[redis.git] / deps / jemalloc / include / msvc_compat / strings.h

#ifndef strings_h
#define strings_h

/* MSVC doesn't define ffs/ffsl. This dummy strings.h header is provided
 * for both */
#include <intrin.h>
#pragma intrinsic(_BitScanForward)
static __forceinline int ffsl(long x)
{
	unsigned long i;

	if (_BitScanForward(&i, x))
		return (i + 1);
	return (0);
}

static __forceinline int ffs(int x)
{

	return (ffsl(x));
}

#endif
Commit	Line	Data
4934f93d	1	#ifndef strings_h
	2	#define strings_h
	3
	4	/* MSVC doesn't define ffs/ffsl. This dummy strings.h header is provided
	5	* for both */
	6	#include <intrin.h>
	7	#pragma intrinsic(_BitScanForward)
	8	static __forceinline int ffsl(long x)
	9	{
	10	unsigned long i;
	11
	12	if (_BitScanForward(&i, x))
	13	return (i + 1);
	14	return (0);
	15	}
	16
	17	static __forceinline int ffs(int x)
	18	{
	19
	20	return (ffsl(x));
	21	}
	22
	23	#endif