gmp_scan0

gmp_scan0

Scan for 0

int **gmp_scan0**  $num1 int $start

Scans , starting with bit , towards more significant bits, until the first clear bit is found. num1``start

num1The number to scan.

startThe starting bit.

Returns the index of the found bit, as an . The index starts from 0. int

Voorbeeld: example

<?php
// "0" bit is found at position 3. index starts at 0
$s1 = gmp_init("10111", 2);
echo gmp_scan0($s1, 0) . "\n";

// "0" bit is found at position 7. index starts at 5
$s2 = gmp_init("101110000", 2);
echo gmp_scan0($s2, 5) . "\n";
?>

3
7