text: /**
  * @license Apache-2.0
  *
  * Copyright (c) 2020 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';
  
  // MAIN //
  
  /**
  * Tests if a single-precision floating-point numeric value is `NaN`.
  *
  * @param {number} x - value to test
  * @returns {boolean} boolean indicating whether the value is `NaN`
  *
  * @example
  * var bool = isnanf( NaN );
  * // returns true
  *
  * @example
  * var bool = isnanf( 7.0 );
  * // returns false
  */
  function isnanf( x ) {
  	return ( x !== x );
  }
  
  
  // EXPORTS //
  
  module.exports = isnanf;
  