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remove strict enum_name

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neargye 2020-08-16 15:16:15 +05:00
parent 9c40cae91a
commit 971a548693
2 changed files with 14 additions and 64 deletions
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36
include/magic_enum.hpp
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@ -876,34 +876,26 @@ template <typename E>
// Returns string name from enum-flags value.
// If enum-flags value does not have name or value out of range, returns empty string.
template <typename E, bool Strict = false>
[[nodiscard]] constexpr auto enum_name(E value) -> detail::enable_if_enum_flags_t<E, std::conditional_t<Strict, std::string_view, std::string>> {
template <typename E>
[[nodiscard]] auto enum_name(E value) -> detail::enable_if_enum_flags_t<E, std::string> {
using D = std::decay_t<E>;
using U = underlying_type_t<D>;
if constexpr (Strict) {
for (std::size_t i = 0; i < detail::count_v<D, true>; ++i) {
if (enum_value<D>(i) == value) {
return detail::names_v<D, true>[i];
}
}
} else {
std::string name;
auto check_value = U{0};
for (std::size_t i = 0; i < detail::count_v<D, true>; ++i) {
if (const auto v = enum_value<D>(i); (static_cast<U>(value) & static_cast<U>(v)) != 0) {
check_value |= static_cast<U>(v);
const auto n = detail::names_v<D, true>[i];
if (!name.empty()) {
name.append(1, '|');
}
name.append(n.data(), n.size());
std::string name;
auto check_value = U{0};
for (std::size_t i = 0; i < detail::count_v<D, true>; ++i) {
if (const auto v = enum_value<D>(i); (static_cast<U>(value) & static_cast<U>(v)) != 0) {
check_value |= static_cast<U>(v);
const auto n = detail::names_v<D, true>[i];
if (!name.empty()) {
name.append(1, '|');
}
name.append(n.data(), n.size());
}
}
if (check_value == static_cast<U>(value)) {
return name;
}
if (check_value == static_cast<U>(value)) {
return name;
}
return {}; // Invalid value or out of range.