fix_std.hpp

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/*
 *
 * fix_std.hpp
 * old name: fix_std_fs.hpp
 * Created by AD 21/1/26
 * Copyright (c) 2025-2026 AD All rights reserved.
 *
 */
/*
 * @provide: why std add/fix some func/namespace/..., to ensure,the largest compatibility
 */
/*
 * ====------------ fix ------------====
 * fix@change: change fs(std::filesystem) to std::fs
 * fix@change: add alias of c++ std
 * fix@change: add the aliases `filesystem` and `fs` of the __filesystem namespace
**/

#ifndef _AD_STD_FIX_HPP__
#define _AD_STD_FIX_HPP__

#include <version>

// C++ std alias
#ifdef _ad_cxx__
    #define _ad_std_alias_cxx
#endif

#ifdef _ad_stdcxx_alias
    #define _ad_cancel_std_system
    #include <cstdlib>
    #include <string>
    #include <cstring>
    static constexpr auto& std_system = std::system;
#endif

namespace std {
#if defined(_LIBCPP_VERSION) && _LIBCPP_VERSION <= 14000
    namespace fs = __fs::filesystem;
    namespace filesystem = __fs::filesystem;
#else
    namespace fs = filesystem;
#endif

#ifdef _ad_cancel_std_system
    inline int command(const std::string& cmd) {
        return std_system(cmd.c_str());
    }
#endif
} /* namespace std */

#ifdef _ad_std_alias_cxx
  namespace std_cxx = std;
  namespace standard = std;
#endif /* _ad_std_alias_cxx */
#endif /* _AD_STD_FIX_HPP__ */