106 lines
2.9 KiB
C
106 lines
2.9 KiB
C
/*-
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* Copyright (c) 2007 Diomidis Spinellis. All rights reserved.
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <assert.h>
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#include <float.h>
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#include <math.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <strings.h>
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#include <sys/time.h>
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#include <sys/types.h>
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#define KASSERT(val, msg) assert(val)
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typedef u_int32_t comp_t;
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#define AHZ 1000000
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#include "convert.c"
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static int nerr;
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union cf {
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comp_t c;
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float f;
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};
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static void
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check_result(const char *name, float expected, union cf v)
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{
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double eps;
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eps = fabs(expected - v.f) / expected;
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if (eps > FLT_EPSILON) {
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printf("Error in %s\n", name);
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printf("Got 0x%08x %12g\n", v.c, v.f);
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v.f = expected;
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printf("Expected 0x%08x %12g (%.15lg)\n", v.c, v.f, expected);
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printf("Epsilon=%lg, rather than %g\n", eps, FLT_EPSILON);
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nerr++;
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}
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}
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int
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main(int argc, char *argv[])
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{
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union cf v;
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long l;
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int i, end;
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struct timeval tv;
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if (argc == 2) {
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/* Loop test */
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end = atoi(argv[1]);
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for (i = 0; i < end; i++) {
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tv.tv_sec = random();
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tv.tv_usec = (random() % 1000000);
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v.c = encode_timeval(tv);
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check_result("encode_timeval",
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(float)tv.tv_sec * AHZ + tv.tv_usec, v);
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l = random();
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v.c = encode_long(l);
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check_result("encode_long", l, v);
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}
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} else if (argc == 3) {
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/* Single-value timeval/long test */
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tv.tv_sec = atol(argv[1]);
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tv.tv_usec = atol(argv[2]);
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v.c = encode_timeval(tv);
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check_result("encode_timeval",
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(float)tv.tv_sec * AHZ + tv.tv_usec, v);
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v.c = encode_long(tv.tv_sec);
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check_result("encode_long", tv.tv_sec, v);
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} else {
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fprintf(stderr, "usage:\n%s repetitions\n%s sec usec\n",
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argv[0], argv[0]);
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return (1);
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}
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return (nerr);
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}
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