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home | helpPOPCOUNT(3) BSD Library Functions Manual POPCOUNT(3) NAME popcount, popcountl, popcountll, popcount32, popcount64 -- count number of bits set in a bit string LIBRARY Standard C Library (libc, -lc) SYNOPSIS #include <strings.h> unsigned int popcount(unsigned int value); unsigned int popcountl(unsigned long value); unsigned int popcountll(unsigned long long value); #include <stdint.h> unsigned int popcount32(uint32_t value); unsigned int popcount64(uint64_t value); DESCRIPTION The popcount functions returns the number of bits set in value. SEE ALSO ffs(3) HISTORY The popcount(), popcountl(), popcountll(), popcount32(), and popcount64() functions appeared in NetBSD 6.0. BSD August 22, 2011 BSD
NAME | LIBRARY | SYNOPSIS | DESCRIPTION | SEE ALSO | HISTORY