Help Please, Beginner Question, rewrite loop

office888 · 12-11-2006, 07:46 AM

Hello, I'm really new to C programming, just started about a week and a half ago.

I worked with Visual Basic 6.0 last year, but i've forgotten alot since then. It appears my previous experience isn't much of a help with the higher languages.

But to the question.

How would I write a loop equivalent to the FOR loop below without using && or ||?

It's from the ANSI C book by Brian Kernighhan, Dennis Ritchie.

Code:

#include <stdio.h>

/* easy version, with && and || */

main()
{
int i;
int lim;
int c; 
int s[100];

      for (i=0; i<lim-1 && (c=getchar()) != '\n' && c != EOF; ++i)
        s[i] = c;
        
}

office888 · 12-11-2006, 07:48 AM

FYI, I'm pretty much learning on my own entirely (no teacher). I'd like to have a jump start before I hit college. I'm going to work through most of the C book, then move onto a reputable book for C++.

KoG Metalgod · 12-11-2006, 08:16 AM

Use while and your code does not work, think about what your using and comparing.

sl4nted · 12-11-2006, 09:50 AM

Code:

int i = 0
while (i < lim-1)
{
    c = getchar
    if c == '\n' break
    if c == EOF break
    s[i] = c
    i++
}

can't just copy and paste this, but here an outline of how it could be done

King Mir · 12-11-2006, 10:07 AM

You also need to initilize lim.

12-11-2006, 07:46 AM	#1
office888 Registered User Join Date: Dec 2006 Posts: 2	Help Please, Beginner Question, rewrite loop Hello, I'm really new to C programming, just started about a week and a half ago. I worked with Visual Basic 6.0 last year, but i've forgotten alot since then. It appears my previous experience isn't much of a help with the higher languages. But to the question. How would I write a loop equivalent to the FOR loop below without using && or \|\|? It's from the ANSI C book by Brian Kernighhan, Dennis Ritchie. Code: #include <stdio.h> /* easy version, with && and \|\| */ main() { int i; int lim; int c; int s[100]; for (i=0; i<lim-1 && (c=getchar()) != '\n' && c != EOF; ++i) s[i] = c; }
office888 is offline

12-11-2006, 07:48 AM	#2
office888 Registered User Join Date: Dec 2006 Posts: 2	FYI, I'm pretty much learning on my own entirely (no teacher). I'd like to have a jump start before I hit college. I'm going to work through most of the C book, then move onto a reputable book for C++.
office888 is offline

12-11-2006, 08:16 AM	#3
KoG Metalgod Registered User Join Date: Nov 2006 Posts: 65	Use while and your code does not work, think about what your using and comparing. __________________ You rant and rave about it, but at the end of the day, it doesn't matter if people use it as long as you don't see. People are free to read the arguments, but if the only way for you to discover gravity is by jumping off a cliff, then that is what you're going to have to experience for yourself. Eventually, this "fast and loose" approach of yours will bite you one too many times, then you'll figure out the correct way to do things. - Salem
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12-11-2006, 09:50 AM	#4
sl4nted Registered User Join Date: Nov 2006 Posts: 176	Code: int i = 0 while (i < lim-1) { c = getchar if c == '\n' break if c == EOF break s[i] = c i++ } can't just copy and paste this, but here an outline of how it could be done
sl4nted is offline

12-11-2006, 10:07 AM	#5
King Mir Registered User Join Date: Apr 2006 Posts: 1,323	You also need to initilize lim. __________________ It is too clear and so it is hard to see. A dunce once searched for fire with a lighted lantern. Had he known what fire was, He could have cooked his rice much sooner.
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