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* @license Apache-2.0
*
* Copyright (c) 2024 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';
// MODULES //
var objectInverse = require( '@stdlib/object/inverse' );
var enumeration = require( '@stdlib/blas/base/transpose-operations' ).enum;
// VARIABLES //
var hash = objectInverse( enumeration(), {
'duplicates': false
});
// MAIN //
/**
* Returns the BLAS transpose operation string associated with a BLAS transpose operation enumeration constant.
*
* @param {integer} operation - operation enumeration constant
* @returns {(string|null)} operation string or null
*
* @example
* var str2enum = require( '@stdlib/blas/base/transpose-operation-str2enum' );
*
* var v = str2enum( 'transpose' );
* // returns <number>
*
* var s = enum2str( v );
* // returns 'transpose'
*/
function enum2str( operation ) {
var v = hash[ operation ];
return ( typeof v === 'string' ) ? v : null; // note: we include this guard to prevent walking the prototype chain
}
// EXPORTS //
module.exports = enum2str;
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