At 04:04 PM 1/5/2005, Thorsten Ottosen wrote:
| > 3. Need target-argument form for wstring_convert conversion functions | > --------------------------------------------------------------------- | > | > wstring_convert's conversion functions are in the form: | > | > byte_string to_bytes(const wide_string& wstr) const; | > | > While this form is often useful and should be retained, it may imply
an
| > extra copy of the result if a compiler is not smart enough to optimize the | > copy away. | > Suggested change is to add additional functions in the form: | > | > void to_bytes(const wide_string& wstr, byte_string & target) const; | | I prefer output parameters to be first (due to the occasional | need to have defaulted parameters and the desire to find output | parameters in the same position relative to input parameters). | Thus, without meaning to trigger a religious war, I propose this | version instead: | | void to_bytes(byte_string & destination, | wide_string const & source) const;
I would prefer these to be free-standing functions. Was there something that prohibited that?
No. I was just following the pattern set by the proposal. I'm not sure how the LWG feels about that; I'll add a mention of the issue so they can decide. Would you care to add a short rationale? Thanks for the comment, --Beman