Quite a weird one, makes the compiler crash:

    import string;

    int main()
    {
     char* lpstr = toCharz(string);  // !!!
     return 0;
    }

The following program causes an Access Violation when run. Seems to happen each time I use initializers on char[][] arrays.

    import stdio;

    char[][] colors = [ "red", "green", "blue" ];

    int main()
    {
     printf("%.*s\n", colors[0]);
     return 0;
    }