Date: Sun, 13 Jul 2003 12:11:25 -0600 (MDT) From: "M. Warner Losh" <imp@bsdimp.com> To: jilles@stack.nl Cc: freebsd-current@freebsd.org Subject: Re: GCC 3.3.1, new warnings with <limits> Message-ID: <20030713.121125.54936166.imp@bsdimp.com> In-Reply-To: <20030713152154.GA96653@stack.nl> References: <20030713000559.28c18be6.kabaev@mail.ru> <20030713044331.GA89785@crodrigues.org> <20030713152154.GA96653@stack.nl>
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In message: <20030713152154.GA96653@stack.nl>
Jilles Tjoelker <jilles@stack.nl> writes:
: The compiler moans about (T)(-1) >= 0 as well. Is the assumption that
: (unsigned type)(-1) is never zero valid?
yes. There are no known machines where -1 == 0 for types of different
signs. Further, the C standard says that it must behave as if it is a
two's complement machine, and I think that C++ says so too.
Warner
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