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Re: RFD: C pointer conversions that differ in unsignedness
- From: Joe Buck <Joe dot Buck at synopsys dot COM>
- To: schopper-gcc at bfw-online dot de
- Cc: Mike Stump <mrs at apple dot com>, gcc at gcc dot gnu dot org
- Date: Mon, 5 Dec 2005 09:43:21 -0800
- Subject: Re: RFD: C pointer conversions that differ in unsignedness
- References: <409E9DFD-F84E-11D7-9C01-003065A77310@apple.com> <20051205152756.A20653@lar.bfw.de>
On Mon, Dec 05, 2005 at 03:27:56PM +0100, schopper-gcc@bfw-online.de wrote:
> Shouldn't the compiler behave in the following way, concerning the signedness
> of pointer arguments?
>
> void f (long *l, signed long *sl, unsigned long *ul);
"long" and "signed long" are the same type. You are confused about how
C and C++ are defined. Same with "int" and "signed int". Only for "char"
are things different; it is implementation-defined (can differ from
platform to platform) whether "char" is signed or not.