Scanning text forces me to go in next line, to confirm input. Can I prevent this for a special case?

Question

So basically I have a a program in C, whose point is to look organized. I'd like my program's cursor not to move after I confirm my Scanf statement. Heres example part of my program and its output:

#include <stdio.h>
int main()
{
char input[10];
int voltage=220;
printf("What do you want to know\n");      //no need to correct me on this part please
scanf("%s", input);
if (strcmp("voltage",input)==0)
     printf(" = %d\n", voltage);
/* Imagine other string comparisons (resistance, current) here*/
return 0;
}

So this program for input "voltage" would output something like this: voltage //what I just inputed via scanf = 220 // \n because I pressed enter after inputing.

What I wanted is:

voltage = 220

I dont know Is there reverse \n function that I dont know about.

That wouldnt help at all. I end input with new line, but I dont want that. The \n you were talking about hasnt got anything to do with the whole problem — user3272749, Feb 04 '14 at 21:56
Somewhat harsh on @Filipe Gonçalves. It is amazing how seemingly irrelevant issues do affect the end results. — chux - Reinstate Monica, Feb 04 '14 at 22:29
See http://stackoverflow.com/questions/10247591/setvbuf-not-able-to-make-stdin-unbuffered — chux - Reinstate Monica, Feb 04 '14 at 22:31
Yeah I'm sorry about that, but my other account is disabled, for asking noob-ish questions, but they were still on higher level than his answer was. Idk. — user3272749, Feb 04 '14 at 23:19

score 0 · Answer 1 · edited May 23 '17 at 10:25

0

There is no standard way in C to read input without pressing Enter. You will have to go for platform specific functions.

There are lots of questions here in StackOverflow that cover this, such as Capture characters from standard input without waiting for enter to be pressed

edited May 23 '17 at 10:25

Community

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answered Feb 04 '14 at 21:59

Filipe Gonçalves

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So theres not much I can do? well thank you anyways sir. – user3272749 Feb 04 '14 at 22:03
@user3272749 Well, there is, it just might not be as easy as you thought it would. As I said, you have to use platform specific solutions. If you only want this to work on linux, try the curses library. – Filipe Gonçalves Feb 04 '14 at 22:05

Scanning text forces me to go in next line, to confirm input. Can I prevent this for a special case?

1 Answers1