[HOW TO] convert std::string to std::wstring

Simple function for convert your std::string to std::wstring in C++

std::wstring strTo_wstr(const std::string& s)
{
int len;
int slength = (int)s.length() + 1;
len = MultiByteToWideChar(CP_ACP, 0, s.c_str(), slength, 0, 0);
wchar_t* buf = new wchar_t[len];
MultiByteToWideChar(CP_ACP, 0, s.c_str(), slength, buf, len);
std::wstring r(buf);
delete[ ] buf;
return r;
}