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Add conditional_t for pre-C++14

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This commit is contained in:
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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include/fmt/prepare.h
+4 -6
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@@ -440,9 +440,8 @@ template <typename Format> class compiletime_prepared_parts_type_provider {
typedef format_part<char_type> value_type;
};
typedef typename std::conditional<static_cast<bool>(number_of_format_parts),
format_parts_array<number_of_format_parts>,
empty>::type type;
using type = conditional_t<static_cast<bool>(number_of_format_parts),
format_parts_array<number_of_format_parts>, empty>;
};
template <typename Parts> class compiletime_prepared_parts_collector {
@@ -674,9 +673,8 @@ struct compiletime_format_tag {};
struct runtime_format_tag {};
template <typename Format> struct format_tag {
typedef typename std::conditional<is_compile_string<Format>::value,
compiletime_format_tag,
runtime_format_tag>::type type;
using type = conditional_t<is_compile_string<Format>::value,
compiletime_format_tag, runtime_format_tag>;
};
#if FMT_USE_CONSTEXPR