C/Data Type/Enum

Define and use enum

<source lang="cpp">

1. include <stdio.h>

enum computer {keyboard, CPU, screen, printer, mouse}; int main(void) {

 enum computer comp;
 comp = CPU;
 printf("%d", comp);
 return 0;

}

      </source>

Map enum to char and output with for loop

<source lang="cpp">

1. include <stdio.h>

enum spectrum { red, orange, yellow} colour; char *rainbow[] = { "red", "orange", "yellow" }; int main() {

 for ( colour = red; colour <= yellow; colour++ ) {
     printf ( "%s ", rainbow[colour]);
 }
 printf ( "\n" );

}

      </source>

Map enum to char array

<source lang="cpp">

1. include <stdio.h>

enum status{

 one,
 two,
 three,
 four,
 five

}; char *stats[] = {

 "1",
 "2",
 "3",
 "4",
 "5"

};

1. define NUMBER_OF_INPUTS ( sizeof ( stats ) / sizeof ( stats[0]))

int main() {

 enum status;
 int name;
 
 printf ( "Number of Inputs is: %d\n", NUMBER_OF_INPUTS );
 for ( name = one; name < NUMBER_OF_INPUTS; name++) {
   printf ( "\n%s", stats[ name ] );
 }
 
 printf ( "\n\n" );

}

      </source>

Map enum to string array

<source lang="cpp">

1. include <stdio.h>
2. include <stdlib.h>
3. include <conio.h>

enum transport {car, train, airplane, bus} tp; char trans[][20] = {

 "car", "train", "airplane", "bus"

}; int main(void) {

 printf("Press a key to select transport: ");
 /* Generate a new random number */
 
 while(!kbhit()) 
     rand();
     
 getch(); /* read and discard character */
 tp = rand() % 4;
 
 printf("%s", trans[tp]);
 return 0;

}

      </source>

Reference enum value by int

<source lang="cpp">

1. include <stdio.h>
2. include <stdlib.h>
3. include <conio.h>

enum transport {car, train, airplane, bus} tp; int main(void) {

 printf("Press a key to select transport: ");
 /* generate a new random number */
 while(!kbhit()) 
     rand();
     
 getch(); /* read and discard character */
 tp = rand() % 4;
 
 switch(tp) {
   case car: printf("car");
     break;
   case train: printf("train");
     break;
   case airplane: printf("airplane");
     break;
   case bus: printf("bus");
 }
 return 0;

}

      </source>