ffs(3) ffs(3) NAME ffs - Find first set bit SYNOPSIS #include <strings.h> int ffs( int pattern ); LIBRARY Standard C Library (libc) STANDARDS Interfaces documented on this reference page conform to industry stan‐ dards as follows: ffs(): XPG4-UNIX Refer to the standards(5) reference page for more information about industry standards and associated tags. PARAMETERS Specifies the bit pattern searched. 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 1 (the least significant bit). If pattern is 0 (zero), ffs() returns 0. SEE ALSO Standards: standards(5) ffs(3)[top]
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