問題背景

在使用VScode時發現萬能頭文件<bits/stdc++.h>的包含語句下出現紅色波浪線，但是能正常運行。

#include <bits/stdc++.h> ?

解決思路

在編譯器位置創建一個對應的頭文件

• 找到編譯器讀取頭文件的位置

在vscode中寫一個能夠讀取的頭文件，右擊頭文件，點擊轉到定義打開頭文件

在vscode左側找到“打開的編輯器”，點擊“在文件資源管理器中顯示”

能夠發現在include目錄下發現很多頭文件，xxx/include，xxx路徑每個人不同

• 在include目錄下創建對應的頭文件

在該目錄下創建一個bits文件夾，在文件夾下創建一個stdc++.h文件

如果出現權限詢問，直接點同意即可；如果只允許建文件夾不能建文件，則找一個能夠建文件的地方建好填入內容再粘貼進入bits目錄下即可

stdc++.h文件內容如下

// 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 ?

萬能頭文件至此配置完成。

以上就是本期的內容！有其他興趣的小伙伴歡迎留言！！

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