std::filesystem::copy_symlink

 

C++

Language

Standard library headers

Concepts

Utilities library

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Regular expressions library (C++11)

Atomic operations library (C++11)

Thread support library (C++11)

Filesystem library (C++17)

Technical Specifications

 

Filesystem library

Classes
filesystem::path filesystem::filesystem_error filesystem::directory_entry filesystem::directory_iterator filesystem::recursive_directory_iterator filesystem::file_status	filesystem::space_info filesystem::file_type filesystem::perms filesystem::copy_options filesystem::directory_options filesystem::file_time_type
Functions
filesystem::absolute filesystem::system_complete filesystem::canonical filesystem::copy filesystem::copy_file filesystem::copy_symlink filesystem::create_directory filesystem::create_directories filesystem::create_hard_link filesystem::create_symlink filesystem::create_directory_symlink filesystem::current_path filesystem::exists filesystem::equivalent	filesystem::file_size filesystem::hard_link_count filesystem::last_write_time filesystem::permissions filesystem::read_symlink filesystem::remove filesystem::remove_all filesystem::rename filesystem::resize_file filesystem::space filesystem::status filesystem::symlink_status filesystem::temp_directory_path
File types
filesystem::is_block_file filesystem::is_character_file filesystem::is_directory filesystem::is_empty filesystem::status_known	filesystem::is_fifo filesystem::is_other filesystem::is_regular_file filesystem::is_socket filesystem::is_symlink

 

Defined in header <filesystem>
void copy_symlink( const std::filesystem::path& from,                    const std::filesystem::path& to);	(1)	(since C++17)
void copy_symlink( const std::filesystem::path& from,                    const std::filesystem::path& to,                    std::error_code& ec );	(2)	(since C++17)

Copies a symlink to another location.

1) Effectively calls f(read_symlink(from), to) where f is create_symlink or create_directory_symlink depending on whether from resolves to a file or directory.

2) Effectively calls f(read_symlink(from, ec), to, ec) where f is create_symlink or create_directory_symlink depending on whether from resolves to a file or directory.

Parameters

from	-	path to a symbolic link to copy
to	-	destination path of the new symlink
ec	-	out-parameter for error reporting in the non-throwing overload

Return value

(none)

Exceptions

The overload that does not take a std::error_code& parameter throws filesystem_error on underlying OS API errors, constructed with from as the first argument, to as the second argument, and the OS error code as the error code argument. std::bad_alloc may be thrown if memory allocation fails. The overload taking a std::error_code& parameter sets it to the OS API error code if an OS API call fails, and executes ec.clear() if no errors occur. This overload has

noexcept specification:  

noexcept

  

See also

copy (C++17)	copies files or directories (function)
copy_file (C++17)	copies file contents (function)
create_symlinkcreate_directory_symlink (C++17)(C++17)	creates a symbolic link (function)
read_symlink (C++17)	obtains the target of a symbolic link (function)