Always return?

[Ian Caddy]

Hi,

In this function size is an unsigned32 so effectively the comparison is
to compare whether size is getting close to the limit of an unsigned32.

The negative number is converted to an unsigned32 which causes it to be
a very large positive number for the comparison.

Hope this helps,

Ian Caddy


shannon wrote:

>   if ( size >= (-1 - HEAP_BLOCK_USED_OVERHEAD) )
>       return( NULL );
> 
> This is a sentence in heapallocate.c. I think size is more than 0, and (-1-HEAP_BLOCK_USED_OVERHEAD) equals -9. Then the routine will be returned. Is what I think right? However, should the routine exit here?
> 
> 
> 　　　　　     　　　shannon
> 　　　　　　　　　　2003-09-18
> 
> 
>