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721.wstring_convert inconsistensies
Section: 99 [depr.conversions.string] Status: NAD Submitter: Bo Persson Opened: 2007-08-27 Last modified: 2017-04-22
Priority: Not Prioritized
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Discussion:
Paragraph 3 says that the Codecvt template parameter shall meet the requirements of std::codecvt, even though std::codecvt itself cannot be used (because of a protected destructor).
How are we going to explain this code to beginning programmers?
template<class I, class E, class S>
struct codecvt : std::codecvt<I, E, S>
{
~codecvt()
{ }
};
void main()
{
std::wstring_convert<codecvt<wchar_t, char, std::mbstate_t> > compiles_ok;
std::wstring_convert<std::codecvt<wchar_t, char, std::mbstate_t> > not_ok;
}
[ San Francisco: ]
Bill will propose a resolution.
[ 2009-07 Frankfurt: ]
codecvt isn't intended for beginning programmers. This is a regrettable consequence of the original design of the facet.
Move to NAD.
Proposed resolution:
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