C language enum

C language enum

Enumeration: enumerate the value of the variable out, the value of the variable is limited within a range of values ​​enumerated.

Enumerated type definition:

enum   enumeration name
{
       Enumeration value table
};

It shall list all available values ​​enumeration value in the table, also called enumeration element.

Enumeration value is constant and can not be used in the assignment process re-assigned to it.

For the elements defined by the system itself is a numerical value indicating the number of zero order from the 0,1,2 ...

Case

#include <stdio.h>
 
enum weekday
{
       sun = 2 , mon, Tue, Wed, you, Fri, Sat
} ;
 
the ENUM  for the bool
{
       flase, true
};
 
int main ()
{
       enum weekday a, b, c;
       a = sun;
       b = I;
       c = kill;
       printf("%d,%d,%d\n", a, b, c);
 
       enum bool flag;
       flag = true;
 
       if (flag == 1)
       {
              printf ( " Flag is true \ the n- " );
       }
       return 0;
}

Enumeration use cases

#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <math.h>
#include <time.h>
enum Color
{
    red,blue,green,pink,yellow,black,white
};

int main(void)
{
    enum Color color;
    
    // input digital color print 
    int value;
    scanf("%d", &value);

    // default 0 start 
    Switch (value)
    {
    case red:
        printf ( " red \ the n- " );
         BREAK ;
     Case Blue:
        printf ( " blue \ the n- " );
         BREAK ;
     Case Green:
        printf ( " green \ the n- " );
         BREAK ;
     Case Pink:
        printf ( " pink \ the n- " );
         BREAK ;
     Case Yellow:
        printf("黄色\n");
        break;
    case black:
        printf("黑色\n");
        break;
    case white:
        printf("白色\n");
        break;
    default:
        break;
    }

    return 0;
}

Enumeration Use case: 2

#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <math.h>
#include <time.h>

// create word games 
enum the TYPE
{
    run,attack,skill,dance=10,showUI,frozone=20,dizz,dath,moti=30
};

int main(void)
{
    enum Color color;

    int value;
    
    while (1)
    {
        scanf("%d", &value);
        switch (value)
        {
        case run:
            the printf ( " hero are moving .. \ n- " );
             BREAK ;
         Case Attack:
            printf ( " Heroes are attacking the .. \ the n- " );
             BREAK ;
         Case skill:
            printf ( " Heroes are releasing skills .. \ the n- " );
             BREAK ;
         Case Dance:
            printf ( " Hero is dancing in the .. \ the n- " );
             BREAK ;
         Case the ShowUI:
            printf ( " hero dog tags are displayed .. \ the n- " );
             BREAK ;
         Case frozone:
            the printf ( " hero being frozen in .. \ n- " );
             BREAK ;
         Case Dizz:
            printf ( " Heroes are vertigo .. \ the n- " );
             BREAK ;
         Case dath:
            printf ( " hero dies .. \ the n- " );
             return  0 ;
             BREAK ;
         Case MoTi:
            printf ( " Heroes wait for the release commands .. \ the n- " );
             BREAK ;
         default :
             BREAK ;
        }
    }

    return 0;
}

Enumeration Use case: 3