jiangchengfeiyi-xiaochengxu/node_modules/mathjs/lib/cjs/function/bitwise/leftShift.js
2025-01-02 11:13:50 +08:00

121 lines
3.9 KiB
JavaScript

"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.createLeftShift = void 0;
var _matAlgo02xDS = require("../../type/matrix/utils/matAlgo02xDS0.js");
var _matAlgo11xS0s = require("../../type/matrix/utils/matAlgo11xS0s.js");
var _matAlgo14xDs = require("../../type/matrix/utils/matAlgo14xDs.js");
var _matAlgo01xDSid = require("../../type/matrix/utils/matAlgo01xDSid.js");
var _matAlgo10xSids = require("../../type/matrix/utils/matAlgo10xSids.js");
var _matAlgo08xS0Sid = require("../../type/matrix/utils/matAlgo08xS0Sid.js");
var _factory = require("../../utils/factory.js");
var _matrixAlgorithmSuite = require("../../type/matrix/utils/matrixAlgorithmSuite.js");
var _useMatrixForArrayScalar = require("./useMatrixForArrayScalar.js");
var _index = require("../../plain/number/index.js");
var _bitwise = require("../../utils/bignumber/bitwise.js");
const name = 'leftShift';
const dependencies = ['typed', 'matrix', 'equalScalar', 'zeros', 'DenseMatrix', 'concat'];
const createLeftShift = exports.createLeftShift = /* #__PURE__ */(0, _factory.factory)(name, dependencies, _ref => {
let {
typed,
matrix,
equalScalar,
zeros,
DenseMatrix,
concat
} = _ref;
const matAlgo01xDSid = (0, _matAlgo01xDSid.createMatAlgo01xDSid)({
typed
});
const matAlgo02xDS0 = (0, _matAlgo02xDS.createMatAlgo02xDS0)({
typed,
equalScalar
});
const matAlgo08xS0Sid = (0, _matAlgo08xS0Sid.createMatAlgo08xS0Sid)({
typed,
equalScalar
});
const matAlgo10xSids = (0, _matAlgo10xSids.createMatAlgo10xSids)({
typed,
DenseMatrix
});
const matAlgo11xS0s = (0, _matAlgo11xS0s.createMatAlgo11xS0s)({
typed,
equalScalar
});
const matAlgo14xDs = (0, _matAlgo14xDs.createMatAlgo14xDs)({
typed
});
const matrixAlgorithmSuite = (0, _matrixAlgorithmSuite.createMatrixAlgorithmSuite)({
typed,
matrix,
concat
});
const useMatrixForArrayScalar = (0, _useMatrixForArrayScalar.createUseMatrixForArrayScalar)({
typed,
matrix
});
/**
* Bitwise left logical shift of a value x by y number of bits, `x << y`.
* For matrices, the function is evaluated element wise.
* For units, the function is evaluated on the best prefix base.
*
* Syntax:
*
* math.leftShift(x, y)
*
* Examples:
*
* math.leftShift(1, 2) // returns number 4
*
* math.leftShift([1, 2, 4], 4) // returns Array [16, 32, 64]
*
* See also:
*
* leftShift, bitNot, bitOr, bitXor, rightArithShift, rightLogShift
*
* @param {number | BigNumber | bigint | Array | Matrix} x Value to be shifted
* @param {number | BigNumber | bigint} y Amount of shifts
* @return {number | BigNumber | bigint | Array | Matrix} `x` shifted left `y` times
*/
return typed(name, {
'number, number': _index.leftShiftNumber,
'BigNumber, BigNumber': _bitwise.leftShiftBigNumber,
'bigint, bigint': (x, y) => x << y,
'SparseMatrix, number | BigNumber': typed.referToSelf(self => (x, y) => {
// check scalar
if (equalScalar(y, 0)) {
return x.clone();
}
return matAlgo11xS0s(x, y, self, false);
}),
'DenseMatrix, number | BigNumber': typed.referToSelf(self => (x, y) => {
// check scalar
if (equalScalar(y, 0)) {
return x.clone();
}
return matAlgo14xDs(x, y, self, false);
}),
'number | BigNumber, SparseMatrix': typed.referToSelf(self => (x, y) => {
// check scalar
if (equalScalar(x, 0)) {
return zeros(y.size(), y.storage());
}
return matAlgo10xSids(y, x, self, true);
}),
'number | BigNumber, DenseMatrix': typed.referToSelf(self => (x, y) => {
// check scalar
if (equalScalar(x, 0)) {
return zeros(y.size(), y.storage());
}
return matAlgo14xDs(y, x, self, true);
})
}, useMatrixForArrayScalar, matrixAlgorithmSuite({
SS: matAlgo08xS0Sid,
DS: matAlgo01xDSid,
SD: matAlgo02xDS0
}));
});