Path: utzoo!utgpu!attcan!uunet!husc6!purdue!decwrl!megatest!djones
From: djones@megatest.UUCP (Dave Jones)
Newsgroups: comp.lang.c
Subject: Re: hardcoded constants
Message-ID: <1113@goofy.megatest.UUCP>
Date: 22 Dec 88 23:46:12 GMT
References: <1797@dataio.Data-IO.COM>
Organization: Megatest Corporation, San Jose, Ca
Lines: 23

From article <1797@dataio.Data-IO.COM>, by bright@Data-IO.COM (Walter Bright):
> In article <1104@goofy.megatest.UUCP> djones@megatest.UUCP (Dave Jones) writes:
> <foo =  malloc( strlen(s) + strlen(t) + sizeof('\0'));
> <Tells it all.  And keeps the reader on track, not grepping around
> <for macros.
> 
> But doesn't sizeof('\0') return sizeof(int), instead of sizeof(char)?
> Remember, the integral promotions are being done.


Gack! You are correct. Due to certain intermittent reduced neurological
function (sometimes I can be real dumb), it is hard for me to remember
that in C, "character" constants are of type int, not char. Seems goofy
to me. Can anyone suggest a rationale, so that I can remember this arcane
fact?

Okay. You get bucked off, you climb right back in the saddle, right?


How about,


  foo =  malloc( strlen(s) + strlen(t) + sizeof((char)'\0'));