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#pragma once
#ifdef _MSC_VER
# define fm_FUNCTION_NAME __FUNCSIG__
#else
# define fm_FUNCTION_NAME __PRETTY_FUNCTION__
#endif
#define fm_begin(...) [&]{__VA_ARGS__}()
#define fm_DECLARE_DEPRECATED_COPY_ASSIGNMENT(type) \
[[deprecated, maybe_unused]] type(const type&) noexcept = default; \
[[deprecated, maybe_unused]] type& operator=(const type&) noexcept = default
#define fm_DECLARE_DEFAULT_COPY_ASSIGNMENT(type) \
[[maybe_unused]] constexpr type(const type&) noexcept = default; \
[[maybe_unused]] constexpr type& operator=(const type&) noexcept = default
#define fm_DECLARE_DEFAULT_COPY_ASSIGNMENT_(type) \
[[maybe_unused]] type(const type&) noexcept = default; \
[[maybe_unused]] type& operator=(const type&) noexcept = default
#define fm_DECLARE_DELETED_COPY_ASSIGNMENT(type) \
type(const type&) = delete; \
type& operator=(const type&) = delete
#define fm_DECLARE_DELETED_MOVE_ASSIGNMENT(type) \
type(type&&) = delete; \
type& operator=(type&&) = delete
#define fm_DECLARE_DEPRECATED_MOVE_ASSIGNMENT(type) \
[[deprecated, maybe_unused]] type(type&&) = default; \
[[deprecated, maybe_unused]] type& operator=(type&&) = default
#define fm_DECLARE_DEFAULT_MOVE_ASSIGNMENT(type) \
[[maybe_unused]] constexpr type(type&&) noexcept = default; \
[[maybe_unused]] constexpr type& operator=(type&&) noexcept = default
#define fm_DECLARE_DEFAULT_MOVE_ASSIGNMENT_(type) \
[[maybe_unused]] type(type&&) noexcept = default; \
[[maybe_unused]] type& operator=(type&&) noexcept = default
#define fm_DECLARE_DEFAULT_MOVE_COPY_ASSIGNMENTS(type) \
[[maybe_unused]] fm_DECLARE_DEFAULT_MOVE_ASSIGNMENT(type); \
[[maybe_unused]] fm_DECLARE_DEFAULT_COPY_ASSIGNMENT(type)
#define fm_DECLARE_DEFAULT_MOVE_COPY_ASSIGNMENTS_(type) \
[[maybe_unused]] fm_DECLARE_DEFAULT_MOVE_ASSIGNMENT_(type); \
[[maybe_unused]] fm_DECLARE_DEFAULT_COPY_ASSIGNMENT_(type)
#ifdef _MSC_VER
# define fm_noinline __declspec(noinline)
#else
# define fm_noinline __attribute__((noinline))
#endif
#ifdef _MSC_VER
// standard version not supported in MSVC v14x ABI
// see https://devblogs.microsoft.com/cppblog/msvc-cpp20-and-the-std-cpp20-switch/
#define fm_no_unique_address msvc::no_unique_address
#else
#define fm_no_unique_address no_unique_address
#endif
#ifdef _MSC_VER
#define fm_UNROLL _Pragma("loop(ivdep)")
#define fm_UNROLL_4 fm_UNROLL
#define fm_UNROLL_8 fm_UNROLL
#else
#ifndef __SIZEOF_POINTER__
#error "missing __SIZEOF_POINTER__"
#endif
#define fm_UNROLL_4 _Pragma("GCC unroll 4")
#define fm_UNROLL_8 _Pragma("GCC unroll 8")
#if __SIZEOF_POINTER__ >= 8
#define fm_UNROLL _Pragma("GCC unroll 8")
#else
#define fm_UNROLL _Pragma("GCC unroll 4")
#endif
#endif
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