Xcode下使用bits/stdc++.h 頭文件

bits/stdc++.h 頭文件，“萬能頭文件”。
這個頭文件包含了所有 C++ 標準庫，這樣我們就不用一個一個將我們需要的頭文件包含進來

問題

在Xcode中，第一次用bits/stdc++.h 頭文件時

解決:

在/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1目錄下新建bits文件夾，再將stdc++.h頭文件放置在bits文件夾下
bits/stdc++.h 的代碼如下：

// 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 // <http://www.gnu.org/licenses/>./** @file stdc++.h* This is an implementation file for a precompiled header.*/// 17.4.1.2 Headers// C #ifndef _GLIBCXX_NO_ASSERT #include <cassert> #endif #include <cctype> #include <cerrno> #include <cfloat> #include <ciso646> #include <climits> #include <clocale> #include <cmath> #include <csetjmp> #include <csignal> #include <cstdarg> #include <cstddef> #include <cstdio> #include <cstdlib> #include <cstring> #include <ctime>#if __cplusplus >= 201103L #include <ccomplex> #include <cfenv> #include <cinttypes> #include <cstdalign> #include <cstdbool> #include <cstdint> #include <ctgmath> #include <cwchar> #include <cwctype> #endif// C++ #include <algorithm> #include <bitset> #include <complex> #include <deque> #include <exception> #include <fstream> #include <functional> #include <iomanip> #include <ios> #include <iosfwd> #include <iostream> #include <istream> #include <iterator> #include <limits> #include <list> #include <locale> #include <map> #include <memory> #include <new> #include <numeric> #include <ostream> #include <queue> #include <set> #include <sstream> #include <stack> #include <stdexcept> #include <streambuf> #include <string> #include <typeinfo> #include <utility> #include <valarray> #include <vector>#if __cplusplus >= 201103L #include <array> #include <atomic> #include <chrono> #include <condition_variable> #include <forward_list> #include <future> #include <initializer_list> #include <mutex> #include <random> #include <ratio> #include <regex> #include <scoped_allocator> #include <system_error> #include <thread> #include <tuple> #include <typeindex> #include <type_traits> #include <unordered_map> #include <unordered_set> #endif

步驟：

打開終端

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

將上面bits/stdc++.h 的代碼粘進去就OK了

打開一個工程運行。

解決過程中遇到的問題…

按上面的步驟，運行時可能會報錯，但是看其他相關博客時候并沒有看到這個問題

也沒有百度到相關問題及解決。。。
我就注釋掉了這一行哈哈哈哈哈
完美運行

參考博客

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