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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 double_ode.cpp}
Double Speed: Ode Solution
##########################
Specifications
**************
See :ref:`link_ode-name` .
Implementation
**************
{xrst_spell_off}
{xrst_code cpp} */
# include <cstring>
# include <cppad/utility/vector.hpp>
# include <cppad/speed/ode_evaluate.hpp>
# include <cppad/speed/uniform_01.hpp>
// Note that CppAD uses global_option["memory"] at the main program level
# include <map>
extern std::map<std::string, bool> global_option;
bool link_ode(
size_t size ,
size_t repeat ,
CppAD::vector<double> &x ,
CppAD::vector<double> &jacobian
)
{
if(global_option["onetape"]||global_option["atomic"]||global_option["optimize"])
return false;
// -------------------------------------------------------------
// setup
assert( x.size() == size );
size_t n = size;
size_t m = 0;
CppAD::vector<double> f(n);
while(repeat--)
{ // choose next x value
uniform_01(n, x);
// evaluate function
CppAD::ode_evaluate(x, m, f);
}
size_t i;
for(i = 0; i < n; i++)
jacobian[i] = f[i];
return true;
}
/* {xrst_code}
{xrst_spell_on}
{xrst_end double_ode.cpp}
*/
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