#ifndef JEMALLOC_INTERNAL_UTIL_H

#define JEMALLOC_INTERNAL_UTIL_H

#define UTIL_INLINE static inline

/* Junk fill patterns. */

#ifndef JEMALLOC_ALLOC_JUNK

#  define JEMALLOC_ALLOC_JUNK	((uint8_t)0xa5)

#endif

#ifndef JEMALLOC_FREE_JUNK

#  define JEMALLOC_FREE_JUNK	((uint8_t)0x5a)

#endif

/*

 * Wrap a cpp argument that contains commas such that it isn't broken up into

 * multiple arguments.

 */

#define JEMALLOC_ARG_CONCAT(...) __VA_ARGS__

/* cpp macro definition stringification. */

#define STRINGIFY_HELPER(x) #x

#define STRINGIFY(x) STRINGIFY_HELPER(x)

/*

 * Silence compiler warnings due to uninitialized values.  This is used

 * wherever the compiler fails to recognize that the variable is never used

 * uninitialized.

 */

#define JEMALLOC_CC_SILENCE_INIT(v) = v

#ifdef __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

#if !defined(JEMALLOC_INTERNAL_UNREACHABLE)

#  error JEMALLOC_INTERNAL_UNREACHABLE should have been defined by configure

#endif

#define unreachable() JEMALLOC_INTERNAL_UNREACHABLE()

/* Set error code. */

UTIL_INLINE void

set_errno(int errnum) {

#ifdef _WIN32

	SetLastError(errnum);

#else

	errno = errnum;

#endif

}

/* Get last error code. */

UTIL_INLINE int

get_errno(void) {

#ifdef _WIN32

	return GetLastError();

#else

	return errno;

#endif

}

#undef UTIL_INLINE

#endif /* JEMALLOC_INTERNAL_UTIL_H */