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From: gnu@hoptoad.uucp (John Gilmore)
Newsgroups: comp.lang.c
Subject: Re: TC thanks & another question...
Message-ID: <2614@hoptoad.uucp>
Date: Mon, 3-Aug-87 07:21:38 EDT
Article-I.D.: hoptoad.2614
Posted: Mon Aug  3 07:21:38 1987
Date-Received: Tue, 4-Aug-87 01:55:15 EDT
References: <1255@killer.UUCP>
Organization: Nebula Consultants in San Francisco
Lines: 23

robertl@killer.UUCP (Robert Lord) wrote:
> data.sqle is defined in my structure (an include file) as type 'long int'.
> data.sqft is a string consisting of some numeral value (yes, with quotes
> and starting at [0] :-).  Now why does the command:
> 
> data.sqle = atol(data.sqft);
> 
> go crazy when I give it anything larger than 32000 (by 'going crazy' I mean
> giving the usual wierd numbers that have no connection with the origional
> one at all)?

Let me guess.  Did you declare:

	long atol();

somewhere in your source file?  Without this, the compiler does not know
that atol() is returning a 32-bit result, if your ints are 16 bits.

I recommend running "lint" on your programs, it will catch things like
this without your having to debug it.
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