time-to-botec

Benchmark sampling in different programming languages
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identity.c (941B)

      1 /**
      2 * @license Apache-2.0
      3 *
      4 * Copyright (c) 2020 The Stdlib Authors.
      5 *
      6 * Licensed under the Apache License, Version 2.0 (the "License");
      7 * you may not use this file except in compliance with the License.
      8 * You may obtain a copy of the License at
      9 *
     10 *    http://www.apache.org/licenses/LICENSE-2.0
     11 *
     12 * Unless required by applicable law or agreed to in writing, software
     13 * distributed under the License is distributed on an "AS IS" BASIS,
     14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     15 * See the License for the specific language governing permissions and
     16 * limitations under the License.
     17 */
     18 
     19 #include "stdlib/math/base/special/identity.h"
     20 
     21 /**
     22 * Evaluates the identity function for a double-precision floating-point number.
     23 *
     24 * @param x       number
     25 * @return        input value
     26 *
     27 * @example
     28 * double y = stdlib_base_identity( 3.0 );
     29 * // returns 3.0
     30 */
     31 double stdlib_base_identity( const double x ) {
     32 	return x;
     33 }