Listing 5: native_wrap.cc.

#include "native_library/native.h"
#include "native_wrap.h"
extern "C" { 
  double calcEllipse_wrap( EllipseData_wrap input)
  {
    EllipseData data = {input.r1, input.r2 };
    return calcEllipse( data);
  };
  double calcCircle_wrap( double radius)
  {
    return calcCircle( radius);
  }
} /* extern "C" */