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auto template

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This commit is contained in:
terik23 2019-03-26 21:49:12 +05:00
parent c427fd71c1
commit 30618cd156
1 changed files with 10 additions and 10 deletions
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20
include/nameof.hpp
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@ -160,7 +160,7 @@ template <typename T>
#endif #endif
} }
template <typename E, E V> template <auto V>
[[nodiscard]] constexpr std::string_view nameof_enum_impl() noexcept { [[nodiscard]] constexpr std::string_view nameof_enum_impl() noexcept {
#if defined(__clang__) #if defined(__clang__)
std::string_view name{__PRETTY_FUNCTION__}; std::string_view name{__PRETTY_FUNCTION__};
@ -196,21 +196,21 @@ struct nameof_enum_impl_t final {
switch (value - V) { switch (value - V) {
case 0: case 0:
return nameof_enum_impl<E, static_cast<E>(V)>(); return nameof_enum_impl<static_cast<E>(V)>();
case 1: case 1:
return nameof_enum_impl<E, static_cast<E>(V + 1)>(); return nameof_enum_impl<static_cast<E>(V + 1)>();
case 2: case 2:
return nameof_enum_impl<E, static_cast<E>(V + 2)>(); return nameof_enum_impl<static_cast<E>(V + 2)>();
case 3: case 3:
return nameof_enum_impl<E, static_cast<E>(V + 3)>(); return nameof_enum_impl<static_cast<E>(V + 3)>();
case 4: case 4:
return nameof_enum_impl<E, static_cast<E>(V + 4)>(); return nameof_enum_impl<static_cast<E>(V + 4)>();
case 5: case 5:
return nameof_enum_impl<E, static_cast<E>(V + 5)>(); return nameof_enum_impl<static_cast<E>(V + 5)>();
case 6: case 6:
return nameof_enum_impl<E, static_cast<E>(V + 6)>(); return nameof_enum_impl<static_cast<E>(V + 6)>();
case 7: case 7:
return nameof_enum_impl<E, static_cast<E>(V + 7)>(); return nameof_enum_impl<static_cast<E>(V + 7)>();
default: default:
return nameof_enum_impl_t<E, V + 8>{}(value); return nameof_enum_impl_t<E, V + 8>{}(value);
} }
@ -246,7 +246,7 @@ template <typename T, typename = std::enable_if_t<std::is_enum_v<std::decay_t<T>
// nameof_enum used to obtain the simple (unqualified) string enum name of static storage enum variable. // nameof_enum used to obtain the simple (unqualified) string enum name of static storage enum variable.
template <auto V, typename = std::enable_if_t<std::is_enum_v<std::decay_t<decltype(V)>>>> template <auto V, typename = std::enable_if_t<std::is_enum_v<std::decay_t<decltype(V)>>>>
[[nodiscard]] constexpr std::string_view nameof_enum() noexcept { [[nodiscard]] constexpr std::string_view nameof_enum() noexcept {
return detail::nameof_enum_impl<decltype(V), V>(); return detail::nameof_enum_impl<V>();
} }
// nameof_type used to obtain the string name of type. // nameof_type used to obtain the string name of type.