time-to-botec

Benchmark sampling in different programming languages
Log | Files | Refs | README

expand_shape.js (1214B)

      1 /**
      2 * @license Apache-2.0
      3 *
      4 * Copyright (c) 2018 The Stdlib Authors.
      5 *
      6 * Licensed under the Apache License, Version 2.0 (the "License");
      7 * you may not use this file except in compliance with the License.
      8 * You may obtain a copy of the License at
      9 *
     10 *    http://www.apache.org/licenses/LICENSE-2.0
     11 *
     12 * Unless required by applicable law or agreed to in writing, software
     13 * distributed under the License is distributed on an "AS IS" BASIS,
     14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     15 * See the License for the specific language governing permissions and
     16 * limitations under the License.
     17 */
     18 
     19 'use strict';
     20 
     21 // MAIN //
     22 
     23 /**
     24 * Prepends singleton dimensions in order to satisfy a minimum number of dimensions.
     25 *
     26 * @private
     27 * @param {NonNegativeInteger} ndims - number of dimensions
     28 * @param {Array} shape - array dimensions
     29 * @param {NonNegativeInteger} ndmin - minimum number of dimensions
     30 * @returns {Array} output shape array
     31 */
     32 function expandShape( ndims, shape, ndmin ) {
     33 	var out;
     34 	var i;
     35 
     36 	out = [];
     37 	for ( i = 0; i < ndmin-ndims; i++ ) {
     38 		out.push( 1 );
     39 	}
     40 	for ( i = 0; i < ndims; i++ ) {
     41 		out.push( shape[ i ] );
     42 	}
     43 	return out;
     44 }
     45 
     46 
     47 // EXPORTS //
     48 
     49 module.exports = expandShape;