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From: kawa@yesun.yelab.yaskawa.co.jp (Mitsunori Kawabe)
Newsgroups: comp.sys.transputer
Subject: Re: how much memory left
Message-ID: <KAWA.91Mar13110817@yesun.yelab.yaskawa.co.jp>
Date: 13 Mar 91 02:08:17 GMT
References: <9103111424.aa27802@sappho.ux.King.AC.UK>
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In-reply-to: cs_s424@ux.kingston.ac.uk's message of 11 Mar 91 14:24:49 GMT

In article <9103111424.aa27802@sappho.ux.King.AC.UK> cs_s424@ux.kingston.ac.uk (Netherwood P J) writes:

 |Does anyone know of a method of determining how much memory you have
 |left after a series of calls to malloc in 3L's Parallel C ?

How about use undocumented global variable "IMP___HEAP_LIMIT".
It points top of heap. So you can estimate free memory left by subtracting
this value from current stack address like following.

int free_mem()
{
  extern char *IMP___HEAP_LIMIT;
  char tmp;
  return &tmp - IMP___HEAP_LIMIT;
}

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