how to return an array of 2 ints?

[rik]

Hi,

I need to write a function that returns 2 file handles, which are just ints, so I thought to declare the function like

int[] getFileHandles();

but MT5 didn't support returning an anonymous sized array, and wouldn't let me return a pointer to it or even to specify the size like

int* getFileHandles() or int[2] getFileHandles();

So I ended up creating a class with 2 int members and then having to call new to create it, then I'll have to delete it somewhere, which is all kind of heavy weight and a pain.

I must be missing the obvious easy way to do this, can someone show it to me?

thanks,

Rik

[Alain Verleyen]

rik:

Hi,

I need to write a function that returns 2 file handles, which are just ints, so I thought to declare the function like

int[] getFileHandles();

but MT5 didn't support returning an anonymous sized array, and wouldn't let me return a pointer to it or even to specify the size like

int* getFileHandles() or int[2] getFileHandles();

So I ended up creating a class with 2 int members and then having to call new to create it, then I'll have to delete it somewhere, which is all kind of heavy weight and a pain.

I must be missing the obvious easy way to do this, can someone show it to me?

thanks,

Rik

You have to use parameters passed by reference :

void getFileHandles(int& handle1, int& handle2)
{
  handle1 = ...
  handle2 = ...
  ...
}

You can also pass an array as parameter.

[rik]

thanks, that will work.  Also I found https://www.mql5.com/en/articles/567 which was useful.

Rik