initial checkin of Nico's array library

[SVN r7678]

array3.cpp

@@ -0,0 +1,48 @@
+/* example for using class array<>
+ */
+#include <string>
+#include <iostream>
+#include <boost/array.hpp>
+
+template <class T>
+void print_elements (const T& x);
+
+int main()
+{
+    // create array of four seasons
+    boost::array<std::string,4> seasons = {
+        { "spring", "summer", "autumn", "winter" }
+    };
+
+    // copy and change order
+    boost::array<std::string,4> seasons_orig = seasons;
+    for (unsigned i=seasons.size()-1; i>0; --i) {
+        swap(seasons.at(i),seasons.at((i+1)%seasons.size()));
+    }
+
+    std::cout << "one way:   ";
+    print_elements(seasons);
+
+    // try swap()
+    std::cout << "other way: ";
+    swap(seasons,seasons_orig);
+    print_elements(seasons);
+
+    // try reverse iterators
+    std::cout << "reverse:   ";
+    for (boost::array<std::string,4>::reverse_iterator pos
+           =seasons.rbegin(); pos<seasons.rend(); ++pos) {
+        std::cout << " " << *pos;
+    }
+    std::cout << std::endl;
+}
+
+template <class T>
+void print_elements (const T& x)
+{
+    for (unsigned i=0; i<x.size(); ++i) {
+        std::cout << " " << x[i];
+    }
+    std::cout << std::endl;
+}
+