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

   1 //===----------------------------------------------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 // test <time.h>
  10
  11 #include <time.h>
  12 #include <type_traits>
  13
  14 #include "test_macros.h"
  15
  16 #ifndef NULL
  17 #error NULL not defined
  18 #endif
  19
  20 #ifndef CLOCKS_PER_SEC
  21 #error CLOCKS_PER_SEC not defined
  22 #endif
  23
  24 int main(int, char**)
  25 {
  26     clock_t c = 0; ((void)c);
  27     size_t s = 0;
  28     time_t t = 0;
  29     tm tmv = {};
  30     static_assert((std::is_same<decltype(clock()), clock_t>::value), "");
  31     static_assert((std::is_same<decltype(difftime(t,t)), double>::value), "");
  32     static_assert((std::is_same<decltype(mktime(&tmv)), time_t>::value), "");
  33     static_assert((std::is_same<decltype(time(&t)), time_t>::value), "");
  34     static_assert((std::is_same<decltype(asctime(&tmv)), char*>::value), "");
  35     static_assert((std::is_same<decltype(ctime(&t)), char*>::value), "");
  36     static_assert((std::is_same<decltype(gmtime(&t)), tm*>::value), "");
  37     static_assert((std::is_same<decltype(localtime(&t)), tm*>::value), "");
  38     char* c1 = 0;
  39     const char* c2 = 0;
  40     static_assert((std::is_same<decltype(strftime(c1,s,c2,&tmv)), size_t>::value), "");
  41
  42   return 0;
  43 }