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* @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.
*/
/* eslint-disable stdlib/jsdoc-doctest-decimal-point */
'use strict';
// MODULES //
var format = require( '@stdlib/string/format' );
var INT8 = require( '@stdlib/constants/int8/max' );
var UINT8 = require( '@stdlib/constants/uint8/max' );
var INT16 = require( '@stdlib/constants/int16/max' );
var UINT16 = require( '@stdlib/constants/uint16/max' );
var INT32 = require( '@stdlib/constants/int32/max' );
var UINT32 = require( '@stdlib/constants/uint32/max' );
var FLOAT16 = require( '@stdlib/constants/float16/pinf' );
var FLOAT32 = require( '@stdlib/constants/float32/pinf' );
var FLOAT64 = require( '@stdlib/constants/float64/pinf' );
// MAIN //
/**
* Returns the maximum value of a specified numeric type.
*
* @param {string} dtype - numeric type
* @throws {TypeError} must provide a recognized numeric type
* @returns {number} maximum value
*
* @example
* var m = typemax( 'int8' );
* // returns 127
*
* @example
* var m = typemax( 'uint8' );
* // returns 255
*
* @example
* var m = typemax( 'int16' );
* // returns 32767
*/
function typemax( dtype ) {
switch ( dtype ) {
case 'float64':
return FLOAT64;
case 'int32':
return INT32;
case 'uint32':
return UINT32;
case 'float32':
return FLOAT32;
case 'int8':
return INT8;
case 'uint8':
// Fall-through...
case 'uint8c': // eslint-disable-line no-fallthrough
return UINT8;
case 'int16':
return INT16;
case 'uint16':
return UINT16;
case 'float16':
return FLOAT16;
default:
throw new TypeError( format( 'invalid argument. Must provide a recognized type. Value: `%s`.', dtype ) );
}
}
// EXPORTS //
module.exports = typemax;
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