1 /*- 2 * Copyright (c) 2010 The Android Open Source Project 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 */ 27 #define _GNU_SOURCE 1 28 #include <math.h> 29 30 // Disable sincos optimization for all functions in this file, 31 // otherwise gcc would generate infinite calls. 32 // Refer to gcc PR46926. 33 // -fno-builtin-sin or -fno-builtin-cos can disable sincos optimization, 34 // but these two options do not work inside optimize pragma in-file. 35 // Thus we just enforce -O0 when compiling this file. 36 #pragma GCC optimize ("O0") 37 38 void sincos(double x, double* p_sin, double* p_cos) { 39 *p_sin = sin(x); 40 *p_cos = cos(x); 41 } 42 43 void sincosf(float x, float* p_sinf, float* p_cosf) { 44 *p_sinf = sinf(x); 45 *p_cosf = cosf(x); 46 } 47 48 void sincosl(long double x, long double* p_sinl, long double* p_cosl) { 49 *p_sinl = sinl(x); 50 *p_cosl = cosl(x); 51 } 52
