A Demonstration of Enumerated Constants
#include <iostream>
int main()
{
enum Days { Sunday, Monday, Tuesday,Wednesday, Thursday, Friday, Saturday };
Days today;
today = Monday;
if (today == Sunday || today == Saturday)
std::cout << " love the weekends!\n";
else
std::cout << "\nBack to work.\n";
return 0;
}An enumeration static_cast
#include <iostream>
using std::cout;
enum Language { English, French, German, Italian, Spanish };
int main() {
Language tongue = German;
tongue = static_cast<Language>(tongue + 1);
cout << "\n Current language is now " << tongue
<< std::endl;
return 0;
}Current language is now 3
An enumeration variable
#include <iostream>
using std::cout;
enum Language { English, French, German, Italian, Spanish };
int main() {
Language tongue = German;
cout << "\n Current language is " << tongue;
return 0;
}Current language is 2
Compare enum elements
#include<iostream.h>
enum color{
RED=1,
GREEN=6,
BLUE=9
};
int main()
{
enum color v1=RED,v2;
cout<<"RED="<<RED<<endl;
cout<<"GREEN="<<GREEN<<endl;
cout<<"BLUE="<<BLUE<<endl;
cout<<"v1="<<v1<<endl;
v2=GREEN;
cout<<"(v1<v2)="<<(v1<v2)<<endl;
}RED=1
GREEN=6
BLUE=9
v1=1
(v1<v2)=1
Define and output an enumeration
#include <iostream>
using std::cout;
enum Language { English, French, German, Italian, Spanish };
int main() {
cout << "\nPossible languages are:\n"
<< English << ". English\n"
<< French << ". French\n"
<< German << ". German\n"
<< Italian << ". Italian\n"
<< Spanish << ". Spanish\n";
return 0;
}Possible languages are:
0. English
1. French
2. German
3. Italian
4. Spanish
Demonstrate an enumeration.
#include <iostream>
using namespace std;
enum Letter { A, B, C, D, E };
char name[][20] = {
"Automobile",
"Bank",
"Cat",
"Day",
"eagle"
};
int main()
{
Letter how;
how = A;
cout << name[how] << "\n";
how = C;
cout << name[how] << "\n";
how = D;
cout << name[how] << "\n";
return 0;
}Automobile
Cat
Day
Return enum from a function
#include <iostream>
enum ERR_CODE { SUCCESS, ERROR };
ERR_CODE f(int, int&, int&);
int main()
{
int number = 2, squared, cubed;
ERR_CODE result;
result = f(number, squared, cubed);
if (result == SUCCESS)
{
;
}
else
std::cout << "Error encountered!!\n";
return 0;
}
ERR_CODE f(int n, int &rSquared, int &rCubed)
{
return ERROR; // simple error code
}Error encountered!!
Using consts and enums in Arrays
#include <iostream>
using namespace std;
int main()
{
enum WeekDays { Sun, Mon, Tue,Wed, Thu, Fri, Sat, DaysInWeek };
int ArrayWeek[DaysInWeek] = { 10, 20, 30, 40, 50, 60, 70 };
cout << "The value at Tuesday is: " << ArrayWeek[Tue];
return 0;
}
