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Date:      Sun, 28 Oct 2001 01:40:22 +1000 (EST)
From:      Bruce Evans <bde@zeta.org.au>
To:        John Baldwin <jhb@FreeBSD.ORG>
Cc:        Dag-Erling Smorgrav <des@ofug.org>, Mike Smith <msmith@FreeBSD.ORG>, Bakul Shah <bakul@bitblocks.com>, Poul-Henning Kamp <phk@critter.freebsd.dk>, Peter Wemm <peter@wemm.org>, <arch@FreeBSD.ORG>, Matthew Dillon <dillon@apollo.backplane.com>
Subject:   Re: 64 bit times revisited..
Message-ID:  <20011028013151.Q96378-100000@delplex.bde.org>
In-Reply-To: <XFMail.011026182323.jhb@FreeBSD.org>

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On Fri, 26 Oct 2001, John Baldwin wrote:

> On 27-Oct-01 John Baldwin wrote:
> > You did read the e-mail from Garrett where either SUS or POSIX one requires
> > time_t to fit in a long?  I.e. sizeof(time_t) <= sizeof(long).  This means
> ...
> My bad.  C90 requires that time_t fit into a long according to Garrett.  POSIX
> requires it to be either an integer or floating point with the fractional part
> zero according to his mail as well.

C90 only requres that time_t is an arithmetic type (anything from signed
char to long double).  POSIX also specifies a (wrong) representation (one
that ensures that leap seconds can't possibly work).

Changing time_t to long double would be interesting.

Bruce


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