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| author | Sven Eisenhauer <sven@sven-eisenhauer.net> | 2023-11-10 15:11:48 +0100 |
|---|---|---|
| committer | Sven Eisenhauer <sven@sven-eisenhauer.net> | 2023-11-10 15:11:48 +0100 |
| commit | 33613a85afc4b1481367fbe92a17ee59c240250b (patch) | |
| tree | 670b842326116b376b505ec2263878912fca97e2 /Bachelor/Prog1/examples/ch08/Fig08_14 | |
| download | Studium-master.tar.gz Studium-master.tar.bz2 | |
Diffstat (limited to 'Bachelor/Prog1/examples/ch08/Fig08_14')
| -rw-r--r-- | Bachelor/Prog1/examples/ch08/Fig08_14/Fig08_14.cpp | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/Bachelor/Prog1/examples/ch08/Fig08_14/Fig08_14.cpp b/Bachelor/Prog1/examples/ch08/Fig08_14/Fig08_14.cpp new file mode 100644 index 0000000..7fda752 --- /dev/null +++ b/Bachelor/Prog1/examples/ch08/Fig08_14/Fig08_14.cpp @@ -0,0 +1,134 @@ +// Fig. 8.14: fig08_14.cpp
+// Demonstrating standard library class vector.
+#include <iostream>
+
+using std::cout;
+using std::cin;
+using std::endl;
+
+#include <iomanip>
+
+using std::setw;
+
+#include <vector>
+
+using std::vector;
+
+void outputVector( const vector< int > & );
+void inputVector( vector< int > & );
+
+int main()
+{
+ vector< int > integers1( 7 ); // 7-element vector< int >
+ vector< int > integers2( 10 ); // 10-element vector< int >
+
+ // print integers1 size and contents
+ cout << "Size of vector integers1 is "
+ << integers1.size()
+ << "\nvector after initialization:\n";
+ outputVector( integers1 );
+
+ // print integers2 size and contents
+ cout << "\nSize of vector integers2 is "
+ << integers2.size()
+ << "\nvector after initialization:\n";
+ outputVector( integers2 );
+
+ // input and print integers1 and integers2
+ cout << "\nInput 17 integers:\n";
+ inputVector( integers1 );
+ inputVector( integers2 );
+
+ cout << "\nAfter input, the vectors contain:\n"
+ << "integers1:\n";
+ outputVector( integers1 );
+ cout << "integers2:\n";
+ outputVector( integers2 );
+
+ // use overloaded inequality (!=) operator
+ cout << "\nEvaluating: integers1 != integers2\n";
+
+ if ( integers1 != integers2 )
+ cout << "integers1 and integers2 are not equal\n";
+
+ // create vector integers3 using integers1 as an
+ // initializer; print size and contents
+ vector< int > integers3( integers1 ); // copy constructor
+
+ cout << "\nSize of vector integers3 is "
+ << integers3.size()
+ << "\nvector after initialization:\n";
+ outputVector( integers3 );
+
+
+ // use overloaded assignment (=) operator
+ cout << "\nAssigning integers2 to integers1:\n";
+ integers1 = integers2;
+
+ cout << "integers1:\n";
+ outputVector( integers1 );
+ cout << "integers2:\n";
+ outputVector( integers1 );
+
+ // use overloaded equality (==) operator
+ cout << "\nEvaluating: integers1 == integers2\n";
+
+ if ( integers1 == integers2 )
+ cout << "integers1 and integers2 are equal\n";
+
+ // use overloaded subscript operator to create rvalue
+ cout << "\nintegers1[5] is " << integers1[ 5 ];
+
+ // use overloaded subscript operator to create lvalue
+ cout << "\n\nAssigning 1000 to integers1[5]\n";
+ integers1[ 5 ] = 1000;
+ cout << "integers1:\n";
+ outputVector( integers1 );
+
+ // attempt to use out of range subscript
+ cout << "\nAttempt to assign 1000 to integers1.at( 15 )"
+ << endl;
+ integers1.at( 15 ) = 1000; // ERROR: out of range
+
+ return 0;
+
+} // end main
+
+// output vector contents
+void outputVector( const vector< int > &array )
+{
+ for ( int i = 0; i < array.size(); i++ ) {
+ cout << setw( 12 ) << array[ i ];
+
+ if ( ( i + 1 ) % 4 == 0 ) // 4 numbers per row of output
+ cout << endl;
+
+ } // end for
+
+ if ( i % 4 != 0 )
+ cout << endl;
+
+} // end function outputVector
+
+// input vector contents
+void inputVector( vector< int > &array )
+{
+ for ( int i = 0; i < array.size(); i++ )
+ cin >> array[ i ];
+
+} // end function inputVector
+
+/**************************************************************************
+ * (C) Copyright 1992-2003 by Deitel & Associates, Inc. and Prentice *
+ * Hall. All Rights Reserved. *
+ * *
+ * DISCLAIMER: The authors and publisher of this book have used their *
+ * best efforts in preparing the book. These efforts include the *
+ * development, research, and testing of the theories and programs *
+ * to determine their effectiveness. The authors and publisher make *
+ * no warranty of any kind, expressed or implied, with regard to these *
+ * programs or to the documentation contained in these books. The authors *
+ * and publisher shall not be liable in any event for incidental or *
+ * consequential damages in connection with, or arising out of, the *
+ * furnishing, performance, or use of these programs. *
+ *************************************************************************/
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