Gpc February 2001

gpc@gnu.de

17 participants
24 discussions

A little new to the language
by Siberdemon＠aol.com 07 Feb '01

07 Feb '01

Well, anybody that can help, here's a newbie question about GPC and regular Pascal... I know what ordinal types are, but is it possible to use a case statement with a string type, and how... I need this for a M.U.D. I'm building in Pascal, it would really help... If you wish to help me, please email me, because I'm not a member of the list... Justin (siberdemon(a)aol.com) RPG Developer (on Unix ofcourse)

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Re: Using arrays in macros
by Frank Heckenbach 06 Feb '01

06 Feb '01

Eike Lange wrote (to me personally, forwarded here with his permission): > On Tue, Feb 06, 2001 at 12:36:03AM +0100, Frank Heckenbach wrote: > > Should this be changed? Using parentheses, as Eike suggested, works, > > but perhaps it would be more convenient if the above works. OTOH, it > > would (slightly) reduce the functionality of macros since it would > > then not be possible to use unbalanced brackets in arguments (though > > this is probably not useful unless in very strange situations)... > > Is there a standard available for writing macros with Pascal? Nope. None of the various standards and de-facto standard specify macros at all, AFAIK, and I don't even know if any other Pascal compiler supports them. GPC's macros are basically taken from GCC, somewhat Pascal-ized (#define -> {$define}, support for case-insensitive macros, etc.) > If not, I would suggest to make this work with > multidimensional arrays. That was my first thought too (even though, as you have shown, it works using parantheses). OTOH, as Russ noted, "changing the rules might cause more problems then it solves". I'm not sure what to do... > I never thought that unbalanced expressions work with macros and IMO > they decrease readability. Definitely. (I personally think macros is general decrease readablility, but even more so for macros that don't contain complete syntactical items.) Frank -- Frank Heckenbach, frank(a)g-n-u.de http://fjf.gnu.de/ PGP and GPG keys: http://fjf.gnu.de/plan

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Using arrays in macros
by Steve Loft 06 Feb '01

06 Feb '01

I want to use an element of a multi-dimensional array as a parameter to a macro, e.g.: ------------------------------------------------ program test(output); {$define THING(a,b) writeln(a*b)} var num : array [0..1,0..1] of integer = ((1,2), (3,4)); begin THING(num[1,1], 6) end. ------------------------------------------------ But this gives me an error: test.pas:8: macro `THING' used with too many (3) args Presumably it's taking the first comma as an argument delimiter. Can I get around this? -- Steve

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what is the status?
by bpn 05 Feb '01

05 Feb '01

hi all I am wondering, what is the status of the gpc? How much time is it to the next stable release? /BjÃ¶rn Persson

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Gpc February 2001