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Make is_constructible public (#918)

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This commit is contained in:
Victor Zverovich
2018-10-27 17:10:19 -07:00
parent 4373153800
commit ccd3e8bbf3
3 changed files with 50 additions and 49 deletions
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20
include/fmt/core.h
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@@ -208,14 +208,6 @@ FMT_CONSTEXPR typename std::make_unsigned<Int>::type to_unsigned(Int value) {
return static_cast<typename std::make_unsigned<Int>::type>(value);
}
#if FMT_GCC_VERSION && FMT_GCC_VERSION < 405
template <typename... T>
struct is_constructible: std::false_type {};
#else
template <typename... T>
struct is_constructible : std::is_constructible<T...> {};
#endif
/** A contiguous memory buffer with an optional growing ability. */
template <typename T>
class basic_buffer {
@@ -337,6 +329,14 @@ template <typename T>
struct no_formatter_error : std::false_type {};
} // namespace internal
#if FMT_GCC_VERSION && FMT_GCC_VERSION < 405
template <typename... T>
struct is_constructible: std::false_type {};
#else
template <typename... T>
struct is_constructible : std::is_constructible<T...> {};
#endif
/**
An implementation of ``std::basic_string_view`` for pre-C++17. It provides a
subset of the API. ``fmt::basic_string_view`` is used for format strings even
@@ -725,7 +725,7 @@ inline typename std::enable_if<
template <typename C, typename T, typename Char = typename C::char_type>
inline typename std::enable_if<
internal::is_constructible<basic_string_view<Char>, T>::value &&
is_constructible<basic_string_view<Char>, T>::value &&
!internal::is_string<T>::value,
init<C, basic_string_view<Char>, string_type>>::type
make_value(const T &val) { return basic_string_view<Char>(val); }
@@ -734,7 +734,7 @@ template <typename C, typename T, typename Char = typename C::char_type>
inline typename std::enable_if<
!convert_to_int<T, Char>::value && !std::is_same<T, Char>::value &&
!std::is_convertible<T, basic_string_view<Char>>::value &&
!internal::is_constructible<basic_string_view<Char>, T>::value &&
!is_constructible<basic_string_view<Char>, T>::value &&
!internal::is_string<T>::value,
// Implicit conversion to std::string is not handled here because it's
// unsafe: https://github.com/fmtlib/fmt/issues/729