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#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "mathops.h"
#include <stdio.h>
#include <math.h>
#ifdef FIXED_POINT
#define WORD "%d"
#else
#define WORD "%f"
#endif
#ifdef FIXED_DEBUG
long long celt_mips=0;
#endif
int ret = 0;
void testdiv(void)
{
celt_int32 i;
for (i=1;i<=327670;i++)
{
double prod;
celt_word32_t val;
val = celt_rcp(i);
#ifdef FIXED_POINT
prod = (1./32768./65526.)*val*i;
#else
prod = val*i;
#endif
if (fabs(prod-1) > .001)
{
fprintf (stderr, "div failed: 1/%d="WORD" (product = %f)\n", i, val, prod);
ret = 1;
}
}
}
void testsqrt(void)
{
celt_int32 i;
for (i=1;i<=1000000000;i++)
{
double ratio;
celt_word16_t val;
val = celt_sqrt(i);
ratio = val/sqrt(i);
if (fabs(ratio - 1) > .001 && fabs(val-sqrt(i)) > 2)
{
fprintf (stderr, "sqrt failed: sqrt(%d)="WORD" (ratio = %f)\n", i, val, ratio);
ret = 1;
}
i+= i>>10;
}
}
void testrsqrt(void)
{
celt_int32 i;
for (i=1;i<=2000000;i++)
{
double ratio;
celt_word16_t val;
val = celt_rsqrt(i);
ratio = val*sqrt(i)/Q15ONE;
if (fabs(ratio - 1) > .05)
{
fprintf (stderr, "rsqrt failed: rsqrt(%d)="WORD" (ratio = %f)\n", i, val, ratio);
ret = 1;
}
i+= i>>10;
}
}
#ifndef FIXED_POINT
void testlog2(void)
{
float x;
for (x=0.001;x<1677700.0;x+=(x/8.0))
{
float error = fabs((1.442695040888963387*log(x))-celt_log2(x));
if (error>0.001)
{
fprintf (stderr, "celt_log2 failed: fabs((1.442695040888963387*log(x))-celt_log2(x))>0.001 (x = %f, error = %f)\n", x,error);
ret = 1;
}
}
}
void testexp2(void)
{
float x;
for (x=-11.0;x<24.0;x+=0.0007)
{
float error = fabs(x-(1.442695040888963387*log(celt_exp2(x))));
if (error>0.0005)
{
fprintf (stderr, "celt_exp2 failed: fabs(x-(1.442695040888963387*log(celt_exp2(x))))>0.0005 (x = %f, error = %f)\n", x,error);
ret = 1;
}
}
}
void testexp2log2(void)
{
float x;
for (x=-11.0;x<24.0;x+=0.0007)
{
float error = fabs(x-(celt_log2(celt_exp2(x))));
if (error>0.001)
{
fprintf (stderr, "celt_log2/celt_exp2 failed: fabs(x-(celt_log2(celt_exp2(x))))>0.001 (x = %f, error = %f)\n", x,error);
ret = 1;
}
}
}
#else
void testilog2(void)
{
celt_word32_t x;
for (x=1;x<=268435455;x+=127)
{
celt_word32_t error = abs(celt_ilog2(x)-(int)floor(log2(x)));
if (error!=0)
{
printf("celt_ilog2 failed: celt_ilog2(x)!=floor(log2(x)) (x = %d, error = %d)\n",x,error);
ret = 1;
}
}
}
#endif
int main(void)
{
testdiv();
testsqrt();
testrsqrt();
#ifndef FIXED_POINT
testlog2();
testexp2();
testexp2log2();
#else
testilog2();
#endif
return ret;
}
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