Function

[mayu03]

I have a class cat and i am trying to pass an array of cat obiject to a function as well as valid components of the array.
void show(Cat cats[], int i)
What is incorrect in my line?

 

[Cagliostro]

so far everything is correct.

Ion Filipski

ICQ: 95034075
AIM: IonFilipski
filipski@excite.com

 

[mayu03]

So why i am getting this error?
error C2065: 'Cat' : undeclared identifier

 

[Salem]

Posting more code (rather than one line at a time) would be helpful.


--

http://www.catb.org/~esr/faqs/smart-questions.html

 

[Cagliostro]

'Cat' : undeclared identifier
means in your code Cat is not declared. Declare it first and everything will be fine.

Ion Filipski

ICQ: 95034075
AIM: IonFilipski
filipski@excite.com

 

[mayu03]

I have a declaraliton in my main function:
Here how my code looks:

void show(Cat cats[], int i)
{.........}

void main
{
int new_size=SIZE;
Cat *cats=new Cat[new_size];.......
}

 

[Zyrenthian]

Kinda silly to ask but did you #include cat.h ?

Matt

 

[mayu03]

my class not in a sepate file header. everything in one .cpp

 

[Zyrenthian]

Is the order of declaration that cat is before the funtion? If not, try forward declarations

EX: .cpp file

// beginning of file
class Cat;
class Dog;

// functions

// end of file

Matt

 

[LazyMe]

Maybe it's defined after being used?
In that case you should forward declare it.

Greetings,
Rick

 

[LazyMe]

Yeah, Zyrenthian obviously types faster than I do....

Greetings,
Rick

 

[Zyrenthian]

LOL ;-) (typed that in 1.456 seconds.. )

Matt

 

[mayu03]

I try this way:
...
int new_size=SIZE;
Cat *cats=new Cat[new_size];
.......
void show(Cat cats[], int i)
{.........}
void main
{.... }
and this way
.......
void show(Cat cats[], int i)
{.........}
int new_size=SIZE;
Cat *cats=new Cat[new_size];
void main
{.... }

Still not working the same error.

 

[Zyrenthian]

Yes.. but where do you declare the type (class struct typdef etc) for "Cats" ?

Matt

 

[Salem]

As in

struct Cat {
    char name[100];
    int meow;
};

--

http://www.catb.org/~esr/faqs/smart-questions.html

 

[LazyMe]

yes, but WHERE?? --> BEFORE you're using it or AFTER you're using it??

Greetings,
Rick

 

[Cagliostro]

put this at the first line in your code:
struct Cat;

Ion Filipski

ICQ: 95034075
AIM: IonFilipski
filipski@excite.com

 

[mayu03]

I found my error.I was placing function before class and my compiler can't associate this function with class. Thank you all for the help.

 

[KernelObject]

Just musing,

the postings by LazyMe & Zyrenthian by themselves have been good examples of 'forward declarations'



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