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Article #302Re: Can you nest subroutines in C?
From: Wade Bickel
Date: Sat, 01 Jul 1989 06:36
Date: Sat, 01 Jul 1989 06:36
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papa@pollux.usc.edu (Marco Papa) writes:
>In article <4495@crash.cts.com> wade@pnet01.cts.com (Wade Bickel)
>writes:
>> So far I have found nothing I could do in C that I could not
>>do in M2. To me this is the test of a Language.
>
>Not really a test of a language at all. Can you have "procedure pointers"
>in M2 (i.e., variables that hold addresses of subroutines, and that get called
>just by referencing the variable, and that of course can be assigned to)?
>As I recall Pascal did not allow that. This is one of the features of C that
>currently I could not live without.
>
In a word, YES. Modula-2 is not PASCAL. It allows pointer math and
procedure pointers, and all the other goodies of this nature not included in
PASCAL. It also has a cleaner stucture definition system, better prototyping,
and much better (Language defined, not compiler specific) separate compilation
scheme.
As I said in my earlier posting, lack of the ability to nest
subroutines is the first concept I've found which could be translated, in
either direction. There are many things which I like about C, such as pre-
initialization of data, but none are conceptual issues, just technical ones.
Please do not continue to use your PASCAL experiances to pre-evaluate
Modula-2. I did not like PASCAL either. M2 shares most of PASCALs syntax,
but even here it is significantly different.
Thanks,
Wade.
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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!cs.utexas.edu!usc!hacgate!gryphon!crash!pnet01!wade From: wade@pnet01.cts.com (Wade Bickel) Newsgroups: comp.sys.amiga.tech Subject: Re: Can you nest subroutines in C? Message-ID: <4524@crash.cts.com> Date: 1 Jul 89 06:36:13 GMT Sender: news@crash.cts.com Organization: People-Net [pnet01], El Cajon CA Lines: 36