diff options
Diffstat (limited to 'multimeval.c')
| -rw-r--r-- | multimeval.c | 158 |
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 |