C++中的 “万能头文件” ＜bits/stdc++.h＞

头文件号称"万能头文件“ 接下来让我们一起看一看它到底万能不万能

目录

前言

第一部分

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前言

这个头文件相信会一点C++的人都不会陌生 但是它其实说起来万能 但实际上讷~ 并不是完全万能的 

---

第一部分

打个比方说就不包含在这个头文件里面的

我们来看一下我们的这个”万能头文件“到底包含了什么吧~

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第二部分（具体包含的头文件）

直接上这个名为"stdc++.h"的文件的具体代码

// C++ includes used for precompiling -*- C++ -*-

// Copyright (C) 2003-2014 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library.  This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.

// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// Under Section 7 of GPL version 3, you are granted additional
// permissions described in the GCC Runtime Library Exception, version
// 3.1, as published by the Free Software Foundation.

// You should have received a copy of the GNU General Public License and
// a copy of the GCC Runtime Library Exception along with this program;
// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
// .

/** @file stdc++.h
 *  This is an implementation file for a precompiled header.
 */

// 17.4.1.2 Headers

// C
#ifndef _GLIBCXX_NO_ASSERT
#include 
#endif
#include 
#include 
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#if __cplusplus >= 201103L
#include 
#include 
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#include 
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#include 
#include 
#include 
#endif

// C++
#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include 

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