Entry as a reserved word

[Chris Calabrese[mav]]

In article <4542 at castle.ed.ac.uk>, mfg at castle.ed.ac.uk (M Gordon) writes:
> Most compilers I have used have entry as a reserved word but I've never been
> able to find anywhere that tells me what it's for. My guess would be it was
> supposed to be used to mark a function as the entry point for the program
> [...]

That's funny, the test program I tried to catch this with had no
problems at all under:
	gcc on a sun 3 with SunOS 4.0.3
	cc on the same as above
	cc on a vax 8650 with BSD 4.3
	cc on 3b2/600 running sVr3.2.2

Here's the test program:
	main() { int entry; }

Here's what lint had to say about it (lint -p on sV is _very_ picky):
	lint -p foo.c

	foo.c
	==============
	(1)  warning: entry unused in function main
	(1)  warning: main() returns random value to invocation environment

Here's what gcc -Wall (als picky) had to say:
	/tmp/foo.c: In function main:
	/tmp/foo.c:1: warning: return-type defaults to `int'
	/tmp/foo.c:1: warning: unused variable `entry'
	/tmp/foo.c:1: warning: control reaches end of non-void function
Name:			Christopher J. Calabrese
Brain loaned to:	AT&T Bell Laboratories, Murray Hill, NJ
att!ulysses!cjc		cjc at ulysses.att.com
Obligatory Quote:	``Anyone who would tell you that would also try and sell you the Brooklyn Bridge.''