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Improve forward using the idea from Jonathan Müller

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This commit is contained in:
Victor Zverovich 2022-07-07 16:48:17 -07:00
parent cc1926942f
commit b761f1279e
1 changed files with 4 additions and 4 deletions
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8
include/fmt/core.h
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@ -201,7 +201,7 @@
#endif
// An inline std::forward replacement.
#define FMT_FORWARD(T, value) static_cast<T&&>(value)
#define FMT_FORWARD(...) static_cast<decltype(__VA_ARGS__)&&>(__VA_ARGS__)
#ifdef _MSC_VER
# define FMT_UNCHECKED_ITERATOR(It) \
@ -1711,7 +1711,7 @@ constexpr auto encode_types() -> unsigned long long {
template <typename Context, typename T>
FMT_CONSTEXPR FMT_INLINE auto make_value(T&& val) -> value<Context> {
const auto& arg = arg_mapper<Context>().map(FMT_FORWARD(T, val));
const auto& arg = arg_mapper<Context>().map(FMT_FORWARD(val));
constexpr bool formattable_char =
!std::is_same<decltype(arg), const unformattable_char&>::value;
@ -1878,7 +1878,7 @@ class format_arg_store
data_{detail::make_arg<
is_packed, Context,
detail::mapped_type_constant<remove_cvref_t<T>, Context>::value>(
FMT_FORWARD(T, args))...} {
FMT_FORWARD(args))...} {
detail::init_named_args(data_.named_args(), 0, 0, args...);
}
};
@ -1894,7 +1894,7 @@ class format_arg_store
template <typename Context = format_context, typename... Args>
constexpr auto make_format_args(Args&&... args)
-> format_arg_store<Context, remove_cvref_t<Args>...> {
return {FMT_FORWARD(Args, args)...};
return {FMT_FORWARD(args)...};
}
/**