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From: gwyn@brl-smoke.ARPA (Doug Gwyn )
Newsgroups: comp.lang.c
Subject: Re: reserved word 'entry'
Message-ID: <6294@brl-smoke.ARPA>
Date: Wed, 19-Aug-87 21:07:01 EDT
Article-I.D.: brl-smok.6294
Posted: Wed Aug 19 21:07:01 1987
Date-Received: Sat, 22-Aug-87 06:14:54 EDT
References: <402@root44.co.uk>
Reply-To: gwyn@brl.arpa (Doug Gwyn (VLD/VMB) <gwyn>)
Organization: Ballistic Research Lab (BRL), APG, MD.
Lines: 11
Keywords: entry

In article <402@root44.co.uk> jgh@root.co.uk (Jeremy G Harris) writes:
>Does anybody know what the K&R-listed reserved word 'entry' was for?

It was originally intended for an alternate function entry point,
as in FORTRAN.  This is sometimes used, for example, in math
library implementations of the SIN() and COS() functions, to
avoid having to add the overhead of an extra level of function
call (COS(X) can be implemented as SIN(X+PI/2)).

Very few, if any, C compilers implemented "entry" (other than
reserving the keyword), and X3J11 decided to get r ( ( nadeY