Endles loop (while loop) runs until I press a key. Programming C

Question

I want to create a code in C, that runs a loop and breaks the loop when I hit '1' BUT without pressing ENTER after it.

I use the GCC compiler.

example Code:

While-loop has to run always without pause, until I press '1' but without hitting ENTER ...(bin/stty raw)

int c=0;
int leave=0;
system ("/bin/stty raw"); 
while ((leave=getchar()) != '1'){
        c++;
        printf("\n- - while loop nr. %d\n",c);
        sleep(1);
}
system ("/bin/stty cooked");
printf("\n-- end of loop...\n");*
...

Hey KingOrgie, please replace the text in your language with english. — CausingUnderflowsEverywhere, Feb 01 '20 at 00:02
@P__J_ nice thank you for the first.... can you show me how to realize it? — KingOrgie69, Feb 01 '20 at 10:49
Does this answer your question? [How to avoid pressing enter with getchar()](https://stackoverflow.com/questions/1798511/how-to-avoid-pressing-enter-with-getchar) — tripleee, Feb 01 '20 at 13:13
@P__J__ no it doesnt... becouse the getchar avoids to pressing enter but at the end of every loop it wait for input....so the while-loop only loops again when i make a input ....but i like to have a while loop that run´s continuly and wait parallely for input....ughhh... — KingOrgie69, Feb 09 '20 at 15:43

score 0 · Answer 1 · answered Feb 01 '20 at 12:27

This is a C FAQ, answered here: http://c-faq.com/osdep/cbreak.html

Q: How can I read a single character from the keyboard without waiting for the RETURN key? How can I stop characters from being echoed on the screen as they're typed?

Basically, it is system-dependent and library-dependent. There are several possible solutions for various systems listed.

Endles loop (while loop) runs until I press a key. Programming C

1 Answers1