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deprecate _format UDL in code using FMT_DEPRECATED

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This commit is contained in:
Alexey Ochapov 2021-12-12 00:57:14 +03:00 committed by Victor Zverovich
parent c882790a2e
commit e46392ea2c
2 changed files with 19 additions and 1 deletions
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2
include/fmt/format.h
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@ -3056,7 +3056,7 @@ constexpr auto operator"" _a(const char* s, size_t) -> detail::udl_arg<char> {
using namespace fmt::literals;
std::string message = "The answer is {}"_format(42);
*/
constexpr auto operator"" _format(const char* s, size_t n)
FMT_DEPRECATED constexpr auto operator"" _format(const char* s, size_t n)
-> detail::udl_formatter<char> {
return {{s, n}};
}

18
test/format-test.cc
View File

@ -1761,6 +1761,21 @@ TEST(format_test, custom_format_compile_time_string) {
using namespace fmt::literals;
# if FMT_GCC_VERSION
# define FMT_CHECK_DEPRECATED_UDL_FORMAT 1
# elif FMT_CLANG_VERSION && defined(__has_warning)
# if __has_warning("-Wdeprecated-declarations")
# define FMT_CHECK_DEPRECATED_UDL_FORMAT 1
# endif
# endif
# ifndef FMT_CHECK_DEPRECATED_UDL_FORMAT
# define FMT_CHECK_DEPRECATED_UDL_FORMAT 0
# endif
# if FMT_CHECK_DEPRECATED_UDL_FORMAT
# pragma GCC diagnostic push
# pragma GCC diagnostic ignored "-Wdeprecated-declarations"
TEST(format_test, format_udl) {
EXPECT_EQ("{}c{}"_format("ab", 1), fmt::format("{}c{}", "ab", 1));
EXPECT_EQ("foo"_format(), "foo");
@ -1768,6 +1783,9 @@ TEST(format_test, format_udl) {
EXPECT_EQ("{}"_format(date(2015, 10, 21)), "2015-10-21");
}
# pragma GCC diagnostic pop
# endif
TEST(format_test, named_arg_udl) {
auto udl_a = fmt::format("{first}{second}{first}{third}", "first"_a = "abra",
"second"_a = "cad", "third"_a = 99);