1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
|
// SPDX-License-Identifier: EPL-2.0 OR GPL-2.0-or-later
// SPDX-FileCopyrightText: Bradley M. Bell <bradbell@seanet.com>
// SPDX-FileContributor: 2024 Bradley M. Bell
// ---------------------------------------------------------------------------
/*
{xrst_begin valvector_get_started.cpp}
Getting Started Using valvector as a CppAD Base Class
#####################################################
{xrst_literal
// BEGIN C++
// END C++
}
{xrst_end valvector_get_started.cpp}
-------------------------------------------------------------------------------
*/
// BEGIN C++
# include <cppad/example/valvector/class.hpp>
# include <cppad/cppad.hpp>
bool get_started(void)
{ // ok
bool ok = true;
//
// ad_valvector
typedef CppAD::AD<valvector> ad_valvector;
//
// ax
CPPAD_TESTVECTOR( ad_valvector ) ax(2);
ax[0] = valvector( {1.0} );
ax[1] = valvector( {2.0} );
CppAD::Independent(ax);
//
// f
CPPAD_TESTVECTOR( ad_valvector ) ay(1);
ay[0] = ax[0] * ax[1];
CppAD::ADFun<valvector> f(ax, ay);
//
// x
CPPAD_TESTVECTOR( valvector ) x(2);
x[0] = valvector( {1.0, 2.0, 3.0} );
x[1] = valvector( {4.0, 3.0, 2.0} );
//
// y
CPPAD_TESTVECTOR( valvector ) y(1);
y = f.Forward(0, x);
//
// ok
valvector check;
check = valvector( {4.0, 6.0, 6.0} );
ok &= y[0] == check;
//
// dw
CPPAD_TESTVECTOR( valvector ) w(1), dw(2);
w[0] = valvector( 1.0 );
dw = f.Reverse(1, w);
//
// ok
ok &= dw[0] == x[1];
ok &= dw[1] == x[0];
//
return ok;
}
// END C++
|
