27. C enum.md

Enumerations in C

Video Link: https://youtu.be/-N212LgGqik
Tutorial Link: https://www.programiz.com/c-programming/c-enumeration

Integral Constants

#include <stdio.h>

enum Size {
  Small, 
  Medium,
  Large,
  ExtraLarge
};

int main() {

  enum Size shoeSize;

  shoeSize = ExtraLarge;

  printf("%d", shoeSize);

  return 0;
}

Output

3

Change value from ExtraLarge to Small

#include <stdio.h>

enum Size {
  Small, 
  Medium,
  Large,
  ExtraLarge
};

int main() {

  enum Size shoeSize;

  shoeSize = Small;

  printf("%d", shoeSize);

  return 0;
}

Output

0

Change value of Integral Constants

#include <stdio.h>

enum Size {
  Small = 27, 
  Medium = 31,
  Large = 35,
  ExtraLarge = 40
};

int main() {

  enum Size shoeSize1 = Small;
  enum Size shoeSize2 = Medium;
  enum Size shoeSize3 = Large;
  enum Size shoeSize4 = ExtraLarge;

  printf("%d\n", shoeSize1);
  printf("%d\n", shoeSize2);
  printf("%d\n", shoeSize3);
  printf("%d", shoeSize4);

  return 0;
}

Output

27
31
35
40

Create enum variables while defining the num

#include <stdio.h>

enum Size {
  Small, 
  Medium,
  Large,
  ExtraLarge
} shoeSize;

int main() {
  
  shoeSize = Medium;
  printf("%d", shoeSize);

  return 0;
}

Output

1

---

Programming Task

Create an enum with enum constants Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, and Saturday.

Inside the main function()

• Create two enum variables named weekend1 and weekend2.
• Assign values Sunday and Saturday to the variables respectively.
• Print the values of weekend1 and weekend2.

Solution

#include <stdio.h>

enum Day {
    Sunday,
    Monday,
    Tuesday,
    Wednesday,
    Thursday,
    Friday,
    Saturday
};

int main() {
    
    enum Day weekend1 = Sunday;
    enum Day weekend2 = Saturday;
    
    printf("%d \n%d", weekend1, weekend2);
    
    return 0;
}

Output

0
6

---

Programiz Quiz

Q. What is the name of the variable in the following enum?

enum Weekends {
Friday,
Saturday,
Sunday
} currentDay;

Options:

1. enum
2. Weekends
3. currentDay
4. Friday

Answer: 3