96ccb4f0f4
Renamed from `vsnprintf.h`. This was done mainly to fix tests, but the header could be useful in an out-of-tree comp as well.
76 lines
2 KiB
C
76 lines
2 KiB
C
/*
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* Copyright (C) 2013 Jeff Epler <jepler@unpythonic.net>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include "rtapi.h"
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#include "rtapi_vsnprintf.h"
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#include <stdio.h>
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#include <string.h>
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int rtapi_snprintf(char *buf, unsigned long size, const char *fmt, ...)
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{
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int retval;
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va_list ap;
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va_start(ap, fmt);
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retval = rtapi_vsnprintf(buf, size, fmt, ap);
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va_end(ap);
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return retval;
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}
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double vectors[] = {
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0.0, -0.0, 3.14, -3.14,
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100, 1e6, 1e300,
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1e-10, 1e-100, 1e-280, 1e-300,
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-__builtin_inf(), __builtin_inf(), __builtin_nan(""),
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};
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int nvectors = sizeof(vectors)/sizeof(vectors[0]);
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#include <sys/time.h>
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#include <sys/resource.h>
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double unow()
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{
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struct rusage ru;
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getrusage(RUSAGE_SELF, &ru);
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return ru.ru_utime.tv_sec + ru.ru_utime.tv_usec*1e-6;
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}
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#define N (1000000)
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int main(void)
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{
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char buf1[1024], buf2[1024];
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int i, fail=0;
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for(i=0; i<nvectors; i++)
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{
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int j;
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double t0, t1;
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t0 = unow();
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for(j=0; j<N; j++)
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{
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rtapi_snprintf(buf1, sizeof(buf1), "%f", vectors[i]);
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}
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t1 = unow();
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snprintf(buf2, sizeof(buf2), "%A", vectors[i]);
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printf("rtapi=%-30s libc=%-30s", buf1, buf2);
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if(strcasecmp(buf1, buf2)) {
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fail++;
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printf(" ****fail****");
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}
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printf(" %.1fns/it\n", (t1-t0)*1e9/N);
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}
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return fail ? 1 : 0;
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}
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