error when compiling if statement

I keep getting a syntax error when trying to compile an if statement:

Code:

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#include <stdio.h>
#include <conio.h>
char c;
int main (void)
 
{
 
printf("press any key");
c = getch();
 
if (iscntrl (c))    /* ...... Error is here ................ */
 
 
 
 
 
printf(" you entered a control character",c);
 
 
 
}

---

Code:

---

printf(" you entered a control character",c);

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Your error is in this line. Why do you have a second argument?

>Your error is in this line. Why do you have a second argument?
The C standard guarantees that extra arguments to printf are ignored, so that's not an error. It is, however, a mistake. :)

>if (iscntrl (c)) /* ...... Error is here ................ */
You need to include <ctype.h> if you want to use iscntrl().