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From: rk9005@cca.ucsf.edu (Roland McGrath)
Newsgroups: comp.sys.m6809,comp.lang.c
Subject: Re: Don't use Scanf()
Message-ID: <1185@ucsfcca.ucsf.edu>
Date: 11 Mar 88 02:36:59 GMT
References: <2401@ihwpt.ATT.COM> <320@c10sd1.StPaul.NCR.COM>
Reply-To: roland@rtsg.lbl.gov (Roland McGrath)
Organization: Hackers Anonymous International, Ltd., Inc. (Applications welcome)
Lines: 36
Keywords: C stdio library

One real stupidity I've seen many, many times is the
over-use of printf.  The printf functions have their uses,
and they do their job quite well, but please know what these
uses are!!

For example:
	printf("Hello world!\n");
Haven't you ever heard of puts????
	puts("Hello world!");	/* note the newline is appended	*/
or
	printf("hi");
try fputs:
	fputs("hi", stdout);	/* no newline appended	*/
What's that?  Oh, now you have to include <stdio.h> so
you can get the proper declarations of all these functions anyway?
Poor baby!

And the ultimate stupidity:
	printf("\n");
Get a brain!!!!!  You're using the function that can do complex
data formatted output to write one bleeping character!!!!!
Try
	putchar('\n');
If you include <stdio.h>, this will probably end up being a macro
that will write it out very fast.

I have even seen:
	sprintf(buf, "constant string");
Hey, Mr. Power-Programmer, ever heard of strcpy????


In general, if there's no format spec, don't use printf!!!!!!
-- 
	Roland McGrath
ARPA: roland@rtsg.lbl.gov roland@lbl-rtsg.arpa
UUCP: ...!ucbvax!lbl-rtsg.arpa!roland