1   // Fig. 7.12: fig07_12.cpp
 2   // static array initialization and automatic array initialization.
 3   #include <iostream>
 4   #include <array>
 5   using namespace std;
 6
 7   void staticArrayInit(); // function prototype
 8   void automaticArrayInit(); // function prototype
 9   const size_t arraySize = 3;
10
11   int main()
12   {
13      cout << "First call to each function: ";
14      staticArrayInit();
15      automaticArrayInit();
16
17      cout << " Second call to each function: ";
18      staticArrayInit();
19      automaticArrayInit();
20      cout << endl;
21   } // end main
22
23   // function to demonstrate a static local array
24   void staticArrayInit( void )
25   {
26      // initializes elements to 0 first time function is called  
27      static array< int, arraySize > array1; // static local array
28
29      cout << " Values on entering staticArrayInit: ";
30
31      // output contents of array1
32      for ( size_t i = 0; i < array1.size(); ++i )
33         cout << "array1[" << i << "] = " << array1[ i ] << "  ";
34
35      cout << " Values on exiting staticArrayInit: ";
36
37      // modify and output contents of array1
38      for ( size_t j = 0; j < array1.size(); ++j )
39         cout << "array1[" << j << "] = " << ( array1[ j ] += 5 ) << "  ";
40   } // end function staticArrayInit
41
42   // function to demonstrate an automatic local array
43   void automaticArrayInit( void )
44   {
45      // initializes elements each time function is called                  
46      array< int, arraySize > array2 = { 1, 2, 3 }; // automatic local array
47
48      cout << " Values on entering automaticArrayInit: ";
49
50      // output contents of array2
51      for ( size_t i = 0; i < array2.size(); ++i )
52         cout << "array2[" << i << "] = " << array2[ i ] << "  ";
53
54      cout << " Values on exiting automaticArrayInit: ";
55
56      // modify and output contents of array2
57      for ( size_t j = 0; j < array2.size(); ++j )
58         cout << "array2[" << j << "] = " << ( array2[ j ] += 5 ) << "  ";
59   } // end function automaticArrayInit