整理

2026-03-23 20:54:41 +08:00
commit e13b3650e9
4596 changed files with 1015768 additions and 0 deletions
--- a/include/boost/filesystem/exception.hpp
+++ b/include/boost/filesystem/exception.hpp
@@ -0,0 +1,92 @@
+//  boost/filesystem/exception.hpp  -----------------------------------------------------//
+
+//  Copyright Beman Dawes 2003
+//  Copyright Andrey Semashev 2019
+
+//  Distributed under the Boost Software License, Version 1.0.
+//  See http://www.boost.org/LICENSE_1_0.txt
+
+//  Library home page: http://www.boost.org/libs/filesystem
+
+#ifndef BOOST_FILESYSTEM_EXCEPTION_HPP
+#define BOOST_FILESYSTEM_EXCEPTION_HPP
+
+#include <boost/filesystem/config.hpp>
+#include <boost/filesystem/path.hpp>
+
+#include <string>
+#include <boost/system/error_code.hpp>
+#include <boost/system/system_error.hpp>
+#include <boost/smart_ptr/intrusive_ptr.hpp>
+#include <boost/smart_ptr/intrusive_ref_counter.hpp>
+
+#include <boost/filesystem/detail/header.hpp> // must be the last #include
+
+namespace boost {
+namespace filesystem {
+
+//--------------------------------------------------------------------------------------//
+//                                                                                      //
+//                            class filesystem_error                                    //
+//                                                                                      //
+//--------------------------------------------------------------------------------------//
+
+class BOOST_SYMBOL_VISIBLE filesystem_error :
+    public system::system_error
+{
+    // see http://www.boost.org/more/error_handling.html for design rationale
+
+public:
+    BOOST_FILESYSTEM_DECL filesystem_error(const char* what_arg, system::error_code ec);
+    BOOST_FILESYSTEM_DECL filesystem_error(std::string const& what_arg, system::error_code ec);
+    BOOST_FILESYSTEM_DECL filesystem_error(const char* what_arg, path const& path1_arg, system::error_code ec);
+    BOOST_FILESYSTEM_DECL filesystem_error(std::string const& what_arg, path const& path1_arg, system::error_code ec);
+    BOOST_FILESYSTEM_DECL filesystem_error(const char* what_arg, path const& path1_arg, path const& path2_arg, system::error_code ec);
+    BOOST_FILESYSTEM_DECL filesystem_error(std::string const& what_arg, path const& path1_arg, path const& path2_arg, system::error_code ec);
+
+    BOOST_FILESYSTEM_DECL filesystem_error(filesystem_error const& that);
+    BOOST_FILESYSTEM_DECL filesystem_error& operator=(filesystem_error const& that);
+
+    BOOST_FILESYSTEM_DECL ~filesystem_error() noexcept;
+
+    path const& path1() const noexcept
+    {
+        return m_imp_ptr.get() ? m_imp_ptr->m_path1 : get_empty_path();
+    }
+    path const& path2() const noexcept
+    {
+        return m_imp_ptr.get() ? m_imp_ptr->m_path2 : get_empty_path();
+    }
+
+    BOOST_FILESYSTEM_DECL const char* what() const noexcept override;
+
+private:
+    BOOST_FILESYSTEM_DECL static path const& get_empty_path() noexcept;
+
+private:
+    struct impl :
+        public boost::intrusive_ref_counter< impl >
+    {
+        path m_path1;       // may be empty()
+        path m_path2;       // may be empty()
+        std::string m_what; // not built until needed
+
+        impl() = default;
+        explicit impl(path const& path1) :
+            m_path1(path1)
+        {
+        }
+        impl(path const& path1, path const& path2) :
+            m_path1(path1), m_path2(path2)
+        {
+        }
+    };
+    boost::intrusive_ptr< impl > m_imp_ptr;
+};
+
+} // namespace filesystem
+} // namespace boost
+
+#include <boost/filesystem/detail/footer.hpp>
+
+#endif // BOOST_FILESYSTEM_EXCEPTION_HPP