1 | // Copyright 2002 The Trustees of Indiana University. |
2 | |
3 | // Use, modification and distribution is subject to the Boost Software |
4 | // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at |
5 | // http://www.boost.org/LICENSE_1_0.txt) |
6 | |
7 | // Boost.MultiArray Library |
8 | // Authors: Ronald Garcia |
9 | // Jeremy Siek |
10 | // Andrew Lumsdaine |
11 | // See http://www.boost.org/libs/multi_array for documentation. |
12 | |
13 | // foreach_test.cpp |
14 | // Let's see if this stuff works |
15 | |
16 | #include "boost/multi_array.hpp" |
17 | #include "for_each.hpp" |
18 | #include <algorithm> |
19 | |
20 | struct times_five { |
21 | double operator()(const int& val) { return val*5.0; } |
22 | }; |
23 | |
24 | |
25 | int main() { |
26 | |
27 | typedef boost::multi_array<double,2> array; |
28 | |
29 | double data[] = { |
30 | 1.0, 2.0, 3.0, |
31 | 4.0, 5.0, 6.0, |
32 | 7.0, 8.0, 9.0 |
33 | }; |
34 | const int data_size=9; |
35 | |
36 | array A(boost::extents[3][3]); |
37 | A.assign(begin: data,end: data+data_size); |
38 | |
39 | #if 0 |
40 | std::copy(A.data(),A.data()+A.num_elements(), |
41 | std::ostream_iterator<double>(std::cout,"," )); |
42 | |
43 | std::cout << "\n" ; |
44 | #endif |
45 | for_each(A,xform: times_five()); |
46 | |
47 | #if 0 |
48 | std::copy(A.data(),A.data()+A.num_elements(), |
49 | std::ostream_iterator<double>(std::cout,"," )); |
50 | |
51 | std::cout << "\n" ; |
52 | #endif |
53 | return 0; |
54 | } |
55 | |