dev-cpp-users

RE: [Dev-C++] Problem with structs

[<Mat...@Ve...>]

There's a reason this doesn't work, I suspect:
Declaring a MyStruct2 creates a MyStruct1, which creates a MyStruct2, which
creates MyStruct1, which creates a...

How could that ever work? I really do not think it's possible with any given
amount of memory.

Please correct me if I'm wrong, but I can't see this ever being possible.

-----Original Message-----
From: dev...@li...
[mailto:dev...@li...]On Behalf Of Farzan
Hajian
Sent: Friday, March 11, 2005 12:25 PM
To: dev...@li...
Subject: [Dev-C++] Problem with structs


Hi friends,
I want to declare two structures like this:

struct MyStruct1
{
     int i;
     MyStruct2 s2;
};
struct MyStruct2
{
     float f;
     MyStruct1 s1;
};

but there is a compiler error says "'MyStruct2' is used as a type, but is  
not defined as a type."

Then I declare MyStruct2 before MyStruct1 as below:

struct MyStruct2; // Declaring MyStruct2
struct MyStruct1
{
     int i;
     MyStruct2 s2;  // **** Causes error *****
};
struct MyStruct2
{
     float f;
     MyStruct1 s1;
};

but now there is an another error refers to the line  "MyStruct2 s2;" and  
says "`s2' has incomplete type"

Now how can I solve this??

Thanks,


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Re: [Dev-C++] Problem with structs

[<in...@vp...>]

Hi.

I hope, that would work following code:
struct MyStruct2; // Declaring MyStruct2
{
      int i;
      MyStruct2* s2;
};
struct MyStruct2
{
      float f;
      MyStruct1* s1;
};

Try to use pointers - they have identical sizes for every type.

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mailto:in...@vp...
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Re: [Dev-C++] Problem with structs

[Alfred P. R. <al...@ya...>]

Try 
typedef struct
{
...
} MyStruct1;
 
That's where the typedef error is coming from.


Farzan Hajian <far...@ho...> wrote:
Hi friends,
I want to declare two structures like this:

struct MyStruct1
{
int i;
MyStruct2 s2;
};
struct MyStruct2
{
float f;
MyStruct1 s1;
};

but there is a compiler error says "'MyStruct2' is used as a type, but is 
not defined as a type."
<snip>



Alfred P. Reaud