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RE: Windows realloc & GNU


From: Conrad T. Pino
Subject: RE: Windows realloc & GNU
Date: Tue, 20 Sep 2005 15:24:25 -0700

> From: Derek Price [mailto:address@hidden
> 
> Assuming you mean that this works, I think it will be fine:
> 
>     p = realloc (NULL, 0);
>     free (p);

This definitely works:

        char c, *p;

        p = realloc (NULL, 0);
        c = p[0];
        free (p);

Referencing p[0] is fine, writing p[0] is NOT a trap or fault.

IMO debug run time library "free" does a guard byte test.





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