From:	"A. Sinan Unur" <asu1 AT cornell DOT edu>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: user input problem
Date:	12 Oct 2001 22:49:04 GMT
Organization:	Cornell University
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gehok55 AT hotmail DOT com (Josh) wrote in 
news:3bc7498f DOT 24352957 AT news DOT westnet DOT com DOT au:

hi,

this kind of off-topic here because it is a general C question rather than 
being specific to DJGPP. i suggest you take a look at the 
comp.lang.c.moderated faq at http://www.faqs.org/faqs/C-faq/faq/ (esp 
section 12, question 12.19).

a better solution is to use fgets and parse the input using atoi or strtol, 
or maybe sscanf.

hth

#include <stdio.h>

static int read_int_from_stdin(void)
{
	int items;
	int value;
	char buffer[256];

	fgets(buffer, 256, stdin);
	items = sscanf(buffer, "%d", &value);

	if( items != 1 ) value = 0;

	return value;
}

int main(void)
{
	int numplayers;

	do 
	{
		printf("Please enter the number of players [2-4]:\n");
		numplayers = read_int_from_stdin();
		if (numplayers >= 2 && numplayers <= 4) break;
		printf("You entered: %d\n", numplayers);
		printf("Scrabble requires between 2 to 4 players\n"); 
	} while ( 1 == 1 );
	
	printf("You entered: %d\n", numplayers);

	return 0;
}


-- 
--------------------------------
A. Sinan Unur
http://www.unur.com/

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