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// SPDX-License-Identifier: EPL-2.0 OR GPL-2.0-or-later
// SPDX-FileCopyrightText: Bradley M. Bell <bradbell@seanet.com>
// SPDX-FileContributor: 2003-22 Bradley M. Bell
// ----------------------------------------------------------------------------
/*
{xrst_begin integer.cpp}
Convert From AD to Integer: Example and Test
############################################
{xrst_literal
// BEGIN C++
// END C++
}
{xrst_end integer.cpp}
*/
// BEGIN C++
# include <cppad/cppad.hpp>
bool Integer(void)
{ bool ok = true;
using CppAD::AD;
using CppAD::Integer;
// domain space vector
size_t n = 2;
CPPAD_TESTVECTOR(AD<double>) x(n);
x[0] = 3.5;
x[1] = 4.5;
// check integer before recording
ok &= (Integer(x[0]) == 3);
ok &= (Integer(x[1]) == 4);
// start recording
// declare independent variables and start tape recording
CppAD::Independent(x);
// check integer during recording
ok &= (Integer(x[0]) == 3);
ok &= (Integer(x[1]) == 4);
// check integer for VecAD element
CppAD::VecAD<double> v(1);
AD<double> zero(0);
v[zero] = 2;
ok &= (Integer(v[zero]) == 2);
// range space vector
size_t m = 1;
CPPAD_TESTVECTOR(AD<double>) y(m);
y[0] = - x[1];
// create f: x -> y and stop recording
CppAD::ADFun<double> f(x, y);
// check integer after recording
ok &= (Integer(x[0]) == 3.);
ok &= (Integer(x[1]) == 4.);
ok &= (Integer(y[0]) == -4.);
return ok;
}
// END C++
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