```
|
||
|
||
Thanks @Naios.
|
||
|
||
- Improved compatibility with old versions of MinGW
|
||
(https://github.com/fmtlib/fmt/issues/129,
|
||
https://github.com/fmtlib/fmt/pull/130,
|
||
https://github.com/fmtlib/fmt/issues/132). Thanks @cstamford.
|
||
|
||
- Fixed a compile error on MSVC with disabled exceptions
|
||
(https://github.com/fmtlib/fmt/issues/144).
|
||
|
||
- Added a workaround for broken implementation of variadic templates
|
||
in MSVC2012 (https://github.com/fmtlib/fmt/issues/148).
|
||
|
||
- Placed the anonymous namespace within `fmt` namespace for the
|
||
header-only configuration (https://github.com/fmtlib/fmt/issues/171).
|
||
Thanks @alfps.
|
||
|
||
- Fixed issues reported by Coverity Scan
|
||
(https://github.com/fmtlib/fmt/issues/187,
|
||
https://github.com/fmtlib/fmt/issues/192).
|
||
|
||
- Implemented a workaround for a name lookup bug in MSVC2010
|
||
(https://github.com/fmtlib/fmt/issues/188).
|
||
|
||
- Fixed compiler warnings
|
||
(https://github.com/fmtlib/fmt/issues/95,
|
||
https://github.com/fmtlib/fmt/issues/96,
|
||
https://github.com/fmtlib/fmt/pull/114,
|
||
https://github.com/fmtlib/fmt/issues/135,
|
||
https://github.com/fmtlib/fmt/issues/142,
|
||
https://github.com/fmtlib/fmt/issues/145,
|
||
https://github.com/fmtlib/fmt/issues/146,
|
||
https://github.com/fmtlib/fmt/issues/158,
|
||
https://github.com/fmtlib/fmt/issues/163,
|
||
https://github.com/fmtlib/fmt/issues/175,
|
||
https://github.com/fmtlib/fmt/issues/190,
|
||
https://github.com/fmtlib/fmt/pull/191,
|
||
https://github.com/fmtlib/fmt/issues/194,
|
||
https://github.com/fmtlib/fmt/pull/196,
|
||
https://github.com/fmtlib/fmt/issues/216,
|
||
https://github.com/fmtlib/fmt/pull/218,
|
||
https://github.com/fmtlib/fmt/pull/220,
|
||
https://github.com/fmtlib/fmt/pull/229,
|
||
https://github.com/fmtlib/fmt/issues/233,
|
||
https://github.com/fmtlib/fmt/issues/234,
|
||
https://github.com/fmtlib/fmt/pull/236,
|
||
https://github.com/fmtlib/fmt/issues/281,
|
||
https://github.com/fmtlib/fmt/issues/289).
|
||
Thanks @seanmiddleditch, @dixlorenz, @CarterLi, @Naios, @fmatthew5876,
|
||
@LevskiWeng, @rpopescu, @gabime, @cubicool, @jkflying, @LogicalKnight,
|
||
@inguin and @Jopie64.
|
||
|
||
- Fixed portability issues (mostly causing test failures) on ARM,
|
||
ppc64, ppc64le, s390x and SunOS 5.11 i386
|
||
(https://github.com/fmtlib/fmt/issues/138,
|
||
https://github.com/fmtlib/fmt/issues/179,
|
||
https://github.com/fmtlib/fmt/issues/180,
|
||
https://github.com/fmtlib/fmt/issues/202,
|
||
https://github.com/fmtlib/fmt/issues/225, [Red Hat Bugzilla
|
||
Bug 1260297](https://bugzilla.redhat.com/show_bug.cgi?id=1260297)).
|
||
Thanks @Naios, @jackyf and Dave Johansen.
|
||
|
||
- Fixed a name conflict with macro `free` defined in `crtdbg.h` when
|
||
`_CRTDBG_MAP_ALLOC` is set (https://github.com/fmtlib/fmt/issues/211).
|
||
|
||
- Fixed shared library build on OS X
|
||
(https://github.com/fmtlib/fmt/pull/212). Thanks @dean0x7d.
|
||
|
||
- Fixed an overload conflict on MSVC when `/Zc:wchar_t-` option is
|
||
specified (https://github.com/fmtlib/fmt/pull/214).
|
||
Thanks @slavanap.
|
||
|
||
- Improved compatibility with MSVC 2008
|
||
(https://github.com/fmtlib/fmt/pull/236). Thanks @Jopie64.
