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This commit is contained in:
Radim Kolar 2024-07-08 12:14:15 +02:00
parent d6c3aa5e03
commit 8428f5fd6c
1 changed files with 17 additions and 16 deletions
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33
tests/randomcheck.c
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@ -37,7 +37,7 @@ static unsigned short simple2 (void)
static unsigned short nr(void)
{
unsigned short ulRandom = ((float)(0xffff)*rand()/(RAND_MAX+1.0f));
return(ulRandom);
return(ulRandom);
}
static void run_randomtest( unsigned short (*keygen)(void) )
@ -50,14 +50,14 @@ static void run_randomtest( unsigned short (*keygen)(void) )
for(i=0;i<rounds;i++)
{
rnd=keygen();
for(j=0;j<16;j++)
{
if(rnd & 1)
bitcount[j]++;
rnd=rnd>>1;
}
rnd=keygen();
for(j=0;j<16;j++)
{
if(rnd & 1)
bitcount[j]++;
rnd=rnd>>1;
}
}
}
@ -72,12 +72,12 @@ static void print_bitcount(void)
for(i=0;i<16;i++)
{
ratio=(float)bitcount[i]/rounds;
if(fabs(ratio-0.5f)>worst)
worst=fabs(ratio-0.5f);
printf("%.2f ",ratio);
ratio=(float)bitcount[i]/rounds;
if(fabs(ratio-0.5f)>worst)
worst=fabs(ratio-0.5f);
printf("%.2f ", ratio);
}
printf(" Worst: %.3f\n",worst);
printf(" Worst: %.3f\n", worst);
if(worst>MAX_WORST_ALLOWED) result++;
}
@ -87,11 +87,11 @@ int main(int argc,const char *argv[])
rounds=20000;
if(argc>1)
{
rounds=atoi(argv[1]);
rounds=atoi(argv[1]);
}
printf("Running %d rounds.\n\n",rounds);
result=0;
#ifdef HAVE_SRANDOMDEV
srandomdev();
@ -113,5 +113,6 @@ int main(int argc,const char *argv[])
printf("Generator: Numerical Recipes\n");
run_randomtest(nr);
print_bitcount();
return result;
}