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* as.h (alloca): Don't declare if __GNUC__. Remove an old comment.
[binutils.git]
/
libiberty
/
ffs.c
blob
8ffb03e7c5e2ab762e43797c4a3a36057b28b770
1
/* ffs -- Find the first bit set in the parameter
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NAME
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ffs -- Find the first bit set in the parameter
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SYNOPSIS
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int ffs (int valu)
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DESCRIPTION
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Find the first bit set in the parameter. Bits are numbered from
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right to left, starting with bit 1.
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*/
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int
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ffs
(
valu
)
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register
int
valu
;
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{
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register
int
bit
;
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if
(
valu
==
0
)
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return
0
;
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for
(
bit
=
1
; !(
valu
&
1
);
bit
++)
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valu
>>=
1
;
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return
bit
;
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}
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