mirror/fmt
1
0
Fork 0
mirror of https://github.com/fmtlib/fmt.git synced 2024-12-25 15:21:54 +00:00
Code Issues Packages Projects Releases Wiki Activity

Update README.rst

Browse Source
This commit is contained in:
Victor Zverovich 2018-03-09 15:44:46 -08:00 committed by GitHub
parent ca93be130a
commit 8fd7e30f37
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 11 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
README.rst
View File

@ -84,22 +84,22 @@ Format strings can be checked at compile time:
.. code:: c++
// test.cc
using namespace fmt::literals;
std::string s = "{2}"_format(42);
#include <fmt/format.h>
std::string s = fmt::format(fmt("{2}"), 42);
.. code::
$ g++ -Iinclude test.cc -std=c++14
...
test.cc:5:31: note: in instantiation of function template specialization
'fmt::internal::udl_formatter<char, '{', '2', '}'>::operator()<int>' requested
here
std::string s = "{2}"_format(42);
^
include/fmt/format.h:3838:7: note: non-constexpr function 'on_error' cannot be
used in a constant expression
on_error("argument index out of range");
^
test.cc:2:22: note: in instantiation of function template specialization 'fmt::format<S, int>' requested here
std::string s = fmt::format(fmt("{2}"), 42);
^
include/fmt/core.h:749:19: note: non-constexpr function 'on_error' cannot be used in a constant expression
ErrorHandler::on_error(message);
^
include/fmt/format.h:2081:16: note: in call to '&checker.context_->on_error(&"argument index out of range"[0])'
context_.on_error("argument index out of range");
^
{fmt} can be used as a safe portable replacement for ``itoa``: