The break statement terminates the execution of the nearest enclosing do, for, switch, or while statement in which it appears. Control passes to the statement that follows the terminated statement.

jump-statement:
break;

The break statement is frequently used to terminate the processing of a particular case within a switch statement. Lack of an enclosing iterative or switch statement generates an error.

Within nested statements, the break statement terminates only the do, for, switch, or while statement that immediately encloses it. You can use a return or goto statement to transfer control elsewhere out of the nested structure.

This example illustrates the break statement:

#include <stdio.h>  
int main() {  
   char c;  
   for(;;) {  
      printf_s( "\nPress any key, Q to quit: " );  
  
      // Convert to character value  
      scanf_s("%c", &c);  
      if (c == 'Q')  
          break;  
   }  
} // Loop exits only when 'Q' is pressed  

break Statement