Example of the break statement in C

The break statement is used to abort a loop prematurely.

#include <stdio.h>
int main() {
   int i;
   double number, sum = 0.0;
   // Loop 10 times
   for (i = 1; i <= 10; ++i) {
      printf("Enter n%d: ", i);
      scanf("%lf", &number);
      // If the user enters a negative number, break the loop prematurely
      if (number < 0.0) {
         break;
      }

      sum += number; // get the total. equal to: sum = sum + number; 
   }
   printf("Sum = %.2lf", sum);
   return 0;
}