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### 2671. Errors in Copy

Section: 31.12.13.4 [fs.op.copy] Status: C++17 Submitter: Jonathan Wakely Opened: 2014-07-28 Last modified: 2017-07-30

Priority: 0

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Discussion:

31.12.13.4 [fs.op.copy] paragraph 16 says:

> Otherwise if `!exists(t) & (options & copy_options::copy_symlinks) != copy_options::none`, then `copy_symlink(from, to, options)`.

But there is no overload of `copy_symlink` that takes a `copy_options`; it should be `copy_symlink(from, to)`.

31.12.13.4 [fs.op.copy] Paragraph 26 says:

> as if by `for (directory_entry& x : directory_iterator(from))`

but the result of dereferencing a `directory_iterator` is const; it should be:

> as if by `for (const directory_entry& x : directory_iterator(from))`

[Apr 2016 Issue updated to address the C++ Working Paper. Previously addressed File System TS]

Proposed resolution:

Change 31.12.13.4 [fs.op.copy] paragraph 16 as indicated:

> Otherwise if `!exists(t) & (options & copy_options::copy_symlinks) != copy_options::none` , then `copy_symlink(from, to, options)`.

Change 31.12.13.4 [fs.op.copy] paragraph 26 as indicated:

> as if by `for (const directory_entry& x : directory_iterator(from))`