Bitwise rotation to the left.
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Bitwise rotation to the left.
bash
npm install @stdlib/number-uint32-base-rotlscript tag without installation and bundlers, use the [ES Module][es-module] available on the [esm][esm-url] branch (see [README][esm-readme]).deno][deno-url] branch (see [README][deno-readme] for usage intructions).umd][umd-url] branch (see [README][umd-readme]).javascript
var rotl32 = require( '@stdlib/number-uint32-base-rotl' );javascript
var toBinaryStringUint32 = require( '@stdlib/number-uint32-base-to-binary-string' );
var x = 2147483649;
var bstr = toBinaryStringUint32( x );
// returns '10000000000000000000000000000001'
var y = rotl32( x, 10 );
// returns 1536
bstr = toBinaryStringUint32( y );
// returns '00000000000000000000011000000000'shift equal to 0, the function returns the input value.javascript
var y = rotl32( 3, 0 );
// returns 3shift greater than 31, the function performs a bitwise rotation based on the 5 least significant bits of shift (i.e., shift % 32).javascript
var shift = 34; // 00000000000000000000000000100010
var y = rotl( 1, shift ); // 00000000000000000000000000000100
// returns 4javascript
var toBinaryStringUint32 = require( '@stdlib/number-uint32-base-to-binary-string' );
var MAX_INT = require( '@stdlib/constants-uint32-max' );
var rotl32 = require( '@stdlib/number-uint32-base-rotl' );
var HALF;
var x;
var y;
var i;
for ( i = 0; i < 100; i++ ) {
x = i;
y = rotl32( x, 10 );
console.log( '%d => %s => %s => %d', x, toBinaryStringUint32( x ), toBinaryStringUint32( y ), y );
}
HALF = (MAX_INT+1) / 2;
for ( i = 0; i < 100; i++ ) {
x = HALF + i;
y = rotl32( x, 10 );
console.log( '%d => %s => %s => %d', x, toBinaryStringUint32( x ), toBinaryStringUint32( y ), y );
}
