Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!purdue!haven!adm!smoke!gwyn
From: gwyn@smoke.BRL.MIL (Doug Gwyn)
Newsgroups: comp.lang.c
Subject: Re: long conversion of short expression.
Message-ID: <10625@smoke.BRL.MIL>
Date: 30 Jul 89 10:49:14 GMT
References: <9092@chinet.chi.il.us>
Reply-To: gwyn@brl.arpa (Doug Gwyn)
Organization: Ballistic Research Lab (BRL), APG, MD.
Lines: 10

In article <9092@chinet.chi.il.us> pdg@chinet.chi.il.us (Paul Guthrie) writes:
>In the following code segment, the two shorts multiplied together
>exceed the size of a short, but the question is, is the result
>of the multiplication really a short to be converted to a
>long, or a long already?

Arithmetic operators that have the same arithmetic type for their operands
always produce the same type for the result.  If you want the result to be
a different type, convert at least one of the operands via a cast before
applying the arithmetic operator.