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Reuse detail::string_literal in the chrono formatter

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Signed-off-by: Vladislav Shchapov <vladislav@shchapov.ru>
This commit is contained in:
Vladislav Shchapov 2022-07-30 11:25:10 +05:00 committed by Victor Zverovich
parent 6c9304b2c2
commit 36a25d75b4
3 changed files with 15 additions and 22 deletions
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15
include/fmt/chrono.h
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@ -2002,8 +2002,9 @@ template <typename Char, typename Duration>
struct formatter<std::chrono::time_point<std::chrono::system_clock, Duration>,
Char> : formatter<std::tm, Char> {
FMT_CONSTEXPR formatter() {
this->do_parse(default_specs,
default_specs + sizeof(default_specs) / sizeof(Char));
basic_string_view<Char> default_specs =
detail::string_literal<Char, '%', 'F', ' ', '%', 'T'>{};
this->do_parse(default_specs.begin(), default_specs.end());
}
template <typename FormatContext>
@ -2011,18 +2012,8 @@ struct formatter<std::chrono::time_point<std::chrono::system_clock, Duration>,
FormatContext& ctx) const -> decltype(ctx.out()) {
return formatter<std::tm, Char>::format(localtime(val), ctx);
}
// EDG frontend (Intel, NVHPC compilers) can't determine array length.
static constexpr const Char default_specs[5] = {'%', 'F', ' ', '%', 'T'};
};
#if FMT_CPLUSPLUS < 201703L
template <typename Char, typename Duration>
constexpr const Char
formatter<std::chrono::time_point<std::chrono::system_clock, Duration>,
Char>::default_specs[];
#endif
template <typename Char> struct formatter<std::tm, Char> {
private:
enum class spec {

12
include/fmt/format.h
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@ -249,6 +249,18 @@ FMT_CONSTEXPR inline void abort_fuzzing_if(bool condition) {
#endif
}
template <typename CharT, CharT... C> struct string_literal {
static constexpr CharT value[sizeof...(C)] = {C...};
constexpr operator basic_string_view<CharT>() const {
return {value, sizeof...(C)};
}
};
#if FMT_CPLUSPLUS < 201703L
template <typename CharT, CharT... C>
constexpr CharT string_literal<CharT, C...>::value[sizeof...(C)];
#endif
template <typename Streambuf> class formatbuf : public Streambuf {
private:
using char_type = typename Streambuf::char_type;

10
include/fmt/ranges.h
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@ -309,16 +309,6 @@ OutputIt write_range_entry(OutputIt out, const Arg& v) {
return write<Char>(out, v);
}
template <typename CharT, CharT... C> struct string_literal {
static constexpr CharT value[sizeof...(C)] = {C...};
constexpr operator basic_string_view<CharT>() const {
return {value, sizeof...(C)};
}
};
template <typename CharT, CharT... C>
constexpr CharT string_literal<CharT, C...>::value[sizeof...(C)];
} // namespace detail
template <typename T> struct is_tuple_like {