How do I convert a char string to a wchar_t string?

Question

I have a string in `char*` format and would like to convert it to `wchar_t*`, to pass to a Windows function.

Accepted Answer

Does this little function help?

```
#include <cstdlib>

int mbstowcs(wchar_t *out, const char *in, size_t size);
```

Also see the C++ reference

Solution