Convert const char* to wstring

Question

I\'m working on a native extension for a zinc based flash application and I need to convert a const char* to a wstring.

This is my code:

Answer 1

On OS X wstring uses UTF-32 rather than UTF-16. You can do the conversion like this:

#include 
#include 

// make facets usable by giving them a public destructor
template 
class usable_facet
    : public Facet
{
public:
    template 
        usable_facet(Args&& ...args)
            : Facet(std::forward(args)...) {}
    ~usable_facet() {}
};

std::wstring s2ws(std::string const &s) {
    std::wstring_convert<
        usable_facet>
        ,char32_t> convert;
    std::u32string utf32 = convert.from_bytes(s);
    static_assert(sizeof(wchar_t)==sizeof(char32_t),"char32_t and wchar_t must have same size");
    return {begin(utf32),end(utf32)};
}