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Re: widget array
- From: Bryan Wilkinson <nardo pobox com>
- To: gtk-app-devel-list redhat com
- Subject: Re: widget array
- Date: Wed, 20 Oct 1999 13:25:53 -0400 (EDT)
> however, there are more pressing matters to attend to - u have
> > *((GtkWidget **)widgetPtr +1)
> this is a core dump waiting to happen. on 32 bit machines pointers are 4 bytes
> so
> it should be + 4; it is much easier (and safer/portable) to do +
> sizeof(widgetPtr) - which
> should give u the pointer size in bytes.
pointer arithmetic causes widgetPtr + 1 to be the same as &widgetPtr[1].
using widgetPtr + sizeof(widgetPtr) is not what the person wants, they
want the address of the next element in the array, in which case +1 is
correct.
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