[Flightgear-devel] Potential issue with magnetic variation?

[Tom P <zo...@gm...>]

Hi

While building fgfs from CVS on Windows, I've noticed the following warning.
1>c:\flightgear\flightgear\src\network\native_ctrls.cxx(439) : warning 
C4800: 'double' : forcing value to bool 'true' or 'false' (performance 
warning)

It's telling that the magnetic variation gets truncated to a boolean 
when assigned to the property tree.
Is that correct?

File: native_ctrls.cxx

    node = fgGetNode( "/environment", true );
    node->setDoubleValue( "wind-speed-kt", net->wind_speed_kt );
    node->setDoubleValue( "wind-from-heading-deg", net->wind_dir_deg );
    node->setDoubleValue( "turbulence/magnitude-norm", 
net->turbulence_norm );
    node->setBoolValue( "magnetic-variation-deg", net->magvar );
             ^^^^
  Tom