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
11template <typename T>
12void 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
24int 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

source code of boost/libs/array/test/array5.cpp