70 lines
2.8 KiB
C++
70 lines
2.8 KiB
C++
/* vim: syntax=cpp */
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#pragma once
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#include "cstddef"
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namespace std {
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// storage allocation errors
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class bad_alloc;
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class bad_array_new_length;
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struct destroying_delete_t {
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explicit destroying_delete_t() = default;
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};
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inline constexpr destroying_delete_t destroying_delete{};
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// global operator new control
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enum class align_val_t : size_t {};
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struct nothrow_t { explicit nothrow_t() = default; };
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extern const nothrow_t nothrow;
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using new_handler = void (*)();
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new_handler get_new_handler() noexcept;
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new_handler set_new_handler(new_handler new_p) noexcept;
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// pointer optimization barrier
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template<class T> [[nodiscard]] constexpr T* launder(T* p) noexcept;
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// hardware interference size
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// inline constexpr size_t hardware_destructive_interference_size =
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// /* implementation-defined */;
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// inline constexpr size_t hardware_constructive_interference_size =
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// /* implementation-defined */;
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}
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// storage allocation and deallocation
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[[nodiscard]] void* operator new(std::size_t size);
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[[nodiscard]] void* operator new(std::size_t size, std::align_val_t alignment);
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[[nodiscard]] void* operator new(std::size_t size, const std::nothrow_t&) noexcept;
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[[nodiscard]] void* operator new(std::size_t size, std::align_val_t alignment,
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const std::nothrow_t&) noexcept;
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void operator delete(void* ptr) noexcept;
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void operator delete(void* ptr, std::size_t size) noexcept;
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void operator delete(void* ptr, std::align_val_t alignment) noexcept;
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void operator delete(void* ptr, std::size_t size, std::align_val_t alignment) noexcept;
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void operator delete(void* ptr, const std::nothrow_t&) noexcept;
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void operator delete(void* ptr, std::align_val_t alignment,
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const std::nothrow_t&) noexcept;
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[[nodiscard]] void* operator new[](std::size_t size);
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[[nodiscard]] void* operator new[](std::size_t size, std::align_val_t alignment);
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[[nodiscard]] void* operator new[](std::size_t size, const std::nothrow_t&) noexcept;
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[[nodiscard]] void* operator new[](std::size_t size, std::align_val_t alignment,
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const std::nothrow_t&) noexcept;
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void operator delete[](void* ptr) noexcept;
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void operator delete[](void* ptr, std::size_t size) noexcept;
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void operator delete[](void* ptr, std::align_val_t alignment) noexcept;
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void operator delete[](void* ptr, std::size_t size, std::align_val_t alignment) noexcept;
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void operator delete[](void* ptr, const std::nothrow_t&) noexcept;
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void operator delete[](void* ptr, std::align_val_t alignment,
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const std::nothrow_t&) noexcept;
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[[nodiscard]] void* operator new (std::size_t size, void* ptr) noexcept;
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[[nodiscard]] void* operator new[](std::size_t size, void* ptr) noexcept;
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void operator delete (void* ptr, void*) noexcept;
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void operator delete[](void* ptr, void*) noexcept;
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