Ticket #8914: time-failure.cpp

#include <iostream>
#include <ctime>
#include <cstring>

#undef NDEBUG
#include <assert.h>

using namespace std;

int main()
{
    tm tm;
    time_t t(0);
    memset(&tm, 0, sizeof(tm));
    
    cout << "zeroed tm" << endl;
    assert(tm.tm_sec == 0);
    
    cout << "gmtime_r" << endl;
    assert(gmtime_r(&t, &tm));
    assert(tm.tm_sec == 0);
    
    cout << "mktime" << endl;
    (void)mktime(&tm);
    assert(tm.tm_sec == 0);
    
    return 0;
}