You can not pass a NULL pointer to loadlib at the moment, this small hacks "converts" an empty string to a NULL pointer to pass it to Parror_dlopen:
We could as well change string_to_cstring to return a NULL pointer for a NULL String argument.
And for obtaining a NULL String you could use e.g. C<clears> or better a new opcode:
B<null>(out STR) # set register to NULL
For consistency we could have this op for all register type.
null I0 # a little faster shortcut of "set I0, 0"
Jens Rieks
leo
