選択できるのは25トピックまでです。
トピックは、先頭が英数字で、英数字とダッシュ('-')を使用した35文字以内のものにしてください。
72 行
2.0 KiB
72 行
2.0 KiB
#pragma once
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#include <cstdint>
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#include <cstddef>
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#include <cstdlib>
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#include <type_traits>
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namespace gp_config{
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namespace memory_module{
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enum class memory_mode_t{
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other,
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clib,
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buffer,
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arena_buffer
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};
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constexpr memory_mode_t memory_mode = memory_mode_t::clib;
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template<memory_mode_t T = memory_mode_t::other>
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constexpr void*(*memory_allocator)(std::size_t)=nullptr;
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template<memory_mode_t T = memory_mode_t::other>
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constexpr void(*memory_deallocator)(void*)=nullptr;
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// C Standard library memory usage
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template<>
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constexpr void*(*memory_allocator<memory_mode_t::clib>)(std::size_t) = malloc;
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template<>
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constexpr void(*memory_deallocator<memory_mode_t::clib>)(void*) = free;
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// Buffer memory usage only
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template<>
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constexpr void*(*memory_allocator<memory_mode_t::buffer>)(std::size_t) = nullptr;
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template<>
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constexpr void(*memory_deallocator<memory_mode_t::buffer>)(void*) = nullptr;
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// Buffer of arena memory usage
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template<>
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constexpr void*(*memory_allocator<memory_mode_t::arena_buffer>)(std::size_t) = nullptr;
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template<>
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constexpr void(*memory_deallocator<memory_mode_t::arena_buffer>)(void*) = nullptr;
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constexpr bool is_ok =
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( memory_allocator<memory_mode> != nullptr )
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&& ( memory_deallocator<memory_mode> != nullptr );
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}
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constexpr bool has_exceptions = true;
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constexpr bool has_buffer_bounds = true;
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// Value of 8 is considered not cryptographically secure
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// Value of 12 offers a good compromise of performance and robustness
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// Value of 20 offers maximum robustness
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constexpr size_t arc4random_strength = 20;
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struct assert_failure{
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assert_failure(const char* reason)
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: what_str{reason}
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{}
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const char* what_str;
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const char* what() {return what_str;}
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};
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constexpr size_t assert_buffer_size = 0;
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constexpr auto assertion = [](bool pred, const char* reason) -> void{
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if constexpr (has_exceptions)
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if(!pred) throw assert_failure(reason);
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};
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}
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enum class gp_errorcodes : int {
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infinite_skipstone = 3000
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};
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