gr_sincos.c

来自「gnuradio软件无线电源程序.现在的手机多基于软件无线电」· C语言 代码 · 共 82 行

/* -*- c++ -*- */
/*
 * Copyright 2004 Free Software Foundation, Inc.
 * 
 * This file is part of GNU Radio
 * 
 * GNU Radio is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2, or (at your option)
 * any later version.
 * 
 * GNU Radio is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with GNU Radio; see the file COPYING.  If not, write to
 * the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#define _GNU_SOURCE		// ask for GNU extensions if available

#include <gr_sincos.h>
#include <math.h>

// ----------------------------------------------------------------

#if defined (HAVE_SINCOS)

void
gr_sincos (double x, double *sinx, double *cosx)
{
  sincos (x, sinx, cosx);
}

#else

void
gr_sincos (double x, double *sinx, double *cosx)
{
  *sinx = sin (x);
  *cosx = cos (x);
}

#endif

// ----------------------------------------------------------------

#if defined (HAVE_SINCOSF)

void
gr_sincosf (float x, float *sinx, float *cosx)
{
  sincosf (x, sinx, cosx);
}

#elif defined (HAVE_SINF) && defined (HAVE_COSF)

void
gr_sincosf (float x, float *sinx, float *cosx)
{
  *sinx = sinf (x);
  *cosx = cosf (x);
}

#else

void
gr_sincosf (float x, float *sinx, float *cosx)
{
  *sinx = sin (x);
  *cosx = cos (x);
}

#endif