Newsgroups: comp.lang.c
Path: utzoo!utgpu!jarvis.csri.toronto.edu!dgp.toronto.edu!flaps
From: flaps@dgp.toronto.edu (Alan J Rosenthal)
Subject: Re: struct tm -> time_t converter wanted
Message-ID: <8810281857.AA20674@champlain.dgp.toronto.edu>
Keywords: C library, time
Organization: University of Toronto
References: <442@grand.UUCP> <8700@smoke.BRL.MIL> <6964@cdis-1.uucp> <8716@smoke.BRL.MIL> <12418@steinmetz.ge.com>
Date: Fri, 28 Oct 88 14:57:12 EDT


In article <12418@steinmetz.ge.com> davidsen@crdos1.UUCP (bill davidsen) writes:
>changing the epoch or going to 64 bits would break existing programs.

How could going to 64 bits break an existing program?  Only if it _depended_ on
2147483647 + 1 being -2147483648, as far as I can tell.  This is, of course,
assuming that longs have become 64 bits; time_t has to be typedefed as
_something_.

Or, of course, if it did stuff like "int *p = (int *)malloc(4)" instead of
using sizeof(int)...

But, show us a program which isn't broken already which will break when longs
become 64 bits.