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From: gwyn@brl-smoke.ARPA (Doug Gwyn )
Newsgroups: net.lang.c
Subject: Re: C Preprocessor
Message-ID: <1354@brl-smoke.ARPA>
Date: Sun, 15-Jun-86 01:33:43 EDT
Article-I.D.: brl-smok.1354
Posted: Sun Jun 15 01:33:43 1986
Date-Received: Sat, 21-Jun-86 07:38:18 EDT
References: <989@dataioDataio.UUCP> <2600061@ccvaxa> <839@brahma.cs.hw.AC.UK>
Reply-To: gwyn@brl.arpa (Doug Gwyn (VLD/VMB) <gwyn>)
Organization: Ballistic Research Lab (BRL), APG, MD.
Lines: 11

In article <839@brahma.cs.hw.AC.UK> chris@cs.hw.AC.UK (Chris Miller) writes:
-	#if ('j' - 'i' == 1)
-...
-The evaluation of the constant expression is clearly intended to be carried
-out in terms of the "execution environment" rather than the "translation
-environment".

Well, that's a bug on the part of the programmer.
The C translator is permitted to evaluate preprocessor
expressions using the native facilities, even when
cross-compiling.