std::string to wchar_t*

[Howker]

I need to convert a std::string to wchar_t*.
Because I want to use guiEnv->addStaticText(...) to print this string on the screen.
How can I do this?

[hybrid]

core::stringw(mystdstring.c_str()).c_str() if you don't want to rely on the correct conversion functions for wide chars

[Howker]

works! thanks.

[kekar]

If you want to stick with C++ STL, you may also do this;

From basic string:

Code: Select all

 
std::string other("foobar");
const std::wstring& ws =  std::wstring(other.begin(), other.end());
const wchar_t* const wchr = wc.c_str();
 

You may also reverse it, replacing std::wstring with std::string.

[teto]

@kekar> interesting way of doing it. Is that always safe ? If you confirm it I might give up on us http://utfcpp.sourceforge.net/ which I currently use and also use iterators.

core::stringw(mystdstring.c_str()).c_str() if you don't want to rely on the correct conversion functions for wide chars

which means some chars are going to be misinterpreted ? What would be the correct irrlicht way (if any) ?

[hybrid]

Actually, for this way it should be safe. All chars should be representable as wchars. So you have no loss. But the other way round will of course make only direct casts from wide to normal chars. And this will break on all extended chars. Don't know how the STL would do this, but in C you have the mb methods for conversion.