Am Mittwoch, 13. September 2006 18:24 schrieb Enrico Forestieri:
> I have installed STLport and the above program still says "size: 2", so
> I think that it "has to be" that way on windows.
Well, the STL can't change the size of builtin types, so that is expected.
wchar_t does not "have to be" 2 byte wide on windows, but it is what
native windows compilers usually do. On cygwin you have to make a choice
whether to follow other windows compilers or unix. I would not be
surprised if the opposite switch to -fshort-wchar would exist on cygwin.
> As regards the usable char_traits and friends, if you can provide me
> a test program I can try compiling it using STLport and report back
> the results.
Try this one. On linux the output is:
global has std::codecvt<boost::uint32_t> facet: 0
global has std::ctype<boost::uint32_t> facet: 0
global has std::num_put<boost::uint32_t> facet: 0
terminate called after throwing an instance of 'std::bad_cast'
what(): St8bad_cast
Abgebrochen
Georg
#include <boost/cstdint.hpp>
#include <iostream>
#include <locale>
#include <sstream>
int main()
{
std::locale const global;
std::cerr << "global has std::codecvt<boost::uint32_t> facet: " << std::has_facet<std::codecvt<boost::uint32_t, char, std::mbstate_t> >(global) << std::endl;
std::cerr << "global has std::ctype<boost::uint32_t> facet: " << std::has_facet<std::ctype<boost::uint32_t> >(global) << std::endl;
std::cerr << "global has std::num_put<boost::uint32_t> facet: " << std::has_facet<std::ctype<boost::uint32_t> >(global) << std::endl;
std::basic_ostringstream<boost::uint32_t> os;
os << 'x' << 11 << ' ' << 3.0;
std::basic_string<boost::uint32_t> const s(os.str());
std::cerr << "stringstream test: ";
for (size_t i = 0; i < s.size(); ++i)
std::cerr << s[i];
std::cerr << '\n';
return 0;
}
