Content-type: text/html Man page of ffs

ffs

Section: Standard C Library Functions (3C)
Updated: 24 Jul 2002
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NAME

ffs - find first set bit  

SYNOPSIS

#include <strings.h>

int ffs(const int i);  

DESCRIPTION

The ffs() function finds the first bit set (beginning with the least significant bit) and returns the index of that bit. Bits are numbered starting at one (the least significant bit).  

RETURN VALUES

The ffs() function returns the index of the first bit set. If i is 0, then ffs() returns 0.  

ERRORS

No errors are defined.  

ATTRIBUTES

See attributes(5) for descriptions of the following attributes:

ATTRIBUTE TYPEATTRIBUTE VALUE
Interface StabilityStandard
MT-LevelMT-Safe

 

SEE ALSO

attributes(5), standards(5)


 

Index

NAME
SYNOPSIS
DESCRIPTION
RETURN VALUES
ERRORS
ATTRIBUTES
SEE ALSO

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Time: 02:37:24 GMT, October 02, 2010