Re: realloc

[Mehran Rezaei <mehran@cs.unt.edu>]

Chuck Winters wrote:

> Hello all,
>         Anyone know why a program would freeze at realloc?  I thought
> if there was a problem, realloc would just fail.
>
> Thanks,
> Chuck
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Hi,

The problem happens just because of specific allocator that you are using. You can
avoid it by simply malloc new area, copy the content and free previos one. Just as
follow:

#include <sys/mman.h>
ptr1=malloc(size1);
.
.
.
ptr2=realloc(ptr1,size2);

...........................

ptr1=malloc(size1);
.
.
.
ptr2=malloc(size2);
memcpy(ptr2,ptr1,size1);
free(ptr1);

Good Luck,

Mehran