libcxx/test/depr/depr.c.headers/time_h.pass.cpp

//===----------------------------------------------------------------------===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//

// test <time.h>

#include <time.h>
#include <type_traits>

#ifndef NULL
#error NULL not defined
#endif

#ifndef CLOCKS_PER_SEC
#error CLOCKS_PER_SEC not defined
#endif

int main()
{
    clock_t c = 0;
    size_t s = 0;
    time_t t = 0;
    tm tmv = {0};
    static_assert((std::is_same<decltype(clock()), clock_t>::value), "");
    static_assert((std::is_same<decltype(difftime(t,t)), double>::value), "");
    static_assert((std::is_same<decltype(mktime(&tmv)), time_t>::value), "");
    static_assert((std::is_same<decltype(time(&t)), time_t>::value), "");
    static_assert((std::is_same<decltype(asctime(&tmv)), char*>::value), "");
    static_assert((std::is_same<decltype(ctime(&t)), char*>::value), "");
    static_assert((std::is_same<decltype(gmtime(&t)), tm*>::value), "");
    static_assert((std::is_same<decltype(localtime(&t)), tm*>::value), "");
    char* c1 = 0;
    const char* c2 = 0;
    static_assert((std::is_same<decltype(strftime(c1,s,c2,&tmv)), size_t>::value), "");
}