[Python-bugs-list] [ python-Bugs-542181 ] Realloc behavior

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Bugs item #542181, was opened at 2002-04-10 21:18
You can respond by visiting: 
http://sourceforge.net/tracker/?func=detail&atid=105470&aid=542181&group_id=5470

Category: Python Interpreter Core
Group: Not a Bug
Status: Open
Resolution: None
Priority: 5
Submitted By: Gustavo Niemeyer (niemeyer)
Assigned to: Nobody/Anonymous (nobody)
Summary: Realloc behavior

Initial Comment:
I was just looking in obmalloc.c, and found this code 
and comment: 
 
else if (narenas == maxarenas) { 
   /* Grow arenas.  Don't use realloc:  if this 
    * fails, we don't want to lose the base 
    * addresses we already have. 
[...] 
 
Realloc may be safely used here. Realloc's behavior 
on failure is usually misunderstood. It will return 
NULL, but *won't* touch the already allocated memory. 
 
I know there are other constraints in this piece of 
code, but at least this comment may be safely 
removed. 

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