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clean-up

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neargye 2022-03-31 18:19:58 +04:00
parent 5e6637ecde
commit 25d7f64dfb
1 changed files with 5 additions and 5 deletions
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10
include/magic_enum.hpp
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@ -727,19 +727,19 @@ struct constexpr_hash_t<Value, std::enable_if_t<std::is_same_v<Value, string_vie
0xbdbdf21cL, 0xcabac28aL, 0x53b39330L, 0x24b4a3a6L, 0xbad03605L, 0xcdd70693L, 0x54de5729L, 0x23d967bfL,
0xb3667a2eL, 0xc4614ab8L, 0x5d681b02L, 0x2a6f2b94L, 0xb40bbe37L, 0xc30c8ea1L, 0x5a05df1bL, 0x2d02ef8dL
};
constexpr std::uint32_t operator()(string_view val) const noexcept {
constexpr std::uint32_t operator()(string_view value) const noexcept {
auto crc = static_cast<std::uint32_t>(0xffffffffL);
for (const auto c : val) {
for (const auto c : value) {
crc = (crc >> 8) ^ crc_table[(crc ^ static_cast<std::uint32_t>(c)) & 0xff];
}
return crc ^ 0xffffffffL;
}
struct secondary_hash {
constexpr std::uint32_t operator()(string_view val) const noexcept {
constexpr std::uint32_t operator()(string_view value) const noexcept {
auto acc = static_cast<std::uint64_t>(2166136261ULL);
for (const auto v : val) {
acc = ((acc ^ static_cast<std::uint64_t>(v)) * static_cast<std::uint64_t>(16777619ULL)) & std::numeric_limits<std::uint32_t>::max();
for (const auto c : value) {
acc = ((acc ^ static_cast<std::uint64_t>(c)) * static_cast<std::uint64_t>(16777619ULL)) & std::numeric_limits<std::uint32_t>::max();
}
return static_cast<std::uint32_t>(acc);
}