passing pointer of multidimensional struct to a function/ class

[ard24]

Hi all,
I’m trying to pass a pointer of a multidimensional struct (Array of struct) to a function.

struct data{
	int t1;
	int t2;
};

data Data1[10];

void showAll(struct data *ptData)
{
for(int i = 0; i < 10; i++)
  {
  Serial.println( *((ptData->t1)+i) ); 
  }
}

My problem is, that I don’t know how to “index” the pointer on the struct array.
Do you maybee have a hint for me?
Thank you very much!

[gfvalvo]

A single dimension array of structs is not a "multidimensional struct". Use:

ptData[i].t1

or

(ptData+i)->t1

[ard24]

Hi gfvalvo,
thank you very much! Your suggestion works in the shown example which I used to simplyfy my question.

I'm sorry, but my actuall project contains multiple files (.cpp and .h) which are also containing a class.

using ptData*.t1 seems to be one step ahead, but the compiler still gives me this error meassages:*
invalid use of incomplete type 'struct data'
and
in file included from class.h note forward declaration of struct data..
Do you have another hint for me?
Thank you very much!

[gfvalvo]

ard24:
Do you have another hint for me?

Impossible given the information provided.

[david_2018]

Where do you actually declare the struct? The compiler is likely complaining because it does not know enough about the struct.