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/*
* Copyright (C) 2013 Jeff Epler <jepler@unpythonic.net>
*
* This program 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
* of the License, or (at your option) any later version.
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "rtapi.h"
#include "vsnprintf.h"
#include <stdio.h>
#include <string.h>
int rtapi_snprintf(char *buf, unsigned long size, const char *fmt, ...)
{
int retval;
va_list ap;
va_start(ap, fmt);
retval = rtapi_vsnprintf(buf, size, fmt, ap);
va_end(ap);
return retval;
}
double vectors[] = {
0.0, -0.0, 3.14, -3.14,
100, 1e6, 1e300,
1e-10, 1e-100, 1e-280, 1e-300,
-__builtin_inf(), __builtin_inf(), __builtin_nan(""),
};
int nvectors = sizeof(vectors)/sizeof(vectors[0]);
#include <sys/time.h>
#include <sys/resource.h>
double unow()
{
struct rusage ru;
getrusage(RUSAGE_SELF, &ru);
return ru.ru_utime.tv_sec + ru.ru_utime.tv_usec*1e-6;
}
#define N (1000000)
int main(void)
{
char buf1[1024], buf2[1024];
int i, fail=0;
for(i=0; i<nvectors; i++)
{
int j;
double t0, t1;
t0 = unow();
for(j=0; j<N; j++)
{
rtapi_snprintf(buf1, sizeof(buf1), "%f", vectors[i]);
}
t1 = unow();
snprintf(buf2, sizeof(buf2), "%A", vectors[i]);
printf("rtapi=%-30s libc=%-30s", buf1, buf2);
if(strcasecmp(buf1, buf2)) {
fail++;
printf(" ****fail****");
}
printf(" %.1fns/it\n", (t1-t0)*1e9/N);
}
return fail ? 1 : 0;
}
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