1// -*- C++ -*- forwarding header. 2 3// Copyright (C) 1997-2017 Free Software Foundation, Inc. 4// 5// This file is part of the GNU ISO C++ Library. This library is free 6// software; you can redistribute it and/or modify it under the 7// terms of the GNU General Public License as published by the 8// Free Software Foundation; either version 3, or (at your option) 9// any later version. 10 11// This library is distributed in the hope that it will be useful, 12// but WITHOUT ANY WARRANTY; without even the implied warranty of 13// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14// GNU General Public License for more details. 15 16// Under Section 7 of GPL version 3, you are granted additional 17// permissions described in the GCC Runtime Library Exception, version 18// 3.1, as published by the Free Software Foundation. 19 20// You should have received a copy of the GNU General Public License and 21// a copy of the GCC Runtime Library Exception along with this program; 22// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see 23// <http://www.gnu.org/licenses/>. 24 25/** @file include/ctime 26 * This is a Standard C++ Library file. You should @c \#include this file 27 * in your programs, rather than any of the @a *.h implementation files. 28 * 29 * This is the C++ version of the Standard C Library header @c time.h, 30 * and its contents are (mostly) the same as that header, but are all 31 * contained in the namespace @c std (except for names which are defined 32 * as macros in C). 33 */ 34 35// 36// ISO C++ 14882: 20.5 Date and time 37// 38 39#pragma GCC system_header 40 41#include <bits/c++config.h> 42#include <time.h> 43 44#ifndef _GLIBCXX_CTIME 45#define _GLIBCXX_CTIME 1 46 47// Get rid of those macros defined in <time.h> in lieu of real functions. 48#undef clock 49#undef difftime 50#undef mktime 51#undef time 52#undef asctime 53#undef ctime 54#undef gmtime 55#undef localtime 56#undef strftime 57 58namespace std 59{ 60 using ::clock_t; 61 using ::time_t; 62 using ::tm; 63 64 using ::clock; 65 using ::difftime; 66 using ::mktime; 67 using ::time; 68 using ::asctime; 69 using ::ctime; 70 using ::gmtime; 71 using ::localtime; 72 using ::strftime; 73} // namespace 74 75#endif 76