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#2954: As workaround for older MSVC compilers split formatter<std::filesystem::path> partial template specialization into two explicit specialization.

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This commit is contained in:
Daniel Krügler 2022-07-02 19:04:15 +02:00
parent 09f52a0007
commit 81010369d0
1 changed files with 28 additions and 0 deletions
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28
include/fmt/std.h
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@ -57,6 +57,7 @@ inline void write_escaped_path<std::filesystem::path::value_type>(
} // namespace detail } // namespace detail
#if !FMT_MSC_VERSION || FMT_MSC_VERSION >= 1920
template <typename Char> template <typename Char>
struct formatter<std::filesystem::path, Char> struct formatter<std::filesystem::path, Char>
: formatter<basic_string_view<Char>> { : formatter<basic_string_view<Char>> {
@ -69,6 +70,33 @@ struct formatter<std::filesystem::path, Char>
basic_string_view<Char>(quoted.data(), quoted.size()), ctx); basic_string_view<Char>(quoted.data(), quoted.size()), ctx);
} }
}; };
#else
// Workaround for MSVC 2017 and earlier.
template <>
struct formatter<std::filesystem::path, char>
: formatter<basic_string_view<char>> {
template <typename FormatContext>
auto format(const std::filesystem::path& p, FormatContext& ctx) const ->
typename FormatContext::iterator {
basic_memory_buffer<char> quoted;
detail::write_escaped_path(quoted, p);
return formatter<basic_string_view<char>>::format(
basic_string_view<char>(quoted.data(), quoted.size()), ctx);
}
};
template <>
struct formatter<std::filesystem::path, wchar_t>
: formatter<basic_string_view<wchar_t>> {
template <typename FormatContext>
auto format(const std::filesystem::path& p, FormatContext& ctx) const ->
typename FormatContext::iterator {
basic_memory_buffer<wchar_t> quoted;
detail::write_escaped_path(quoted, p);
return formatter<basic_string_view<wchar_t>>::format(
basic_string_view<wchar_t>(quoted.data(), quoted.size()), ctx);
}
};
#endif
FMT_END_NAMESPACE FMT_END_NAMESPACE
#endif #endif