// -*- C++ -*-
//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

#ifndef _LIBCPP_CTIME
#define _LIBCPP_CTIME

/*
    ctime synopsis

Macros:

    NULL
    CLOCKS_PER_SEC
    TIME_UTC // C++17

namespace std
{

Types:

    clock_t
    size_t
    time_t
    tm
    timespec // C++17

clock_t clock();
double difftime(time_t time1, time_t time0);
time_t mktime(tm* timeptr);
time_t time(time_t* timer);
char* asctime(const tm* timeptr);
char* ctime(const time_t* timer);
tm*    gmtime(const time_t* timer);
tm* localtime(const time_t* timer);
size_t strftime(char* restrict s, size_t maxsize, const char* restrict format,
                const tm* restrict timeptr);
int timespec_get( struct timespec *ts, int base); // C++17
}  // std

*/

#include <__assert> // all public C++ headers provide the assertion handler
#include <__config>

// <time.h> is not provided by libc++
#if __has_include(<time.h>)
#  include <time.h>
#  ifdef _LIBCPP_TIME_H
#    error "If libc++ starts defining <time.h>, the __has_include check should move to libc++'s <time.h>"
#  endif
#endif

#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#  pragma GCC system_header
#endif

_LIBCPP_BEGIN_NAMESPACE_STD

using ::clock_t _LIBCPP_USING_IF_EXISTS;
using ::size_t _LIBCPP_USING_IF_EXISTS;
using ::time_t _LIBCPP_USING_IF_EXISTS;
using ::tm _LIBCPP_USING_IF_EXISTS;
#if _LIBCPP_STD_VER > 14  && __has_attribute(using_if_exists)
using ::timespec _LIBCPP_USING_IF_EXISTS;
#endif
using ::clock _LIBCPP_USING_IF_EXISTS;
using ::difftime _LIBCPP_USING_IF_EXISTS;
using ::mktime _LIBCPP_USING_IF_EXISTS;
using ::time _LIBCPP_USING_IF_EXISTS;
using ::asctime _LIBCPP_USING_IF_EXISTS;
using ::ctime _LIBCPP_USING_IF_EXISTS;
using ::gmtime _LIBCPP_USING_IF_EXISTS;
using ::localtime _LIBCPP_USING_IF_EXISTS;
using ::strftime _LIBCPP_USING_IF_EXISTS;
#if _LIBCPP_STD_VER > 14  && __has_attribute(using_if_exists)
using ::timespec_get _LIBCPP_USING_IF_EXISTS;
#endif

_LIBCPP_END_NAMESPACE_STD

#endif // _LIBCPP_CTIME