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[Xen-devel] gcc4: char * vs unsigned char *

To: xen-devel@xxxxxxxxxxxxxxxxxxxxx
Subject: [Xen-devel] gcc4: char * vs unsigned char *
From: Rik van Riel <riel@xxxxxxxxxx>
Date: Thu, 3 Mar 2005 14:38:13 -0500 (EST)
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Since xen uses -Wall -Werror, gcc4 refuses to compile areas
of the code where "char *" and "unsigned char *" are used in a
mixed fashion.

This is a problem since xen uses "unsigned char *" for many
string functions, but the x86 string implementation uses
the (standard) "char *" and the generic string implementation
uses the (non-standard?) "unsigned char *".

I'm willing to do the work to standardise on one, if the Xen
maintainers think this is worth doing.  Otherwise I'll just
get rid of the -Werror for now ...

"Debugging is twice as hard as writing the code in the first place.
Therefore, if you write the code as cleverly as possible, you are,
by definition, not smart enough to debug it." - Brian W. Kernighan

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