VC6 problem: locale loc(locale::classic(), new myfac)

[John R Shaw]

Yes I am still supporting VC6 in this project and it has to be cross platform. Buried in the VC6 MSDN Library under “locale::facet” is the line “locale loc(locale::classic(), new myfac);”. Which is correct for latter versions of the MS STL, but there is no locale constructor that takes a locale and a facet defined in the VC6 STL version of locale. My unsatisfactory workaround is:

#ifdef _ADDFAC // Dinkumware macro
std::locale myLoc = std::_ADDFAC(std::locale::classic(), new my_codecvt);
#else
std::locale myLoc = std::locale(std::locale::classic(), new my_codecvt);
#endif

Do you have a better one?

INTP "Program testing can be used to show the presence of bugs, but never to show their absence."Edsger Dijkstra

[Stuart Dootson]

I'm sure this is teaching grandma to suck eggs, but the only thing I'd suggest is to encapsulate that in another function, so you only need to do it once, i.e:

template<class Facet>
std::locale AddFacet(std::locale const& l, const Facet* f)
{
#ifdef _ADDFAC // Dinkumware macro
return std::_ADDFAC(std::locale::classic(), new my_codecvt);
#else
return std::locale(std::locale::classic(), new my_codecvt);
#endif
}

Alternatively, use this:

#ifndef _ADDFAC // Dinkumware macro
#define _ADDFAC (std::locale)
#endif

and use _ADDFAC for all platforms.

Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p