Description
void
gmp_setbit ( resource &a, int index [, bool set_clear] )
Sets bit index in
a. set_clear
defines if the bit is set to 0 or 1. By default the bit is set to
1. Index starts at 0.
Note:
Unlike most of the other GMP functions, gmp_setbit()
must be called with a GMP resource that already exists (using
gmp_init() for example). One will not be
automatically created.
Example 1. gmp_setbit() example
<?php
$a = gmp_init("0xfd");
gmp_setbit($a, 1); // index starts at 0
echo gmp_strval($a) . "\n";
?>
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The printout of the above program will be:
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See also gmp_clrbit().
