gmp_gcdextgmp_hamdist
(PHP 4 >= 4.0.4, PHP 5)
gmp_hamdist — Hamming distance
설명
int gmp_hamdist
( resource $a
, resource $b
)
Returns the hamming distance between a and b . Both operands should be non-negative.
매개변수
반환값
GMP 수 resource.
예제
Example#1 gmp_hamdist() example
<?php
$ham1 = gmp_init("1001010011", 2);
$ham2 = gmp_init("1011111100", 2);
echo gmp_hamdist($ham1, $ham2) . "\n";
/* hamdist is equivilent to: */
echo gmp_popcount(gmp_xor($ham1, $ham2)) . "\n";
?>
위 예제의 출력:
6 6
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