Accessing enum members...

[Samantha]

Hi - I am seeing enum members being used, with just the member's
name, and not the enum name.

for example:

typedef enum Fruit
{
Apple = 0,
Orange,
Banana = 0xFF
} FruitIndex;
 
 
int arrayInt[Orange]
{
more code here.....
 
}
 

Question 1 - Is Orange's index = 1 ??
Question 2 - what do you think the 0xFF hex is fox??
QUESTION 3 - in the array - why don't I have to put
[FruitIndex.Orange] to access the member??

thanks!
p.s. this is NOT a homework question - i am at work not understanding
how this stuff works.

[Ben Bacarisse]

Samantha <sa***************@gmail.comwrites:

Hi - I am seeing enum members being used, with just the member's
name, and not the enum name.

That's how they work.

for example:

      typedef enum Fruit
      {
         Apple = 0,
         Orange,
         Banana = 0xFF
       } FruitIndex;


      int arrayInt[Orange]
      {

 
This is not valid syntax.
 
        
                        more code here.....

     }
 
 
 

>

Question 1 - Is Orange's index = 1 ??

Yes, though many people would say mixing explicit values and implicit
ones is not good style. There are two common cases: either you want
to choose the values because they matter to the program or you don't
care so long as they are different. There are valid reasons to mix,
but they are not common.

Question 2 - what do you think the 0xFF hex is fox??

Sorry, no idea. Looks like an arbitrary example value.

QUESTION 3 - in the array - why don't I have to put
[FruitIndex.Orange] to access the member??

That's just how the language works. The semantics of C's enums are
very weak.

--
Ben.

[Samantha]

On Sep 4, 4:58 pm, Ben Bacarisse <[e-mail]:

Samantha <[e-mail]:

Hi - I am seeing enum members being used, with just the member's
name, and not the enum name.

That's how they work.

for example:

       typedef enum Fruit
       {
          Apple = 0,
          Orange,
          Banana = 0xFF
        } FruitIndex;

        
                       int arrayInt[Orange]
       {
 

 

This is not valid syntax.

        

                         more code here.....

 

        

                      }