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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
int ret = 0;
void testdiv(void)
{
celt_int32_t 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_t 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_t 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;
}
}
int main(void)
{
testdiv();
testsqrt();
testrsqrt();
return ret;
}
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