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resource_cache_iterator: operator==/operator<=>

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skypjack
2026-01-12 15:32:50 +01:00
parent 20f395ba36
commit 88e5fc2609
1 changed files with 13 additions and 36 deletions
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src/entt/resource/cache.hpp
+13 -36
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@@ -1,6 +1,7 @@
#ifndef ENTT_RESOURCE_RESOURCE_CACHE_HPP
#define ENTT_RESOURCE_RESOURCE_CACHE_HPP
#include <compare>
#include <cstddef>
#include <functional>
#include <iterator>
@@ -92,49 +93,25 @@ public:
return operator*();
}
template<typename... Lhs, typename... Rhs>
friend constexpr std::ptrdiff_t operator-(const resource_cache_iterator<Lhs...> &, const resource_cache_iterator<Rhs...> &) noexcept;
template<typename... Args>
[[nodiscard]] constexpr std::ptrdiff_t operator-(const resource_cache_iterator<Args...> &other) const noexcept {
return it - other.it;
}
template<typename... Lhs, typename... Rhs>
friend constexpr bool operator==(const resource_cache_iterator<Lhs...> &, const resource_cache_iterator<Rhs...> &) noexcept;
template<typename... Args>
[[nodiscard]] constexpr bool operator==(const resource_cache_iterator<Args...> &other) const noexcept {
return it == other.it;
}
template<typename... Lhs, typename... Rhs>
friend constexpr bool operator<(const resource_cache_iterator<Lhs...> &, const resource_cache_iterator<Rhs...> &) noexcept;
template<typename... Args>
[[nodiscard]] constexpr auto operator<=>(const resource_cache_iterator<Args...> &other) const noexcept {
return it <=> other.it;
}
private:
It it;
};
template<typename... Lhs, typename... Rhs>
[[nodiscard]] constexpr std::ptrdiff_t operator-(const resource_cache_iterator<Lhs...> &lhs, const resource_cache_iterator<Rhs...> &rhs) noexcept {
return lhs.it - rhs.it;
}
template<typename... Lhs, typename... Rhs>
[[nodiscard]] constexpr bool operator==(const resource_cache_iterator<Lhs...> &lhs, const resource_cache_iterator<Rhs...> &rhs) noexcept {
return lhs.it == rhs.it;
}
template<typename... Lhs, typename... Rhs>
[[nodiscard]] constexpr bool operator<(const resource_cache_iterator<Lhs...> &lhs, const resource_cache_iterator<Rhs...> &rhs) noexcept {
return lhs.it < rhs.it;
}
template<typename... Lhs, typename... Rhs>
[[nodiscard]] constexpr bool operator>(const resource_cache_iterator<Lhs...> &lhs, const resource_cache_iterator<Rhs...> &rhs) noexcept {
return rhs < lhs;
}
template<typename... Lhs, typename... Rhs>
[[nodiscard]] constexpr bool operator<=(const resource_cache_iterator<Lhs...> &lhs, const resource_cache_iterator<Rhs...> &rhs) noexcept {
return !(lhs > rhs);
}
template<typename... Lhs, typename... Rhs>
[[nodiscard]] constexpr bool operator>=(const resource_cache_iterator<Lhs...> &lhs, const resource_cache_iterator<Rhs...> &rhs) noexcept {
return !(lhs < rhs);
}
} // namespace internal
/*! @endcond */