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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 isIntegerf = require( '@stdlib/math/base/assert/is-integerf' );
var float64ToFloat32 = require( '@stdlib/number/float64/base/to-float32' );
// MAIN //
/**
* Tests if a finite single-precision floating-point number is an even number.
*
* @param {number} x - value to test
* @returns {boolean} boolean indicating whether the value is an even number
*
* @example
* var bool = isEvenf( 5.0 );
* // returns false
*
* @example
* var bool = isEvenf( -2.0 );
* // returns true
*
* @example
* var bool = isEvenf( 0.0 );
* // returns true
*
* @example
* var bool = isEvenf( NaN );
* // returns false
*/
function isEvenf( x ) {
return isIntegerf( float64ToFloat32( float64ToFloat32( x ) / 2.0 ) );
}
// EXPORTS //
module.exports = isEvenf;
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