switch_example.cpp

// For compilers that support ranges in case statements
// remember, if a case doesn't have a break then it will fall through to the next one.

switch (age) {
  case 21:
    printf("You are old enough to drink");
  case 18 ... 20:
    printf("You are old enough to vote");
  case 16 ... 17:
    printf("You are old enough to drive");
}

// For compilers that don't support range you need to convert the range to an integer
int age_range = 0;
if (age > 20) {
  age_range = 1;
} else if (age > 18) {
  age_range = 2;
} else if (age > 16) {
  age_range = 3;
}

switch (age) {
  case 1:
    printf("You are old enough to drink);
  case 2:
    printf("You are old enough to vote");
  case 3:
    printf("You are old enough to drive");
}