Path: utzoo!attcan!uunet!husc6!rutgers!mailrus!ncar!tank!mimsy!chris
From: chris@mimsy.UUCP (Chris Torek)
Newsgroups: comp.lang.c
Subject: Re: hardcoded constants
Message-ID: <15145@mimsy.UUCP>
Date: 22 Dec 88 21:42:50 GMT
References: <2636@m2-net.UUCP> <1104@goofy.megatest.UUCP> <267@twwells.uucp> <410@aplcen.apl.jhu.edu>
Organization: U of Maryland, Dept. of Computer Science, Coll. Pk., MD 20742
Lines: 14

>>sizeof('\0') is equal to the size of an integer ....
>>Remember, in C, character constants are integer constants.

In article <410@aplcen.apl.jhu.edu> arrom@aplcen.apl.jhu.edu
(Ken Arromdee) writes:
>I was under the impression that "sizeof" is done at compile time and isn't
>really a function, so this would correctly return 1.

sizeof is indeed not a function, yet sizeof('\0') is the same as
sizeof(0) and sizeof(int), which are usually not the same as sizeof(char).
The second `>>' line above is the key: the type of '\0' is int, not char.
-- 
In-Real-Life: Chris Torek, Univ of MD Comp Sci Dept (+1 301 454 7163)
Domain:	chris@mimsy.umd.edu	Path:	uunet!mimsy!chris