Discussion
Assume that this code is running on 64 bit system
#include <stdio.h>
enum Xenum{
C, CPP, Java
};
int main()
{
enum Xenum var;
printf("%d",sizeof(var));
return 0;
}
Answer: C
Correct answer: 4
An enumeration variable has the size of an int - 4 bytes on the usual platforms - because the compiler stores the constant itself, not a list of them. How many enumerators the type has makes no difference. So on this system it prints 4 - and it would still be 4 if the enumeration had thirty members.
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