|
||
|
||
- Improved compatibility with bcc32
|
||
(https://github.com/fmtlib/fmt/issues/227).
|
||
|
||
- Fixed `static_assert` detection on Clang
|
||
(https://github.com/fmtlib/fmt/pull/228). Thanks @dean0x7d.
|
||
|
||
# 1.1.0 - 2015-03-06
|
||
|
||
- Added `BasicArrayWriter`, a class template that provides operations
|
||
for formatting and writing data into a fixed-size array
|
||
(https://github.com/fmtlib/fmt/issues/105 and
|
||
https://github.com/fmtlib/fmt/issues/122):
|
||
|
||
```c++
|
||
char buffer[100];
|
||
fmt::ArrayWriter w(buffer);
|
||
w.write("The answer is {}", 42);
|
||
```
|
||
|
||
- Added [0 A.D.](http://play0ad.com/) and [PenUltima Online
|
||
(POL)](http://www.polserver.com/) to the list of notable projects
|
||
using C++ Format.
|
||
|
||
- C++ Format now uses MSVC intrinsics for better formatting performance
|
||
(https://github.com/fmtlib/fmt/pull/115,
|
||
https://github.com/fmtlib/fmt/pull/116,
|
||
https://github.com/fmtlib/fmt/pull/118 and
|
||
https://github.com/fmtlib/fmt/pull/121). Previously these
|
||
optimizations where only used on GCC and Clang.
|
||
Thanks @CarterLi and @objectx.
|
||
|
||
- CMake install target
|
||
(https://github.com/fmtlib/fmt/pull/119). Thanks @TrentHouliston.
|
||
|
||
You can now install C++ Format with `make install` command.
|
||
|
||
- Improved [Biicode](http://www.biicode.com/) support
|
||
(https://github.com/fmtlib/fmt/pull/98 and
|
||
https://github.com/fmtlib/fmt/pull/104).
|
||
Thanks @MariadeAnton and @franramirez688.
|
||
|
||
- Improved support for building with [Android NDK](
|
||
https://developer.android.com/tools/sdk/ndk/index.html)
|
||
(https://github.com/fmtlib/fmt/pull/107). Thanks @newnon.
|
||
|
||
The [android-ndk-example](https://github.com/fmtlib/android-ndk-example)
|
||
repository provides and example of using C++ Format with Android NDK:
|
||
|
||
|
||
|
||
- Improved documentation of `SystemError` and `WindowsError`
|
||
(https://github.com/fmtlib/fmt/issues/54).
|
||
|
||
- Various code improvements
|
||
(https://github.com/fmtlib/fmt/pull/110,
|
||
https://github.com/fmtlib/fmt/pull/111
|
||
https://github.com/fmtlib/fmt/pull/112). Thanks @CarterLi.
|
||
|
||
- Improved compile-time errors when formatting wide into narrow
|
||
strings (https://github.com/fmtlib/fmt/issues/117).
|
||
|
||
- Fixed `BasicWriter::write` without formatting arguments when C++11
|
||
support is disabled
|
||
(https://github.com/fmtlib/fmt/issues/109).
|
||
|
||
- Fixed header-only build on OS X with GCC 4.9
|
||
(https://github.com/fmtlib/fmt/issues/124).
|
||
|
||
- Fixed packaging issues (https://github.com/fmtlib/fmt/issues/94).
|
||
|
||
- Added [changelog](https://github.com/fmtlib/fmt/blob/master/ChangeLog.md)
|
||
(https://github.com/fmtlib/fmt/issues/103).
|
||
|
||
# 1.0.0 - 2015-02-05
|
||
|
||
- Add support for a header-only configuration when `FMT_HEADER_ONLY`
|
||
is defined before including `format.h`:
|
||
|
||
```c++
|
||
#define FMT_HEADER_ONLY
|
||
#include "format.h"
|
||
```
|
||
|
||
- Compute string length in the constructor of `BasicStringRef` instead
|
||
of the `size` method
|
||
(https://github.com/fmtlib/fmt/issues/79). This eliminates
|
||
size computation for string literals on reasonable optimizing
|
||
compilers.
|
||
|
||
- Fix formatting of types with overloaded `operator <<` for
|
||
`std::wostream` (https://github.com/fmtlib/fmt/issues/86):
|
||
|
||
```c++
|
||
fmt::format(L"The date is {0}", Date(2012, 12, 9));
|
||
```
|
||
|
||
- Fix linkage of tests on Arch Linux
|
||
(https://github.com/fmtlib/fmt/issues/89).
