Using range in switch case in C/C++

In C or C++, we have used the switch-case statement. In the switch statement we pass some value, and using different cases, we can check the value. Here we will see that we can use ranges in the case statement.

The syntax of using range in Case is like below −

case low … high

After writing case, we have to put lower value, then one space, then three dots, then another space, and the higher value.

In the following program, we will see what will be the output for the range based case statement.

Example

#include <stdio.h>
main() {
   int data[10] = { 5, 4, 10, 25, 60, 47, 23, 80, 14, 11};
   int i;
   for(i = 0; i < 10; i++) {
      switch (data[i]) {
         case 1 ... 10:
            printf("%d in range 1 to 10\n", data[i]);
         break;
         case 11 ... 20:
            printf("%d in range 11 to 20\n", data[i]);
         break;
         case 21 ... 30:
            printf("%d in range 21 to 30\n", data[i]);
         break;
         case 31 ... 40:
            printf("%d in range 31 to 40\n", data[i]);
         break;
         default:
            printf("%d Exceeds the range\n", data[i]);
         break;
      }
   }
}

Output

5 in range 1 to 10
4 in range 1 to 10
10 in range 1 to 10
25 in range 21 to 30
60 Exceeds the range
47 Exceeds the range
23 in range 21 to 30
80 Exceeds the range
14 in range 11 to 20
11 in range 11 to 20

karthikeya Boyini

Updated on 30-Jul-2019 22:30:26

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