MAC用户如何为Xocde配置#include ＜bitsstdc++.h＞的万能头文件

MAC用户如何为Xocde配置#include ＜bits/stdc++.h＞的万能头文件 前言

工欲善其事，必先利其器

众所周知，ACM里有一个强大的神器便是“bits/stdc++.h”，然而在Xcode中include这个头文件却报错，原因是stdc++.h是gcc特有的，而Xcode的c++编译器是clang，所以不能用万能头

解决方法就是手写一个stdc++.h用

方法1:手动设置

• 打开访达

• 按“⇧⌘Ｇ”来调出“前往文件夹”，或者点左上角倒数第三个按钮“前往”，选择“前往文件夹”

• 输入Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1

• 你就会进入一个如下的文件夹

• 你需要建一个名为bits的文件夹

• 进入bits的文件夹后，建立一个TXT格式的文稿，并改名为stdc++.h

• 将如下的代码粘贴进stdc++.h内

  // C++ includes used for precompiling -*- C++ -*-
  
  // Copyright (C) 2003-2013 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
  // .
  
  
  
  // 17.4.1.2 Headers
  
  // C
  #ifndef _GLIBCXX_NO_ASSERT
  #include 
  #endif
  #include 
  #include 
  #include 
  #include 
  #include 
  #include 
  #include 
  #include 
  #include 
  #include 
  #include 
  #include 
  #include 
  #include 
  #include 
  
  #if __cplusplus >= 201103L
  #include 
  #include 
  #include 
  //#include 
  #include 
  #include 
  #include 
  #include 
  #include 
  #endif
  
  // C++
  #include 
  #include 
  #include 
  #include 
  #include 
  #include 
  #include 
  #include 
  #include 
  #include 
  #include 
  #include 
  #include 
  #include 
  #include 
  #include 
  #include 

• 保存就可以了

方法2:命令行

• 打开终端

  cd /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1
  sudo mkdir bits
  sudo touch stdc++.h
  sudo vim stdc++.h
  

  // C++ includes used for precompiling -*- C++ -*-
  
  // Copyright (C) 2003-2013 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
  // .
  
  
  
  // 17.4.1.2 Headers
  
  // C
  #ifndef _GLIBCXX_NO_ASSERT
  #include 
  #endif
  #include 
  #include 
  #include 
  #include 
  #include 
  #include 
  #include 
  #include 
  #include 
  #include 
  #include 
  #include 
  #include 
  #include 
  #include 
  
  #if __cplusplus >= 201103L
  #include 
  #include 
  #include 
  //#include 
  #include 
  #include 
  #include 
  #include 
  #include 
  #endif
  
  // C++
  #include 
  #include 
  #include 
  #include 
  #include 
  #include 
  #include 
  #include 
  #include 
  #include 
  #include 
  #include 
  #include 
  #include 
  #include 
  #include 
  #include 

方法3:有手就行

如果上面的两个方法都不行，那就介绍一个有手就行的方法，

打开：这个网站

下载到本地

打开命令行，进入存放该文件的路径下，输sudo sh Xcode-bits-stdc++.sh，键入管理员密码后即可自动运行脚本，完成配置，真点击就送