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.