1FFZ(9)                     Basic C Library Functions                    FFZ(9)
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NAME

6       ffz - find first zero bit in word
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SYNOPSIS

9       unsigned long ffz(unsigned long word);
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ARGUMENTS

12       word
13           The word to search
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DESCRIPTION

16       Undefined if no zero exists, so code should check against ~0UL first.
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COPYRIGHT

19Kernel Hackers Manual 2.6.       November 2011                          FFZ(9)