Improve resource leak checking

[orbitcowboy]

I try to improve resource leak checking of wxWidgets code.

For example: wxGrid::GetCellRenderer() returns a pointer that must be called after its usage with wxGridCellRenderer::DecRef() to release internally allocated resources.

Example code:
Here Cppcheck should not produce a warning, because the resource is deallocated correctly, but it does.

void NoLeak(const wxGrid &grid)
{
    wxGridCellRenderer *renderer = grid.GetCellRenderer(0, 0);
    renderer->DecRef(); // << False positive: resource leak
}

Library configuration

  <resource>
    <alloc init="false">wxGrid::GetCellRenderer</alloc>
    <dealloc>wxGridCellRenderer::DecRef</dealloc>
  </resource>

Is there something wrong with the dealloc configuration?

[Daniel Marjamäki]

At the moment.. the dealloc function is supposed to take the allocated memory as argument. So sorry.. this is probably out of scope for now.

[Daniel Marjamäki]

Feel free to open a ticket.

I am not personally very interested to improve the leaks checking. But if anybody else wants to do it then I would welcome that.

[orbitcowboy]

Ok, thanks. I'll create a ticket.