/** * @license Apache-2.0 * * Copyright (c) 2018 The Stdlib Authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ 'use strict'; /** * Return the array data type with the smallest size and closest "kind" to which array data types can be safely cast. * * @module @stdlib/array/promotion-rules * * @example * var promotionRules = require( '@stdlib/array/promotion-rules' ); * * var table = promotionRules(); * // returns {...} * * var dt = promotionRules( 'float32', 'uint32' ); * // returns 'float64' * * dt = promotionRules( 'float32', 'foo' ); * // returns null */ // MODULES // var promotionRules = require( './main.js' ); // EXPORTS // module.exports = promotionRules;