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enum_cast optimization

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This commit is contained in:
neargye 2022-11-07 23:14:24 +04:00
parent 099abc330a
commit f29ad727ba
1 changed files with 10 additions and 5 deletions
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15
include/magic_enum.hpp
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@ -261,7 +261,6 @@ constexpr string_view pretty_name(string_view name) noexcept {
(name[0] == '_'))) {
return name;
}
return {}; // Invalid name.
}
@ -1173,7 +1172,6 @@ template <typename E, detail::value_type VT>
if (check_value != 0 && check_value == static_cast<U>(value)) {
return name;
}
return {}; // Invalid value or out of range.
}
@ -1250,12 +1248,19 @@ template <typename E, detail::value_type VT = detail::value_type::default_value>
static_cast<D>(value),
detail::default_result_type_lambda<optional<D>>);
#else
for (std::size_t i = 0; i < detail::count_v<D>; ++i) {
if (value == static_cast<U>(enum_value<D>(i))) {
if constexpr (detail::is_sparse_v<D> || detail::is_flags_v<D>) {
for (std::size_t i = 0; i < detail::count_v<D>; ++i) {
if (value == static_cast<U>(enum_value<D>(i))) {
return static_cast<D>(value);
}
}
return {}; // Invalid value or out of range.
} else {
if (value >= detail::min_v<D> && value <= detail::max_v<D>) {
return static_cast<D>(value);
}
return {}; // Invalid value or out of range.
}
return {}; // Invalid value or out of range.
#endif
}
}