I changed that to:

if( sysFunc->hostReturnInMemory )
{
  int vv=1;
  if ( !( descr->returnType.GetObjectType()->flags & COMPLEX_RETURN_MASK )  &&
	 ( descr->returnType.GetObjectType()->flags & asOBJ_APP_CLASS_ALLFLOATS ) &&
	   descr->returnType.GetSizeInMemoryBytes() <= 8 )
   vv--;
 
  // The return is made in memory
  callConv += vv;
}

And the call to operator+ is competed succesfully, using the armFuncR0 function. Then operator= is called, but not the one defined in the class´ definition - nevertheless the assertion passes. Now I´m getting an error in the ByValue(...) function. I´ll investigate a little to see what´s going on here. BTW, ByValue(...) is being called with the armFunc function.

I changed that to:

if( sysFunc->hostReturnInMemory )
{
  if ( !descr->returnType.IsObject()		    ||
   (    descr->returnType.IsObject()		   &&
    ( descr->returnType.GetObjectType()->flags & COMPLEX_RETURN_MASK )  &&
	  !( descr->returnType.GetObjectType()->flags & asOBJ_APP_CLASS_ALLFLOATS )&&
		 descr->returnType.GetSizeInMemoryBytes() > 8
   )
	 )
  {
   // The return is made in memory
   callConv++;
  }
}

And the call to operator+ is competed succesfully, using the armFuncR0 function. Then operator= is called, but not the one defined in the class´ definition - nevertheless the assertion passes. Now I´m getting an error in the ByValue(...) function. I´ll investigate a little to see what´s going on here. BTW, ByValue(...) is being called with the armFunc function.