NAME
popcount,
popcountl, popcountll,
popcount32, popcount64
— count number of bits set in a
bit string
LIBRARY
library “libc”
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
Thepopcount functions return the number of bits set in
value.
SEE ALSO
HISTORY
The popcount(),
popcountl(), popcountll(),
popcount32(), and
popcount64() functions appeared in
NetBSD 6.0.