1 | /* simple example for using class array<> |
2 | * (C) Copyright Nicolai M. Josuttis 2001. |
3 | * Distributed under the Boost Software License, Version 1.0. (See |
4 | * accompanying file LICENSE_1_0.txt or copy at |
5 | * http://www.boost.org/LICENSE_1_0.txt) |
6 | */ |
7 | |
8 | #include <iostream> |
9 | #include <boost/array.hpp> |
10 | |
11 | template <typename T> |
12 | void test_static_size (const T& cont) |
13 | { |
14 | int tmp[T::static_size]; |
15 | for (unsigned i=0; i<T::static_size; ++i) { |
16 | tmp[i] = int(cont[i]); |
17 | } |
18 | for (unsigned j=0; j<T::static_size; ++j) { |
19 | std::cout << tmp[j] << ' '; |
20 | } |
21 | std::cout << std::endl; |
22 | } |
23 | |
24 | int main() |
25 | { |
26 | // define special type name |
27 | typedef boost::array<float,6> Array; |
28 | |
29 | // create and initialize an array |
30 | const Array a = { .elems: { 42.42f } }; |
31 | |
32 | // use some common STL container operations |
33 | std::cout << "static_size: " << a.size() << std::endl; |
34 | std::cout << "size: " << a.size() << std::endl; |
35 | // Can't use std::boolalpha because it isn't portable |
36 | std::cout << "empty: " << (a.empty()? "true" : "false" ) << std::endl; |
37 | std::cout << "max_size: " << a.max_size() << std::endl; |
38 | std::cout << "front: " << a.front() << std::endl; |
39 | std::cout << "back: " << a.back() << std::endl; |
40 | std::cout << "[0]: " << a[0] << std::endl; |
41 | std::cout << "elems: " ; |
42 | |
43 | // iterate through all elements |
44 | for (Array::const_iterator pos=a.begin(); pos<a.end(); ++pos) { |
45 | std::cout << *pos << ' '; |
46 | } |
47 | std::cout << std::endl; |
48 | test_static_size(cont: a); |
49 | |
50 | // check copy constructor and assignment operator |
51 | Array b(a); |
52 | Array c; |
53 | c = a; |
54 | if (a==b && a==c) { |
55 | std::cout << "copy construction and copy assignment are OK" |
56 | << std::endl; |
57 | } |
58 | else { |
59 | std::cout << "copy construction and copy assignment are BROKEN" |
60 | << std::endl; |
61 | } |
62 | |
63 | typedef boost::array<double,6> DArray; |
64 | typedef boost::array<int,6> IArray; |
65 | IArray ia = { .elems: { 1, 2, 3, 4, 5, 6 } } ; // extra braces silence GCC warning |
66 | DArray da; |
67 | da = ia; |
68 | da.assign(value: 42); |
69 | |
70 | return 0; // makes Visual-C++ compiler happy |
71 | } |
72 | |
73 | |