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std::filesystem::copy_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

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

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