C++: a_double Unary Plus and Minus: Example and Test
// This test fails in Octave and so is skipped by make check_lib_octave# include <cstdio>
# include <string>
# include <cppad/swig/cppad_swig.hpp>
bool a_double_unary_op_xam(void) {
using cppad_swig::a_double;
using cppad_swig::vec_bool;
using cppad_swig::vec_int;
using cppad_swig::vec_double;
using cppad_swig::vec_a_double;
using cppad_swig::a_fun;
using cppad_swig::sparse_rc;
using cppad_swig::sparse_rcv;
using cppad_swig::sparse_jac_work;
using cppad_swig::sparse_hes_work;
using std::string;
//// initialize return variable
bool ok = true;
//------------------------------------------------------------------------
a_double two = cppad_swig::a_double(2.0);
a_double plus_two = + two ;
a_double minus_two = - two ;
//
ok = ok && plus_two.value() == 2.0;
ok = ok && minus_two.value() == -2.0;
//return( ok );
}