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Re: A warning patch, ptr assignment cleanup + error w/define after col 0
- To: Zack Weinberg <zack at rabi dot columbia dot edu>
- Subject: Re: A warning patch, ptr assignment cleanup + error w/define after col 0
- From: Jeffrey A Law <law at upchuck dot cygnus dot com>
- Date: Mon, 22 Mar 1999 21:14:12 -0700
- cc: "Kaveh R. Ghazi" <ghazi at caip dot rutgers dot edu>, egcs-patches at egcs dot cygnus dot com
- Reply-To: law at cygnus dot com
In message <199903222305.SAA24754@blastula.phys.columbia.edu>you write:
> This is a good point. I still think it's worth going through and
> standardizing, however. We want to use unsigned char everywhere
> we possibly can, because that will reduce the likelihood of future bugs.
> Is U_CHAR in system.h? If so, we could start by s/unsigned char/U_CHAR/
> everywhere. That'd reduce human confusion if nothing else. (I'd prefer to
> downcase U_CHAR at the same time, but that's me.)
I'd prefer to just use "unsigned char". I don't see the benefit of
indirection to use U_CHAR.
> What determines whether char == signed char or char == unsigned char by
It's system dependent. Usually we try to be compatible with the
vendor's compilers. And typically the vendor's compilers will choose
a signedness which is most efficient for their hardware.