Enumeration Archives - C Program Examples

C Aptitude 29
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Predict the output or error(s) for the following:

C aptitude 29.1

  enum colors {BLACK,BLUE,GREEN}
main()
{
    
    printf("%d..%d..%d",BLACK,BLUE,GREEN);
    
    return(1);
}

Answer: 0..1..2

Explanation: enum assigns numbers starting from 0, if not explicitly defined.

C aptitude 29.2

   void main()
{
    char far *farther,*farthest;
    
    printf("%d..%d",sizeof(farther),sizeof(farthest));
    
}

Answer: 4..2

Explanation: The second pointer is of char type and not a far pointer

C aptitude 29.3

     main()
{
    int i=400,j=300;
    printf("%d..%d");
}

Answer: 400..300

Explanation: printf takes the values of the first two assignments of the program. Any number of printf’s may be given. All of them take only the first two.

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#include<stdio.h>
main()
{
/*
* Define a list of aliases
*/
enum months {Jan=1, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec};
/* A A
| |
| |
| ------- list of aliases.
-------------- Enumeration tag. */

enum months month; /* define 'month' variable of type 'months' */

printf("%dn", month=Sep); /* Assign integer value via an alias
* This will return a 9 */
}

C Program Examples

Enumeration

C Aptitude Questions and answers with explanation

C Program to demonstrate Enumeration.