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/*
* SpanDSP - a series of DSP components for telephony
*
* complex_vector_float_tests.c
*
* Written by Steve Underwood <steveu@coppice.org>
*
* Copyright (C) 2006,2008 Steve Underwood
*
* All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2, as
* published by the Free Software Foundation.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#if defined(HAVE_CONFIG_H)
#include "config.h"
#endif
#include <stdlib.h>
#include <stdio.h>
#include <fcntl.h>
#include <string.h>
#include "spandsp.h"
static void cvec_mulf_dumb(complexf_t z[], const complexf_t x[], const complexf_t y[], int n)
{
int i;
for (i = 0; i < n; i++)
{
z[i].re = x[i].re*y[i].re - x[i].im*y[i].im;
z[i].im = x[i].re*y[i].im + x[i].im*y[i].re;
}
}
/*- End of function --------------------------------------------------------*/
static int test_cvec_mulf(void)
{
int i;
complexf_t x[100];
complexf_t y[100];
complexf_t za[100];
complexf_t zb[100];
complexf_t ratio;
for (i = 0; i < 99; i++)
{
x[i].re = rand();
x[i].im = rand();
y[i].re = rand();
y[i].im = rand();
}
cvec_mulf(za, x, y, 99);
cvec_mulf_dumb(zb, x, y, 99);
for (i = 0; i < 99; i++)
printf("(%f,%f) (%f,%f) (%f,%f)\n", za[i].re, za[i].im, x[i].re, x[i].im, y[i].re, y[i].im);
for (i = 0; i < 99; i++)
{
ratio.re = za[i].re/zb[i].re;
ratio.im = za[i].im/zb[i].im;
if ((ratio.re < 0.9999 || ratio.re > 1.0001)
||
(ratio.im < 0.9999 || ratio.im > 1.0001))
{
printf("cvec_mulf() - (%f,%f) (%f,%f)\n", za[i].re, za[i].im, zb[i].re, zb[i].im);
printf("Tests failed\n");
exit(2);
}
}
return 0;
}
/*- End of function --------------------------------------------------------*/
static complexf_t cvec_dot_prodf_dumb(const complexf_t x[], const complexf_t y[], int n)
{
int i;
complexf_t z;
complexf_t z1;
z = complex_setf(0.0f, 0.0f);
for (i = 0; i < n; i++)
{
z1 = complex_mulf(&x[i], &y[i]);
z = complex_addf(&z, &z1);
}
return z;
}
/*- End of function --------------------------------------------------------*/
static int test_cvec_dot_prodf(void)
{
int i;
complexf_t x[100];
complexf_t y[100];
complexf_t zsa;
complexf_t zsb;
complexf_t ratio;
for (i = 0; i < 99; i++)
{
x[i].re = rand();
x[i].im = rand();
y[i].re = rand();
y[i].im = rand();
}
for (i = 1; i < 99; i++)
{
zsa = cvec_dot_prodf(x, y, i);
zsb = cvec_dot_prodf_dumb(x, y, i);
ratio.re = zsa.re/zsb.re;
ratio.im = zsa.im/zsb.im;
if ((ratio.re < 0.9999 || ratio.re > 1.0001)
||
(ratio.im < 0.9999 || ratio.im > 1.0001))
{
printf("cvec_dot_prodf() - (%f,%f) (%f,%f)\n", zsa.re, zsa.im, zsb.re, zsb.im);
printf("Tests failed\n");
exit(2);
}
}
return 0;
}
/*- End of function --------------------------------------------------------*/
int main(int argc, char *argv[])
{
test_cvec_mulf();
test_cvec_dot_prodf();
printf("Tests passed.\n");
return 0;
}
/*- End of function --------------------------------------------------------*/
/*- End of file ------------------------------------------------------------*/
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