添加slug，改版文章目录命名结构，添加了一个实用的新建文章Shell脚本。
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date = '2025-12-29T11:10:37+08:00'
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draft = false
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license = 'MIT Licence'
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title = 'Clang编译器使用bits/stdc++.h头文件'
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tags = ['技术栈']
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description = '众所周知，Clang++不自带万能头。'
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+++
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我的Clang版本是17.0.0，macOS版本是26.0.1。
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## 使用方法
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在你使用`#include<bits/stdc++.h>`的源文件相同文件夹里面，新建一个`stdc++.h`文件。
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粘贴以下代码：
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（注意：这些代码来自GNU官网的GCC编译器项目目录，我于今天上午10点左右下载，注意该代码是否过时。）
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（在[GNU官网](https://gcc.gnu.org/git/?p=gcc.git;a=blob;f=libstdc%2B%2B-v3/include/precompiled/stdc%2B%2B.h;h=54baed43a5e2d4775b11429837c7c2e0cf05fc13;hb=HEAD)检查。）
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```c
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// C++ includes used for precompiling -*- C++ -*-
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// Copyright (C) 2003-2025 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// Under Section 7 of GPL version 3, you are granted additional
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// permissions described in the GCC Runtime Library Exception, version
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// 3.1, as published by the Free Software Foundation.
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// You should have received a copy of the GNU General Public License and
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// a copy of the GCC Runtime Library Exception along with this program;
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// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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// <http://www.gnu.org/licenses/>.
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/** @file stdc++.h
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* This is an implementation file for a precompiled header.
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*/
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// 17.4.1.2 Headers
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// C
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// Don't include cassert, it's not suitable for PCH or header unit.
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#include <cctype>
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#include <cfloat>
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#include <climits>
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#include <csetjmp>
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#include <cstdarg>
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#include <cstddef>
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#include <cstdlib>
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#if __cplusplus >= 201103L
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#include <cstdint>
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#if __cplusplus < 201703L
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#include <ciso646>
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#endif
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#endif
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// C++
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// #include <bitset>
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// #include <complex>
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#include <algorithm>
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#include <bitset>
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#include <functional>
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#include <iterator>
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#include <limits>
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#include <memory>
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#include <new>
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#include <numeric>
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#include <typeinfo>
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#include <utility>
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#if __cplusplus >= 201103L
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#include <array>
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#include <atomic>
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#include <initializer_list>
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#include <ratio>
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#include <scoped_allocator>
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#include <tuple>
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#include <typeindex>
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#include <type_traits>
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#endif
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#if __cplusplus >= 201402L
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#endif
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#if __cplusplus >= 201703L
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#include <any>
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// #include <execution>
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#include <optional>
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#include <variant>
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#include <string_view>
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#endif
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#if __cplusplus >= 202002L
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#include <bit>
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#include <compare>
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#include <concepts>
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#include <numbers>
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#include <ranges>
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#include <span>
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#include <source_location>
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#include <version>
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#if __cpp_impl_coroutine
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# include <coroutine>
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#endif
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#endif
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#if __cplusplus > 202002L
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#include <expected>
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#include <stdatomic.h>
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#endif
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// #if _GLIBCXX_HOSTED // Clang++就要强制使用捏
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// C
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#include <cctype>
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#include <cerrno>
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#include <cfloat>
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#include <climits>
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#include <clocale>
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#include <cmath>
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#include <csetjmp>
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#include <csignal>
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#include <cstdarg>
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#include <cstddef>
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#include <cstdio>
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#include <cstdlib>
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#include <cstring>
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#include <ctime>
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#include <cwchar>
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#include <cwctype>
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#if __cplusplus >= 201103L
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#include <cfenv>
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#include <cinttypes>
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#include <cstdint>
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#include <cuchar>
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#if __cplusplus < 201703L
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#include <ccomplex>
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#include <cstdalign>
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#include <cstdbool>
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#include <ctgmath>
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#endif
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#endif
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// C++
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#include <complex>
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#include <deque>
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#include <exception>
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#include <fstream>
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#include <functional>
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#include <iomanip>
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#include <ios>
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#include <iosfwd>
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#include <iostream>
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#include <istream>
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#include <iterator>
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#include <limits>
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#include <list>
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#include <locale>
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#include <map>
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#include <memory>
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#include <new>
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#include <numeric>
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#include <ostream>
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#include <queue>
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#include <set>
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#include <sstream>
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#include <stack>
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#include <stdexcept>
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#include <streambuf>
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#include <string>
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#include <typeinfo>
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#include <utility>
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#include <valarray>
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#include <vector>
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#if __cplusplus >= 201103L
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#include <array>
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#include <atomic>
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#include <chrono>
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#include <codecvt>
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#include <condition_variable>
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#include <forward_list>
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#include <future>
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#include <initializer_list>
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#include <mutex>
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#include <random>
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#include <ratio>
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#include <regex>
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#include <scoped_allocator>
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#include <system_error>
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#include <thread>
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#include <tuple>
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#include <typeindex>
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#include <type_traits>
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#include <unordered_map>
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#include <unordered_set>
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#endif
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#if __cplusplus >= 201402L
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#include <shared_mutex>
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#endif
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#if __cplusplus >= 201703L
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#include <any>
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#include <charconv>
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// #include <execution>
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#include <filesystem>
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#include <optional>
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#include <memory_resource>
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#include <variant>
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#endif
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#if __cplusplus >= 202002L
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#include <barrier>
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#include <bit>
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#include <compare>
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#include <concepts>
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#include <format>
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#include <latch>
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#include <numbers>
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#include <ranges>
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#include <span>
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#include <stop_token>
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#include <semaphore>
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#include <source_location>
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#include <syncstream>
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#include <version>
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#endif
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#if __cplusplus > 202002L
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#include <expected>
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#include <flat_map>
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// #include <flat_set> // 好像没有捏
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// #include <generator> // 好像没有捏
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#include <mdspan>
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#include <print>
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// #include <spanstream> // 好像没有捏
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// #include <stacktrace> // 好像没有捏
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#include <stdatomic.h>
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// #include <stdfloat> // 好像没有捏
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#endif
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#if __cplusplus > 202302L
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// #include <debugging> // 好像没有捏
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// #include <inplace_vector> // 好像没有捏
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// #include <text_encoding> // 好像没有捏
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// #include <stdbit.h> // 好像没有捏
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#include <stdckdint.h>
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#endif
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// #endif // Clang++就要强制使用捏
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// HOSTED
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```
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注意：有带“捏”注释的代码行是我的修改部分。
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- 如果您需要自行修改，首先需要把`#if _GLIBCXX_HOSTED`与对应的`#endif`注释掉（对应上面的`// Clang++就要强制使用捏`代码行），否则不能用于Clang；
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- `// 好像没有捏`注释的代码行是当前GCC编译器具备，而Clang编译器不具备的头文件。如果您想要自己测试，请随便写一个Hello World程序，先不用注释掉那些`#include`语句（注意上面那步注释是必须执行的），然后`#include"stdc++.h"`，不断编译，根据编译器的报错来选择性注释掉没有的头文件。
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- 再次注意：原有源文件的`#include<bits/stdc++.h>`需要全部改成`#include"stdc++.h"`。这会让您的编译器在源代码文件夹里查找stdc++.h，而不是错误地在编译器目录查找。
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- 之后使用`clang++ <源代码目录>`指令编译就有用啦。
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