|
||
|
||
- Allow precision specifier for non-float arguments
|
||
(https://github.com/fmtlib/fmt/issues/90):
|
||
|
||
```c++
|
||
fmt::print("{:.3}\n", "Carpet"); // prints "Car"
|
||
```
|
||
|
||
- Fix build on Android NDK (https://github.com/fmtlib/fmt/issues/93).
|
||
|
||
- Improvements to documentation build procedure.
|
||
|
||
- Remove `FMT_SHARED` CMake variable in favor of standard [BUILD_SHARED_LIBS](
|
||
http://www.cmake.org/cmake/help/v3.0/variable/BUILD_SHARED_LIBS.html).
|
||
|
||
- Fix error handling in `fmt::fprintf`.
|
||
|
||
- Fix a number of warnings.
|
||
|
||
# 0.12.0 - 2014-10-25
|
||
|
||
- \[Breaking\] Improved separation between formatting and buffer
|
||
management. `Writer` is now a base class that cannot be instantiated
|
||
directly. The new `MemoryWriter` class implements the default buffer
|
||
management with small allocations done on stack. So `fmt::Writer`
|
||
should be replaced with `fmt::MemoryWriter` in variable
|
||
declarations.
|
||
|
||
Old code:
|
||
|
||
```c++
|
||
fmt::Writer w;
|
||
```
|
||
|
||
New code:
|
||
|
||
```c++
|
||
fmt::MemoryWriter w;
|
||
```
|
||
|
||
If you pass `fmt::Writer` by reference, you can continue to do so:
|
||
|
||
```c++
|
||
void f(fmt::Writer &w);
|
||
```
|
||
|
||
This doesn\'t affect the formatting API.
|
||
|
||
- Support for custom memory allocators
|
||
(https://github.com/fmtlib/fmt/issues/69)
|
||
|
||
- Formatting functions now accept [signed char]{.title-ref} and
|
||
[unsigned char]{.title-ref} strings as arguments
|
||
(https://github.com/fmtlib/fmt/issues/73):
|
||
|
||
```c++
|
||
auto s = format("GLSL version: {}", glGetString(GL_VERSION));
|
||
```
|
||
|
||
- Reduced code bloat. According to the new [benchmark
|
||
results](https://github.com/fmtlib/fmt#compile-time-and-code-bloat),
|
||
cppformat is close to `printf` and by the order of magnitude better
|
||
than Boost Format in terms of compiled code size.
|
||
|
||
- Improved appearance of the documentation on mobile by using the
|
||
[Sphinx Bootstrap
|
||
theme](http://ryan-roemer.github.io/sphinx-bootstrap-theme/):
|
||
|
||
| Old | New |
|
||
| --- | --- |
|
||
|  |  |
|
||
|
||
# 0.11.0 - 2014-08-21
|
||
|
||
- Safe printf implementation with a POSIX extension for positional
|
||
arguments:
|
||
|
||
```c++
|
||
fmt::printf("Elapsed time: %.2f seconds", 1.23);
|
||
fmt::printf("%1$s, %3$d %2$s", weekday, month, day);
|
||
```
|
||
|
||
- Arguments of `char` type can now be formatted as integers (Issue
|
||
https://github.com/fmtlib/fmt/issues/55):
|
||
|
||
```c++
|
||
fmt::format("0x{0:02X}", 'a');
|
||
```
|
||
|
||
- Deprecated parts of the API removed.
|
||
|
||
- The library is now built and tested on MinGW with Appveyor in
|
||
addition to existing test platforms Linux/GCC, OS X/Clang,
|
||
Windows/MSVC.
|
||
|
||
# 0.10.0 - 2014-07-01
|
||
|
||
**Improved API**
|
||
|
||
- All formatting methods are now implemented as variadic functions
|
||
instead of using `operator<<` for feeding arbitrary arguments into a
|
||
temporary formatter object. This works both with C++11 where
|
||
variadic templates are used and with older standards where variadic
|
||
functions are emulated by providing lightweight wrapper functions
|
||
defined with the `FMT_VARIADIC` macro. You can use this macro for
|
||
defining your own portable variadic functions:
|
||
|
||
```c++
|
||
void report_error(const char *format, const fmt::ArgList &args) {
|
||
fmt::print("Error: {}");
|
||
fmt::print(format, args);
|
||
}
|
||
FMT_VARIADIC(void, report_error, const char *)
|
||
|
||
report_error("file not found: {}", path);
|
||
```
|
||
|
||
Apart from a more natural syntax, this also improves performance as
|
||
there is no need to construct temporary formatter objects and
|
||
control arguments\' lifetimes. Because the wrapper functions are
|
||
very lightweight, this doesn\'t cause code bloat even in pre-C++11
|
||
mode.
