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Command: popcountl | Section: 3 | Source: NetBSD | File: popcountl.3
POPCOUNT(3) FreeBSD 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 return 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.
FreeBSD 14.1-RELEASE-p8 August 22, 2011 FreeBSD 14.1-RELEASE-p8