In C and C++, enum types can be used to set up collections of named integer constants. Consider a set of all days.
#define Sunday 0
#define Monday 1
#define Tuesday 2
#define Wednesday 3
#define Thursday 4
#define Friday 5
#define Saturday 6
The above lines can be replaced by:
1 | enum AllDays{Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday}; |
Example program:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 | #include "stdio.h" int main() { enum AllDays{Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday}; AllDays aDay; int i = 0; printf("Please enter the day of the week (0 to 6)\n"); scanf("%d",&i); aDay = AllDays(i); if(aDay == Sunday || aDay == Saturday) printf("It is weekend :) \n"); else printf("It is not weekend :( \n"); return 0; } |
