Sign in
third-party-mirror
/
mingw-w64
/
b11319345b9004baf82a52c00cb6fa7cb97c3bcd
/
.
/
mingw-w64-crt
/
intrincs
/
bitscanfwd.c
blob: 350a8f929e69d4e56a6e9a959c6a22858b9f7a00 [
file
] [
log
] [
blame
]
#include
<intrin.h>
unsigned
char
_BitScanForward
(
unsigned
long
*
Index
,
unsigned
long
Mask
)
{
__asm__ __volatile__
(
"bsfl %1,%0"
:
"=r"
(
Mask
),
"=m"
((*(
volatile
long
*)
Index
)));
return
(
Mask
!=
0
);
}