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hashing: appending_hash: convert from enable_if to concepts

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A little simpler to understand.

Closes #8288
This commit is contained in:
Avi Kivity
2021-03-16 11:30:18 +02:00
committed by Pekka Enberg
parent 7961a28835
commit 1afd6fbe06
1 changed files with 5 additions and 3 deletions
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8
hashing.hh
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@@ -56,7 +56,7 @@ public:
static_assert(Hasher<hasher>);
template<typename T, typename Enable = void>
template<typename T>
struct appending_hash;
template<typename H, typename T, typename... Args>
@@ -67,7 +67,8 @@ void feed_hash(H& h, const T& value, Args&&... args) noexcept {
};
template<typename T>
struct appending_hash<T, std::enable_if_t<std::is_arithmetic<T>::value>> {
requires std::is_arithmetic_v<T>
struct appending_hash<T> {
template<typename H>
requires Hasher<H>
void operator()(H& h, T value) const noexcept {
@@ -86,7 +87,8 @@ struct appending_hash<bool> {
};
template<typename T>
struct appending_hash<T, std::enable_if_t<std::is_enum<T>::value>> {
requires std::is_enum_v<T>
struct appending_hash<T> {
template<typename H>
requires Hasher<H>
void operator()(H& h, const T& value) const noexcept {