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#pragma once
#if defined _MSC_VER
# define never_inline __declspec(noinline)
#else
# define never_inline __attribute__((noinline))
#endif
#if defined _MSC_VER
# define force_inline __forceinline
#else
# define force_inline __attribute__((always_inline))
#endif
#if !defined likely
# if defined __GNUC__
# define likely(x) __builtin_expect(!!(x),1)
# define unlikely(x) __builtin_expect(!!(x),0)
# else
# define likely(x) (x)
# define unlikely(x) (x)
# endif
#endif
#if defined _MSC_VER
# define function_name __FUNCSIG__
#else
# define function_name __PRETTY_FUNCTION__
#endif
#define PP_CAT(x,y) PP_CAT1(x,y)
#define PP_CAT1(x,y) x ## y
#define PP_EXPAND(x) PP_EXPAND2(x)
#define PP_EXPAND2(x) x
#ifdef _MSC_VER
# define unreachable() do { __assume(0); *(volatile int*)nullptr = 0; } while (0) /* NOLINT(clang-analyzer-core.NullDereference) */
#else
# define unreachable() do { __builtin_unreachable(); *(volatile int*)nullptr = 0; } while (0) /* NOLINT(clang-analyzer-core.NullDereference) */
#endif
#ifdef __cplusplus
# define progn(...) ([&]() -> decltype(auto) { __VA_ARGS__ }())
# define eval_once2(expr, ctr) eval_once3(expr, ctr)
# define eval_once3(expr, ctr) ([&] { [[maybe_unused]] static const char init_ ## ctr = ((void)(expr), 0); }())
# define eval_once(expr) eval_once2(expr, __COUNTER__)
#endif
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