/*
* Copyright (c) 2015 Jiri Svoboda
* Copyright (c) 2014 Martin Decky
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* - The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/** @addtogroup libmath
* @{
*/
/** @file
*/
#include <math.h>
#include "internal.h"
/**
* Computes sine and cosine at the same time, which might be more efficient than
* computing each separately.
*
* @param x Input value.
* @param s Output sine value, *s = sinf(x).
* @param c Output cosine value, *c = cosf(x).
*/
void sincosf(float x, float *s, float *c)
{
float base_arg = fmodf(x, 2 * M_PI);
if (base_arg < 0) {
*s = -__math_base_sin_32(-base_arg);
*c = __math_base_cos_32(-base_arg);
} else {
*s = __math_base_sin_32(base_arg);
*c = __math_base_cos_32(base_arg);
}
}
/**
* Computes sine and cosine at the same time, which might be more efficient than
* computing each separately.
*
* @param x Input value.
* @param s Output sine value, *s = sin(x).
* @param c Output cosine value, *c = cos(x).
*/
void sincos(double x, double *s, double *c)
{
double base_arg = fmod(x, 2 * M_PI);
if (base_arg < 0) {
*s = -__math_base_sin_64(-base_arg);
*c = __math_base_cos_64(-base_arg);
} else {
*s = __math_base_sin_64(base_arg);
*c = __math_base_cos_64(base_arg);
}
}
/** @}
*/