Re: Large structures

"Andreas Krall" <andi@complang.tuwien.ac.at>
14 Jun 2002 15:13:12 -0400

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Large structures wasowski@data.pl (Andrzej Wasowski) (2002-06-13)
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Re: Large structures andi@complang.tuwien.ac.at (Andreas Krall) (2002-06-14)
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From: "Andreas Krall" <andi@complang.tuwien.ac.at>
Newsgroups: comp.compilers
Date: 14 Jun 2002 15:13:12 -0400
Organization: Vienna University of Technology, Austria
References: 02-06-026
Keywords: C, practice
Posted-Date: 14 Jun 2002 15:13:12 EDT

"Andrzej Wasowski" <wasowski@data.pl> writes:
> Is it possible to declare a structure of arbitrary length in C? I have
> a code generation scheme in mind which uses a structure which might
> happen to have over 2000 fields. Does it conform to ANSI C? Moreover,
> dear compiler writers - do you know if C compilers tend to limit this
> value?


I once did some tests with structures bigger than 64K elements and tried
different compilers with different experiences.


Compaq C on Alpha works perferctly with compilation times less than 3
seconds.


GCC (Intel and Sparc) works, but had compilation times around 15
minutes.


Visual C worked partly (had some obscure bug).


All of these compilers had no internal limits


--
andi@complang.tuwien.ac.at Andreas Krall
http://www.complang.tuwien.ac.at/andi/ Inst. f. Computersprachen, TU Wien
tel: (+431) 58801/18511 Argentinierstr. 8/4/1851
fax: (+431) 58801/18598 A-1040 Wien AUSTRIA EUROPE

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