popcount(3) - NetBSD Manual Pages

POPCOUNT(3)             NetBSD 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. NetBSD 7.1 August 22, 2011 NetBSD 7.1

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