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Add conditional_t for pre-C++14

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Victor Zverovich
2019-06-04 18:50:30 -07:00
parent 4aa0dc578b
commit c264e641ea
6 changed files with 36 additions and 40 deletions
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11
include/fmt/format.h
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@@ -698,8 +698,8 @@ FMT_CONSTEXPR bool is_negative(T) {
template <typename T> struct int_traits {
// Smallest of uint32_t and uint64_t that is large enough to represent
// all values of T.
typedef typename std::conditional<std::numeric_limits<T>::digits <= 32,
uint32_t, uint64_t>::type main_type;
using main_type =
conditional_t<std::numeric_limits<T>::digits <= 32, uint32_t, uint64_t>;
};
// Static data is placed in this class template to allow header-only
@@ -2181,9 +2181,10 @@ FMT_CONSTEXPR const typename ParseContext::char_type* parse_format_specs(
ParseContext& ctx) {
// GCC 7.2 requires initializer.
typedef typename ParseContext::char_type char_type;
typename std::conditional<is_formattable<T, format_context>::value,
formatter<T, char_type>,
internal::fallback_formatter<T, char_type>>::type f;
conditional_t<is_formattable<T, format_context>::value,
formatter<T, char_type>,
internal::fallback_formatter<T, char_type>>
f;
return f.parse(ctx);
}