Function UTF8toUTF16

src/string.cpp:560–572

std::wstring UTF8toUTF16(const std::string& s) {
	if (s.empty())
		return L"";
	// Compute length of output buffer
	int len = MultiByteToWideChar(CP_UTF8, 0, &s[0], s.size(), NULL, 0);
	assert(len > 0);
	std::wstring w;
	// Allocate enough space for null character
	w.resize(len);
	len = MultiByteToWideChar(CP_UTF8, 0, &s[0], s.size(), &w[0], len);
	assert(len > 0);
	return w;
}
#endif