From: Hans-Bernhard Broeker <broeker AT physik DOT rwth-aachen DOT de>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: SIGSEGV page fault DOS but not Windows
Date: 31 Oct 2000 14:17:35 GMT
Organization: Aachen University of Technology (RWTH)
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To: djgpp AT delorie DOT com
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Tim Nicholson <djgpp_mail AT gizzy DOT co DOT uk> wrote:

> char button_label_array[500][4][11] = { ".....

> In other words there are 500 labels in four languages each up to 10 chars
> long.
> label, in my program is defined as a char pointer and set like so..
> label = &button_label_array[x];  (where x always = 0 to 99).

That's incorrect code, then. &button_label_array[x] is an expression of type

	address of (element of (char array [500][4][11])
	= address of ( char array [4][11])
	= pointer to (char array [11])

This is not compatible to a pointer to a char, so assigning this to a
'label' declared as char pointer is an error.

gcc at full warning level (-O2 -Wall -W) should have complained about
this.

> I pass (*label)[setup->language] to the function. 

Here, '*label' is of type 'char', and accessing element number
(setup->language) of it is not going to do what you thought it does.

You have to define 'label' as pointer to a char[11] array:

	char (*label)[11];



-- 
Hans-Bernhard Broeker (broeker AT physik DOT rwth-aachen DOT de)
Even if all the snow were burnt, ashes would remain.