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Date:Mon Nov 29 15:19:36 1993 
Subject:Re:store leaks (drip drip...) 
From:Robin Popplestone 
Volume-ID:931129.02 

Robin asks:
>> Gordon Dakin is suffering a store leak on a POP program for vision
>> that we have been writing.
>>  [text deleted]
>> (ii) Are there any tools available to help localise the problem. E.g. one
>> might do a kind of garbage collect analogue to discover how much store
>> was hung on a particular variable.

Steve writes:

> No, nor is it possible, even in principle, for users to write such
> tools. This is a matter of considerable frustration for me.  Even C users
> are (these days) supplied with much better tools for reviewing store use.
> Mind you, they have a greater incentive!

Certainly there are difficulties. But I don't think a useful tool is
-impossible-. The problem of course is not unrelated to garbage-collection,
persistence etc. I must go and jump on a what the Rev. Awbry would doubtless
characterise as a female of dubious inclinations - so more later when I have
had a hack on Mr Twinkle Flipflops, aka my 486.

Robin.