Question

If I had a while loop that I wanted to stop only if the q key is pressed how would I do that.
However, I do NOT want it to quite the program

#define TRUE  1
#define FALSE 0
typedef int boolean;

int main(int argc,char* argv[]){
char *script = malloc(MAXPATH);
script = "ls";
boolean a;
a = TRUE;
while(a){ //this is the while loop i want to break incase of a keypress
system(script);
}

do something else 
something else....

This will be running on Mac OS X.

both getchar() and getc() pause for a response which makes loop stop

Answer 1

native functions in C with which i can detect a keypress are :

 getchar() and getc()

 kbhit() is a function returns integer value whenever the key is pressed

you can use the above functions

 #include <stdio.h>
 #include <conio.h>
 #include <math.h>
 #include <time.h>

  int main()
  {
  int m;
  clrscr();
  do
    {

   if(kbhit())
     {
     if((m=getch())==97)
       {
        printf("Key a is pressed....\n");
       }
      }
 }  while(1);
    getch();
    return 0;
  }