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-rw-r--r--multimeval.c158
1 files changed, 156 insertions, 2 deletions
diff --git a/multimeval.c b/multimeval.c
index bb8c951..5f8010e 100644
--- a/multimeval.c
+++ b/multimeval.c
@@ -1,9 +1,10 @@
/* See LICENSE file for copyright and license details. */
#include "libsimple.h"
+#ifndef TEST
int
-libsimple_multimeval(struct timeval *prod, const struct timeval *multiplicand, int multiplier) /* TODO test */
+libsimple_multimeval(struct timeval *prod, const struct timeval *multiplicand, int multiplier)
{
struct timespec a, p;
int r;
@@ -11,5 +12,158 @@ libsimple_multimeval(struct timeval *prod, const struct timeval *multiplicand, i
r = libsimple_multimespec(&p, &a, multiplier);
if (r && errno != ERANGE)
return r;
- return r | libsimple_timespec2timeval(prod, &p);
+ if (libsimple_timespec2timeval(prod, &p) && r)
+ errno = ERANGE;
+ return r;
}
+
+
+#else
+#include "test.h"
+
+int
+main(void)
+{
+ struct timeval r, a;
+
+ a.tv_sec = 0, a.tv_usec = 0L;
+ assert(!libsimple_multimeval(&r, &a, 0));
+ assert(r.tv_sec == 0);
+ assert(r.tv_usec == 0L);
+
+ a.tv_sec = 10, a.tv_usec = 0L;
+ assert(!libsimple_multimeval(&r, &a, 0));
+ assert(r.tv_sec == 0);
+ assert(r.tv_usec == 0L);
+
+ a.tv_sec = 0, a.tv_usec = 10L;
+ assert(!libsimple_multimeval(&r, &a, 0));
+ assert(r.tv_sec == 0);
+ assert(r.tv_usec == 0L);
+
+ a.tv_sec = 10, a.tv_usec = 10L;
+ assert(!libsimple_multimeval(&r, &a, 0));
+ assert(r.tv_sec == 0);
+ assert(r.tv_usec == 0L);
+
+ a.tv_sec = 0, a.tv_usec = 0L;
+ assert(!libsimple_multimeval(&r, &a, 1));
+ assert(r.tv_sec == 0);
+ assert(r.tv_usec == 0L);
+
+ a.tv_sec = 10, a.tv_usec = 0L;
+ assert(!libsimple_multimeval(&r, &a, 1));
+ assert(r.tv_sec == 10);
+ assert(r.tv_usec == 0L);
+
+ a.tv_sec = 0, a.tv_usec = 10L;
+ assert(!libsimple_multimeval(&r, &a, 1));
+ assert(r.tv_sec == 0);
+ assert(r.tv_usec == 10L);
+
+ a.tv_sec = 10, a.tv_usec = 10L;
+ assert(!libsimple_multimeval(&r, &a, 1));
+ assert(r.tv_sec == 10);
+ assert(r.tv_usec == 10L);
+
+ a.tv_sec = 0, a.tv_usec = 0L;
+ assert(!libsimple_multimeval(&r, &a, 10));
+ assert(r.tv_sec == 0);
+ assert(r.tv_usec == 0L);
+
+ a.tv_sec = 10, a.tv_usec = 0L;
+ assert(!libsimple_multimeval(&r, &a, 10));
+ assert(r.tv_sec == 100);
+ assert(r.tv_usec == 0L);
+
+ a.tv_sec = 0, a.tv_usec = 10L;
+ assert(!libsimple_multimeval(&r, &a, 10));
+ assert(r.tv_sec == 0);
+ assert(r.tv_usec == 100L);
+
+ a.tv_sec = 10, a.tv_usec = 10L;
+ assert(!libsimple_multimeval(&r, &a, 10));
+ assert(r.tv_sec == 100);
+ assert(r.tv_usec == 100L);
+
+ a.tv_sec = 0, a.tv_usec = 0L;
+ assert(!libsimple_multimeval(&r, &a, -1));
+ assert(r.tv_sec == 0);
+ assert(r.tv_usec == 0L);
+
+ a.tv_sec = 10, a.tv_usec = 0L;
+ assert(!libsimple_multimeval(&r, &a, -1));
+ assert(r.tv_sec == -10);
+ assert(r.tv_usec == 0L);
+
+ a.tv_sec = 0, a.tv_usec = 10L;
+ assert(!libsimple_multimeval(&r, &a, -1));
+ assert(r.tv_sec == -1);
+ assert(r.tv_usec == 1000000L - 10L);
+
+ a.tv_sec = 10, a.tv_usec = 10L;
+ assert(!libsimple_multimeval(&r, &a, -1));
+ assert(r.tv_sec == -11);
+ assert(r.tv_usec == 1000000L - 10L);
+
+ a.tv_sec = 0, a.tv_usec = 0L;
+ assert(!libsimple_multimeval(&r, &a, -10));
+ assert(r.tv_sec == 0);
+ assert(r.tv_usec == 0L);
+
+ a.tv_sec = 10, a.tv_usec = 0L;
+ assert(!libsimple_multimeval(&r, &a, -10));
+ assert(r.tv_sec == -100);
+ assert(r.tv_usec == 0L);
+
+ a.tv_sec = 0, a.tv_usec = 10L;
+ assert(!libsimple_multimeval(&r, &a, -10));
+ assert(r.tv_sec == -1);
+ assert(r.tv_usec == 1000000L - 100L);
+
+ a.tv_sec = 10, a.tv_usec = 10L;
+ assert(!libsimple_multimeval(&r, &a, -10));
+ assert(r.tv_sec == -101);
+ assert(r.tv_usec == 1000000L - 100L);
+
+ a.tv_sec = TIME_MAX, a.tv_usec = 999999L;
+ assert(!libsimple_multimeval(&r, &a, 0));
+ assert(r.tv_sec == 0);
+ assert(r.tv_usec == 0);
+
+ a.tv_sec = TIME_MAX, a.tv_usec = 999999L;
+ assert(!libsimple_multimeval(&r, &a, 1));
+ assert(r.tv_sec == TIME_MAX);
+ assert(r.tv_usec == 999999L);
+
+ a.tv_sec = TIME_MAX, a.tv_usec = 0L;
+ assert(libsimple_multimeval(&r, &a, 2) == -1 && errno == ERANGE);
+ assert(r.tv_sec == TIME_MAX);
+ assert(r.tv_usec == 999999L);
+
+ a.tv_sec = TIME_MAX, a.tv_usec = 0L;
+ assert(libsimple_multimeval(&r, &a, -2) == -1 && errno == ERANGE);
+ assert(r.tv_sec == TIME_MIN);
+ assert(r.tv_usec == 0L);
+
+ a.tv_sec = TIME_MAX, a.tv_usec = 0L;
+ assert(!libsimple_multimeval(&r, &a, -1));
+ assert(r.tv_sec == -TIME_MAX);
+ assert(r.tv_usec == 0L);
+
+ if (-TIME_MAX > TIME_MIN) {
+ a.tv_sec = TIME_MAX, a.tv_usec = 999999L;
+ assert(!libsimple_multimeval(&r, &a, -1));
+ assert(r.tv_sec == -TIME_MAX - (time_t)1);
+ assert(r.tv_usec == 1L);
+ }
+
+ a.tv_sec = 10, a.tv_usec = 100001L;
+ assert(!libsimple_multimeval(&r, &a, 10));
+ assert(r.tv_sec == 101);
+ assert(r.tv_usec == 10L);
+
+ return 0;
+}
+
+#endif