/* See LICENSE file for copyright and license details. */
#include "libsimple.h"
#ifndef TEST
int
libsimple_sumtimeval(struct timeval *sum, const struct timeval *augend, const struct timeval *addend)
{
struct timespec a, b, s;
int r;
libsimple_timeval2timespec(&a, augend);
libsimple_timeval2timespec(&b, addend);
r = libsimple_sumtimespec(&s, &a, &b);
if (r && errno != ERANGE)
return r;
if (libsimple_timespec2timeval(sum, &s) && r)
errno = ERANGE;
return r;
}
#else
#include "test.h"
int
main(void)
{
struct timeval r, a, b;
a.tv_sec = 0, a.tv_usec = 0;
b.tv_sec = 0, b.tv_usec = 0;
assert(!libsimple_sumtimeval(&r, &a, &b));
assert(r.tv_sec == 0);
assert(r.tv_usec == 0);
a.tv_sec = 10, a.tv_usec = 10000L;
b.tv_sec = 0, b.tv_usec = 0L;
assert(!libsimple_sumtimeval(&r, &a, &b));
assert(r.tv_sec == 10);
assert(r.tv_usec == 10000L);
a.tv_sec = 10, a.tv_usec = 10000L;
b.tv_sec = -10, b.tv_usec = 0L;
assert(!libsimple_sumtimeval(&r, &a, &b));
assert(r.tv_sec == 0);
assert(r.tv_usec == 10000L);
a.tv_sec = 10, a.tv_usec = 10000L;
b.tv_sec = -20, b.tv_usec = 20000L;
assert(!libsimple_sumtimeval(&r, &a, &b));
assert(r.tv_sec == -10);
assert(r.tv_usec == 30000L);
a.tv_sec = 1, a.tv_usec = 999999L;
b.tv_sec = 1, b.tv_usec = 1L;
assert(!libsimple_sumtimeval(&r, &a, &b));
assert(r.tv_sec == 3);
assert(r.tv_usec == 0L);
a.tv_sec = TIME_MAX, a.tv_usec = 0L;
b.tv_sec = TIME_MAX, b.tv_usec = 0L;
assert(libsimple_sumtimeval(&r, &a, &b) == -1);
assert(r.tv_sec == TIME_MAX);
assert(r.tv_usec == 999999L);
a.tv_sec = TIME_MAX, a.tv_usec = 999999L;
b.tv_sec = 0, b.tv_usec = 1L;
assert(libsimple_sumtimeval(&r, &a, &b) == -1);
assert(r.tv_sec == TIME_MAX);
assert(r.tv_usec == 999999L);
a.tv_sec = TIME_MAX, a.tv_usec = 1L;
b.tv_sec = 0, b.tv_usec = 999999L;
assert(libsimple_sumtimeval(&r, &a, &b) == -1);
assert(r.tv_sec == TIME_MAX);
assert(r.tv_usec == 999999L);
a.tv_sec = TIME_MIN, a.tv_usec = 0L;
b.tv_sec = TIME_MIN, b.tv_usec = 0L;
assert(libsimple_sumtimeval(&r, &a, &b) == -1);
assert(r.tv_sec == TIME_MIN);
assert(r.tv_usec == 0L);
a.tv_sec = TIME_MIN, a.tv_usec = 100L;
b.tv_sec = TIME_MIN, b.tv_usec = 100L;
assert(libsimple_sumtimeval(&r, &a, &b) == -1);
assert(r.tv_sec == TIME_MIN);
assert(r.tv_usec == 0L);
return 0;
}
#endif
