projects
/
platform
/
upstream
/
gcc.git
/ blob
commit
grep
author
committer
pickaxe
?
search:
re
8ffb03e7c5e2ab762e43797c4a3a36057b28b770
[platform/upstream/gcc.git]
/
libiberty
/
ffs.c
1
/* ffs -- Find the first bit set in the parameter
2
3
NAME
4
ffs -- Find the first bit set in the parameter
5
6
SYNOPSIS
7
int ffs (int valu)
8
9
DESCRIPTION
10
Find the first bit set in the parameter. Bits are numbered from
11
right to left, starting with bit 1.
12
13
*/
14
15
int
16
ffs (valu)
17
register int valu;
18
{
19
register int bit;
20
21
if (valu == 0)
22
return 0;
23
24
for (bit = 1; !(valu & 1); bit++)
25
valu >>= 1;
26
27
return bit;
28
}
29