gmp_scan1

PHP 4 >= 4.0.4, PHP 5, PHP 7, PHP 8
gmp_scan1 - Scan for 1
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Code Examples

gmp_scan1( GMP|int|string$num1, int$start ): int

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

Parameters

num1

The number to scan.

A GMP object, an int or a numeric string.

start

The starting bit.

Return Values

Returns the index of the found bit, as an int. If no set bit is found, -1 is returned.

Example of gmp_scan1

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