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remove std:: from optionals to enable again MAGIC_ENUM_USING_ALIAS_OPTIONAL (#154)

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Bela Schaum 2022-03-05 20:56:17 +01:00 • committed by GitHub
parent ca89c5425b
commit 8267d2860b
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1 changed files with 4 additions and 4 deletions
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8
include/magic_enum.hpp
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@ -914,23 +914,23 @@ template <typename E, typename BinaryPredicate = std::equal_to<char>>
namespace fusion_detail {
template <typename E>
constexpr std::optional<std::uintmax_t> fuse_one_enum(std::optional<std::uintmax_t> hash, E value) noexcept {
constexpr optional<std::uintmax_t> fuse_one_enum(optional<std::uintmax_t> hash, E value) noexcept {
if (hash.has_value()) {
if (const auto index = enum_index(value); index.has_value()) {
// Add 1 to prevent matching 2D fusions with 3D fusions etc.
return (hash.value() << detail::log2(enum_count<E>() + 1)) | (index.value() + 1);
}
}
return std::nullopt;
return {};
}
template <typename E>
constexpr std::optional<std::uintmax_t> fuse_enum(E value) noexcept {
constexpr optional<std::uintmax_t> fuse_enum(E value) noexcept {
return fuse_one_enum(0, value);
}
template <typename E, typename... Es>
constexpr std::optional<std::uintmax_t> fuse_enum(E head, Es... tail) noexcept {
constexpr optional<std::uintmax_t> fuse_enum(E head, Es... tail) noexcept {
return fuse_one_enum(fuse_enum(tail...), head);
}