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Date: Fri, 23 Jan 2004 14:46:38 +0200
From: "Eli Zaretskii" <eliz AT elta DOT co DOT il>
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To: Esa A E Peuha <peuha AT cc DOT helsinki DOT fi>
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CC: djgpp-workers AT delorie DOT com
In-reply-to: <Pine.OSF.4.58.0401231150080.23983@sirppi.helsinki.fi> (message
	from Esa A E Peuha on Fri, 23 Jan 2004 11:54:15 +0200 (EET))
Subject: Re: Patch for bsearch
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> Date: Fri, 23 Jan 2004 11:54:15 +0200 (EET)
> From: Esa A E Peuha <peuha AT cc DOT helsinki DOT fi>
> >
> > "void" has no size, so you can't do pointer arithmetic with it.  Any
> > void* must be cast to a pointer to non-void to do pointer arithmetic.
> 
> In GNU C, sizeof(void) == 1 and therefore arithmetic on void pointers
> works just like on char pointers.  Is there any reason not to use GNU
> extensions in library sources?

Only one: that some future version of GCC might flag these with
warnings, and we use flags that make warnings to be treated as errors.