wcpcpy - copy a wide character string, returning a pointer to its end
dest, const wchar_t *src);
The wcpcpy function is the wide-character equivalent
of the stpcpy function. It copies the wide character
string pointed to by src, including the terminating
L'0' character, to the array pointed to by
The strings may not overlap.
The programmer must ensure that there is room for at least
wcslen(src)+1 wide characters at
wcpcpy returns a pointer to the end of the
wide-character string dest, that is, a pointer to the
terminating L'0' character.
This function is a GNU extension.