|
||
|
||
- Simplified common case of formatting an `std::string`. Now it
|
||
requires a single function call:
|
||
|
||
```c++
|
||
std::string s = format("The answer is {}.", 42);
|
||
```
|
||
|
||
Previously it required 2 function calls:
|
||
|
||
```c++
|
||
std::string s = str(Format("The answer is {}.") << 42);
|
||
```
|
||
|
||
Instead of unsafe `c_str` function, `fmt::Writer` should be used
|
||
directly to bypass creation of `std::string`:
|
||
|
||
```c++
|
||
fmt::Writer w;
|
||
w.write("The answer is {}.", 42);
|
||
w.c_str(); // returns a C string
|
||
```
|
||
|
||
This doesn\'t do dynamic memory allocation for small strings and is
|
||
less error prone as the lifetime of the string is the same as for
|
||
`std::string::c_str` which is well understood (hopefully).
|
||
|
||
- Improved consistency in naming functions that are a part of the
|
||
public API. Now all public functions are lowercase following the
|
||
standard library conventions. Previously it was a combination of
|
||
lowercase and CapitalizedWords. Issue
|
||
https://github.com/fmtlib/fmt/issues/50.
|
||
|
||
- Old functions are marked as deprecated and will be removed in the
|
||
next release.
|
||
|
||
**Other Changes**
|
||
|
||
- Experimental support for printf format specifications (work in
|
||
progress):
|
||
|
||
```c++
|
||
fmt::printf("The answer is %d.", 42);
|
||
std::string s = fmt::sprintf("Look, a %s!", "string");
|
||
```
|
||
|
||
- Support for hexadecimal floating point format specifiers `a` and
|
||
`A`:
|
||
|
||
```c++
|
||
print("{:a}", -42.0); // Prints -0x1.5p+5
|
||
print("{:A}", -42.0); // Prints -0X1.5P+5
|
||
```
|
||
|
||
- CMake option `FMT_SHARED` that specifies whether to build format as
|
||
a shared library (off by default).
|
||
|
||
# 0.9.0 - 2014-05-13
|
||
|
||
- More efficient implementation of variadic formatting functions.
|
||
|
||
- `Writer::Format` now has a variadic overload:
|
||
|
||
```c++
|
||
Writer out;
|
||
out.Format("Look, I'm {}!", "variadic");
|
||
```
|
||
|
||
- For efficiency and consistency with other overloads, variadic
|
||
overload of the `Format` function now returns `Writer` instead of
|
||
`std::string`. Use the `str` function to convert it to
|
||
`std::string`:
|
||
|
||
```c++
|
||
std::string s = str(Format("Look, I'm {}!", "variadic"));
|
||
```
|
||
|
||
- Replaced formatter actions with output sinks: `NoAction` -\>
|
||
`NullSink`, `Write` -\> `FileSink`, `ColorWriter` -\>
|
||
`ANSITerminalSink`. This improves naming consistency and shouldn\'t
|
||
affect client code unless these classes are used directly which
|
||
should be rarely needed.
|
||
|
||
- Added `ThrowSystemError` function that formats a message and throws
|
||
`SystemError` containing the formatted message and system-specific
|
||
error description. For example, the following code
|
||
|
||
```c++
|
||
FILE *f = fopen(filename, "r");
|
||
if (!f)
|
||
ThrowSystemError(errno, "Failed to open file '{}'") << filename;
|
||
```
|
||
|
||
will throw `SystemError` exception with description \"Failed to open
|
||
file \'\<filename\>\': No such file or directory\" if file doesn\'t
|
||
exist.
|
||
|
||
- Support for AppVeyor continuous integration platform.
|
||
|
||
- `Format` now throws `SystemError` in case of I/O errors.
|
||
|
||
- Improve test infrastructure. Print functions are now tested by
|
||
redirecting the output to a pipe.
|
||
|
||
# 0.8.0 - 2014-04-14
|
||
|
||
- Initial release
|