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