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From: iwm@asun3.ic.ac.uk (Ian Moor)
Newsgroups: comp.lang.c,comp.arch
Subject: Re: one large array in Pascal
Message-ID: <IWM.88Aug30095804@asun3.ic.ac.uk>
Date: 30 Aug 88 08:57:14 GMT
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>I know of at least one which isn't: TeX.
>
>Why did Knuth do it this way?  I can only guess; I would guess that
>it's for some portability reason I am not aware of.

At least one early Pascal compiler did not implement  `dispose',
instead there were `mark' and `free' which treated the heap like a stack,
`free' released all the heap that was claimed since the last mark. 
If your program doesn't use store in a LIFO way then you had to do your
own allocation.