/* $Id: test_vector.cpp 2506 2012-10-24 19:36:49Z bradbell $ */
/* --------------------------------------------------------------------------
CppAD: C++ Algorithmic Differentiation: Copyright (C) 2003-12 Bradley M. Bell
CppAD is distributed under multiple licenses. This distribution is under
the terms of the
Eclipse Public License Version 1.0.
A copy of this license is included in the COPYING file of this distribution.
Please visit http://www.coin-or.org/CppAD/ for information on other licenses.
-------------------------------------------------------------------------- */
/*
Test deprecated CPPAD_TEST_VECTOR macro (should use CPPAD_TESTVECTOR instead
*/
# include <cppad/cppad.hpp>
// this test is coppied from example/add.cpp on 2012-06-06
bool test_vector(void)
{ bool ok = true;
using CppAD::AD;
using CppAD::NearEqual;
// domain space vector
size_t n = 1;
double x0 = 0.5;
CPPAD_TEST_VECTOR< AD<double> > x(n);
x[0] = x0;
// declare independent variables and start tape recording
CppAD::Independent(x);
// some binary addition operations
AD<double> a = x[0] + 1.; // AD<double> + double
AD<double> b = a + 2; // AD<double> + int
AD<double> c = 3. + b; // double + AD<double>
AD<double> d = 4 + c; // int + AD<double>
// range space vector
size_t m = 1;
CPPAD_TEST_VECTOR< AD<double> > y(m);
y[0] = d + x[0]; // AD<double> + AD<double>
// create f: x -> y and stop tape recording
CppAD::ADFun<double> f(x, y);
// check value
ok &= NearEqual(y[0] , 2. * x0 + 10, 1e-10 , 1e-10);
// forward computation of partials w.r.t. x[0]
CPPAD_TEST_VECTOR< double > dx(n);
CPPAD_TEST_VECTOR< double > dy(m);
dx[0] = 1.;
dy = f.Forward(1, dx);
ok &= NearEqual(dy[0], 2., 1e-10, 1e-10);
// reverse computation of derivative of y[0]
CPPAD_TEST_VECTOR< double > w(m);
CPPAD_TEST_VECTOR< double > dw(n);
w[0] = 1.;
dw = f.Reverse(1, w);
ok &= NearEqual(dw[0], 2., 1e-10, 1e-10);
// use a VecAD<Base>::reference object with addition
CppAD::VecAD<double> v(1);
AD<double> zero(0);
v[zero] = a;
AD<double> result = v[zero] + 2;
ok &= (result == b);
return ok;
}