Jump Statements

September 02, 2020

Jump Statements

The jump statements unconditionally transfer program control within a function.

1. The continue Statement

The continue statement abandons the current iteration of the loop by skipping over the rest of the statements in the loop-body. It immediately transfers control to the evaluation of the test-expression of the loop for the next iteration of the loop.

#include<stdio.h>
int main(){
  int i;
  for(i=1;i<10;i++){
    if(i%2==0){
      continue;
    }
    printf("%d ",i);
  }
  return 0;
}

Output:

1 3 5 7 9

2. The break Statement

The break statment causes the termination of the statement there and then and the control passes over to the statement following loop containing break. A break statement can appear in any of the loops and a switch statement.

#include <stdio.h>
int main()
{
     int num =0;
     while(num<10)
     {
        printf("Value: %d\n", num);
        if (num==5)
        {
            break;
        }
        num++;
     }
     printf("Out of while-loop");
     return 0;
}

Output:

Value: 0
Value: 1
Value: 2
Value: 3
Value: 4
Value: 5
Out of while-loop

3. The goto Statement

A goto statement transfers the program control anywhere in the program. The target destination of a goto statement is marked by a label

Syntax:

goto label;
.
.
.
label:

4. The exit() Function

The exit() function is a library function and it breaks out of the program, abandoning the rest of the execution of the program. This function terminates the calling process immediately.

#include <stdio.h>
#include <stdlib.h>
int main() {
  int x = 10;
  int y = 0;

  if (y != 0)
    printf("x / y = %d", x/y);
  else {
    printf("Divisor is 0. Program exiting.");
    exit(EXIT_FAILURE);
  }
  
  return 0;
}