-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 many thanks for your answer, indeed, it's just what I needed, and you made it very simple to use! I wasn't sure *ref* was a real pointer allocator so I played with variable definition scope and nested procedures, and that combination appears to also provide that kind of functionality. But now that I know how it works let's try some :)
Kudos. On 31/07/2011 20:42, Romain Beauxis wrote: > Hi! > > 2011/7/30 okay_awright <[email protected]>: >> I've got a specific question related to how Liquidsoap scripts work. >> I'd like to 'propagate' an updated value from outside the definition of >> a function, and not rely on global variables. >> I was wondering how the *ref* keyword works, is it used to support >> C-like pointers? I can't find the specific help page right now. >> Say I've got a function "dummy_procedure" and I'd like to 'export' a >> variable from outside the scope of this function, the caveat is that the >> return value is already used for something else. >> Can I use the *ref* keyword somehow to avoid composite return values >> def dummy_procedure(_ref_x) = >> _ref_x = 5 >> 7 >> end >> x = 4 >> ref_x = ref x; >> y = dummy_procedure(ref_x) >> or should I use lists or maps to return both x and y from >> dummy_procedure at the same time? > > Variable references works as follows: > # Setup a reference > x = ref 1234 > > # Update the reference > x := 4567 > > # Retrieve the reference > y = !x > > Does that answer your question? > > Cheers, > Romain - -- best regards, okay_awright <okay_awright AT ddcr DOT biz> [PGP key on request] -----BEGIN PGP SIGNATURE----- iQEcBAEBAgAGBQJONaTzAAoJEN2X/7ng71pT4bkH/iizYC4w8Pa6jo+2ZYgML6Xh z0JaPKykVC0R8hrEhX1LvOIYlrBEA8hhaCvtJX0TLUSnxaB4tL/lUpDjkOJHPqPF 1it9du136fwlod4zeF1RlWwa30K5FmBFZA25t2+W/RS8Ka5+cMRP42ZEVFv7LPw3 /pb5EyJVmx5cD1J7xl71OmSYjX6tchpq0LDXsTBqoPufkn44WaAsMPRU4EC81RnA H3dsSwTxt6CE/SHHqfNLxAbqaIIg4hP406LGlgMC7Hh/tMUdIp0K79GNFNSDncEv et+iT73Tn8XNMSDgsXNcqZ/q7ZC8KwOG7tQ9KaHL3iuvwUQjGLOJWKrol6L8A08= =SDE4 -----END PGP SIGNATURE----- ------------------------------------------------------------------------------ Got Input? Slashdot Needs You. Take our quick survey online. Come on, we don't ask for help often. Plus, you'll get a chance to win $100 to spend on ThinkGeek. http://p.sf.net/sfu/slashdot-survey _______________________________________________ Savonet-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/savonet-users
