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/*
* compiler_msc.h - definitions for the Microsoft C Compiler
*/
#include <stdint.h>
#include <stdlib.h> /* for _byteswap_*() */
#define LIBEXPORT __declspec(dllexport)
/*
* Old versions (e.g. VS2010) of MSC don't have the C99 header stdbool.h.
* Beware: the below replacement isn't fully standard, since normally any value
* != 0 should be implicitly cast to a bool with value 1... but that doesn't
* happen if bool is really just an 'int'.
*/
typedef int bool;
#define true 1
#define false 0
#define __bool_true_false_are_defined 1
/* Define ssize_t */
#ifdef _WIN64
typedef long long ssize_t;
#else
typedef int ssize_t;
#endif
/* Assume a little endian architecture with fast unaligned access */
#define CPU_IS_LITTLE_ENDIAN() 1
#define UNALIGNED_ACCESS_IS_FAST 1
/* __restrict has nonstandard behavior; don't use it */
#define restrict
/* ... but we can use __inline and __forceinline */
#define inline __inline
#define forceinline __forceinline
/* Byte swap functions */
#define bswap16 _byteswap_ushort
#define bswap32 _byteswap_ulong
#define bswap64 _byteswap_uint64
/* Bit scan functions (32-bit) */
static forceinline unsigned
bsr32(uint32_t n)
{
_BitScanReverse(&n, n);
return n;
}
#define bsr32 bsr32
static forceinline unsigned
bsf32(uint32_t n)
{
_BitScanForward(&n, n);
return n;
}
#define bsf32 bsf32
#ifdef _M_X64 /* Bit scan functions (64-bit) */
static forceinline unsigned
bsr64(uint64_t n)
{
_BitScanReverse64(&n, n);
return n;
}
#define bsr64 bsr64
static forceinline unsigned
bsf64(uint64_t n)
{
_BitScanForward64(&n, n);
return n;
}
#define bsf64 bsf64
#endif /* _M_X64 */
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