R: [Boost-users] filesystem::copy_file throws -- but why?

11 Dec 2003

      I think you should rewrite your code either as:

  int processFile(const fs::path& fileName)
  {
      fs::path copyFileName(fileName.string() + ".bak");
      fs::copy_file(fileName, copyFileName);
  }

or as:

  int processFile(const fs::path& fileName)
  {
      fs::path copyFileName(fileName.native_file_string() + ".bak",
fs::native);
      fs::copy_file(fileName, copyFileName);
  }

In your example you are creating a fs::path from a string in "native" form
by using the default constructor, which expects the string to be in
"generic" form.

Hope this helps.
Regards,

Michele Galante
Zucchetti Centro Sistemi s.p.a.
m.galante@centrosistemi.it

-----Messaggio originale-----
Da: Scott Meyers [mailto:Usenet@aristeia.com]
Inviato: giovedì 11 dicembre 2003 7.11
A: boost-users@lists.boost.org
Oggetto: [Boost-users] filesystem::copy_file throws -- but why?

[...]

  int processFile(const fs::path& fileName)
  {
      fs::path copyFileName(fileName.native_file_string() + ".bak");
      fs::copy_file(fileName, copyFileName);
  }

This throws an exception:

  boost::filesystem::path: invalid name "D:\Temp\CDFix\INDEX.HTM.bak" in
path: "D:\Temp\CDFix
\INDEX.HTM.bak"

[...]

R: [Boost-users] filesystem::copy_file throws -- but why?

Galante Michele