1FFZ(9) Basic C Library Functions FFZ(9)
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4
NAME
6ffz - find first zero bit in word
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SYNOPSIS
9unsigned long ffz(unsigned long word);
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ARGUMENTS
12word
13The word to search
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DESCRIPTION
16Undefined if no zero exists, so code should check against ~0UL first.
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COPYRIGHT
19Kernel Hackers Manual 2.6. June 2019 FFZ(9)