Number* Rational::acoss()
{
Float* res = new Float;
Float* tmp = SCAST_FLOAT(res->convert(this));
if (fabs(tmp->number_)<=1.0)
{
res->number_=asin(tmp->number_);
delete tmp;
return res;
}
else if (tmp->number_>0)
{
complex<double> c_a(tmp->number_,0.0);
complex<double> c_res = asin(c_a);
Complex* res = new Complex;
res->exact_ = false;
res->real_ = new Float(::real(c_res));
res->imag_ = new Float(::imag(c_res));
delete tmp;
return res;
}
else
{
complex<double> c_a(fabs(tmp->number_),0.0);
complex<double> c_res = asin(c_a);
Complex* res = new Complex;
res->exact_ = false;
res->real_ = new Float(::real(c_res)+PI);
res->imag_ = new Float(0.0-::imag(c_res));
delete tmp;
return res;
}
}
void
unHide()
{
// begin example "wns.ChamaeleonConstructor.example"
// The Chamaeleon takes a pointer
Chamaeleon<A*> a(new A);
// end example
CPPUNIT_ASSERT_EQUAL( 1, a.unHide()->test() );
// begin example "wns.ChamaeleonUnHide.example"
// Create three Chamaeleons
Chamaeleon<B*> b(new B);
Chamaeleon<C*> c(new C);
Chamaeleon<A*> c_a(new C);
// unHide the real objects
B* bPtr = b.unHide();
C* cPtr = c.unHide();
A* c_aPtr = c_a.unHide();
// Check if everything works
CPPUNIT_ASSERT_EQUAL( 2, bPtr->test() );
CPPUNIT_ASSERT_EQUAL( 3, cPtr->test() );
CPPUNIT_ASSERT_EQUAL( 3, c_aPtr->test() );
// end example
delete a.unHide();
delete bPtr;
delete cPtr;
delete c_aPtr;
}
