ffs() find first set bit	Function
	SYNOPSIS DESCRIPTION PARAMETERS RETURN VALUES CONFORMANCE MULTITHREAD SAFETY LEVEL PORTING ISSUES AVAILABILITY SEE ALSO

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SYNOPSIS

#include <string.h>

int ffs(unsigned int i);

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DESCRIPTION

The ffs() function returns the index of the first bit set in i. Bits are numbered starting at 1 from the least significant bit. A return value of zero indicates the value of i is zero.

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PARAMETERS

i 

Is an integer.

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RETURN VALUES

The ffs() returns the index of the first bit set in i, or zero if no bits are set.

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CONFORMANCE

4.4BSD

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MULTITHREAD SAFETY LEVEL

MT-Safe.

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PORTING ISSUES

None.

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AVAILABILITY

MKS Toolkit for Professional Developers
MKS Toolkit for Enterprise Developers
MKS Toolkit for Enterprise Developers 64-Bit Edition

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SEE ALSO

Functions:

bcmp(), bcopy(), bzero()

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MKS Toolkit 9.3 Documentation Build 6.