External/fmt
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fix formatted_size

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This commit is contained in:
Walter Gray 2020-11-30 11:02:28 -08:00
parent f76c64abe5
commit b75bd49b6c
2 changed files with 9 additions and 1 deletions
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8
include/fmt/core.h
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@ -1841,6 +1841,14 @@ inline auto format_to_n(OutputIt out, size_t n, const S& format_str,
Returns the number of characters in the output of Returns the number of characters in the output of
``format(format_str, args...)``. ``format(format_str, args...)``.
*/ */
template <typename S, typename... Args, FMT_ENABLE_IF(is_compile_string<S>::value)>
inline size_t formatted_size(const S& format_str, Args&&... args) {
const auto& vargs = fmt::make_args_checked<Args...>(format_str, args...);
detail::counting_buffer<> buf;
detail::vformat_to(buf, to_string_view(format_str), vargs);
return buf.count();
}
template <typename... Args> template <typename... Args>
inline size_t formatted_size(string_view format_str, Args&&... args) { inline size_t formatted_size(string_view format_str, Args&&... args) {
const auto& vargs = fmt::make_args_checked<Args...>(format_str, args...); const auto& vargs = fmt::make_args_checked<Args...>(format_str, args...);

2
test/enforce-compiletime-test.cc
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@ -157,7 +157,7 @@ TEST(FormatTest, OutputIterators) {
} }
TEST(FormatTest, FormattedSize) { TEST(FormatTest, FormattedSize) {
//EXPECT_EQ(2u, fmt::formatted_size(FMT_STRING("{}"), 42)); EXPECT_EQ(2u, fmt::formatted_size(FMT_STRING("{}"), 42));
} }
TEST(FormatTest, FormatTo) { TEST(FormatTest, FormatTo) {