1 //===----------------------------------------------------------------------===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is dual licensed under the MIT and the University of Illinois Open
6 // Source Licenses. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 
10 // test <time.h>
11 
12 #include <time.h>
13 #include <type_traits>
14 
15 #ifndef NULL
16 #error NULL not defined
17 #endif
18 
19 #ifndef CLOCKS_PER_SEC
20 #error CLOCKS_PER_SEC not defined
21 #endif
22 
main()23 int main()
24 {
25     clock_t c = 0; ((void)c);
26     size_t s = 0;
27     time_t t = 0;
28     tm tmv = {0};
29     static_assert((std::is_same<decltype(clock()), clock_t>::value), "");
30     static_assert((std::is_same<decltype(difftime(t,t)), double>::value), "");
31     static_assert((std::is_same<decltype(mktime(&tmv)), time_t>::value), "");
32     static_assert((std::is_same<decltype(time(&t)), time_t>::value), "");
33     static_assert((std::is_same<decltype(asctime(&tmv)), char*>::value), "");
34     static_assert((std::is_same<decltype(ctime(&t)), char*>::value), "");
35     static_assert((std::is_same<decltype(gmtime(&t)), tm*>::value), "");
36     static_assert((std::is_same<decltype(localtime(&t)), tm*>::value), "");
37     char* c1 = 0;
38     const char* c2 = 0;
39     static_assert((std::is_same<decltype(strftime(c1,s,c2,&tmv)), size_t>::value), "");
40 }
41