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| author | Fuwn <[email protected]> | 2024-04-07 23:18:32 -0700 |
|---|---|---|
| committer | Fuwn <[email protected]> | 2024-04-07 23:18:32 -0700 |
| commit | c1b6ffe70bd281c6c230fd63fabcaac2aff47514 (patch) | |
| tree | e8af3b1782a7cd0754590ed618fddc1bdb9b7385 /chapter3/sequence_test.cxx | |
| download | dscode-c1b6ffe70bd281c6c230fd63fabcaac2aff47514.tar.xz dscode-c1b6ffe70bd281c6c230fd63fabcaac2aff47514.zip | |
Diffstat (limited to 'chapter3/sequence_test.cxx')
| -rw-r--r-- | chapter3/sequence_test.cxx | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/chapter3/sequence_test.cxx b/chapter3/sequence_test.cxx new file mode 100644 index 0000000..f140203 --- /dev/null +++ b/chapter3/sequence_test.cxx @@ -0,0 +1,119 @@ +// FILE: sequence_test.cxx
+// An interactive test program for the new sequence class
+#include <cctype> // Provides toupper
+#include <iostream> // Provides cout and cin
+#include <cstdlib> // Provides EXIT_SUCCESS
+#include "sequence1.h" // With value_type defined as double
+using namespace std;
+using namespace main_savitch_3;
+
+// PROTOTYPES for functions used by this test program:
+void print_menu( );
+// Postcondition: A menu of choices for this program has been written to cout.
+
+char get_user_command( );
+// Postcondition: The user has been prompted to enter a one character command.
+// The next character has been read (skipping blanks and newline characters),
+// and this character has been returned.
+
+void show_sequence(sequence display);
+// Postcondition: The items on display have been printed to cout (one per line).
+
+double get_number( );
+// Postcondition: The user has been prompted to enter a real number. The
+// number has been read, echoed to the screen, and returned by the function.
+
+
+int main( )
+{
+ sequence test; // A sequence that we�ll perform tests on
+ char choice; // A command character entered by the user
+
+ cout << "I have initialized an empty sequence of real numbers." << endl;
+
+ do
+ {
+ print_menu( );
+ choice = toupper(get_user_command( ));
+ switch (choice)
+ {
+ case '!': test.start( );
+ break;
+ case '+': test.advance( );
+ break;
+ case '?': if (test.is_item( ))
+ cout << "There is an item." << endl;
+ else
+ cout << "There is no current item." << endl;
+ break;
+ case 'C': if (test.is_item( ))
+ cout << "Current item is: " << test.current( ) << endl;
+ else
+ cout << "There is no current item." << endl;
+ break;
+ case 'P': show_sequence(test);
+ break;
+ case 'S': cout << "Size is " << test.size( ) << '.' << endl;
+ break;
+ case 'I': test.insert(get_number( ));
+ break;
+ case 'A': test.attach(get_number( ));
+ break;
+ case 'R': test.remove_current( );
+ cout << "The current item has been removed." << endl;
+ break;
+ case 'Q': cout << "Ridicule is the best test of truth." << endl;
+ break;
+ default: cout << choice << " is invalid." << endl;
+ }
+ }
+ while ((choice != 'Q'));
+
+ return EXIT_SUCCESS;
+}
+
+void print_menu( )
+// Library facilities used: iostream.h
+{
+ cout << endl; // Print blank line before the menu
+ cout << "The following choices are available: " << endl;
+ cout << " ! Activate the start( ) function" << endl;
+ cout << " + Activate the advance( ) function" << endl;
+ cout << " ? Print the result from the is_item( ) function" << endl;
+ cout << " C Print the result from the current( ) function" << endl;
+ cout << " P Print a copy of the entire sequence" << endl;
+ cout << " S Print the result from the size( ) function" << endl;
+ cout << " I Insert a new number with the insert(...) function" << endl;
+ cout << " A Attach a new number with the attach(...) function" << endl;
+ cout << " R Activate the remove_current( ) function" << endl;
+ cout << " Q Quit this test program" << endl;
+}
+
+char get_user_command( )
+// Library facilities used: iostream
+{
+ char command;
+
+ cout << "Enter choice: ";
+ cin >> command; // Input of characters skips blanks and newline character
+
+ return command;
+}
+
+void show_sequence(sequence display)
+// Library facilities used: iostream
+{
+ for (display.start( ); display.is_item( ); display.advance( ))
+ cout << display.current( ) << endl;
+}
+
+double get_number( )
+// Library facilities used: iostream
+{
+ double result;
+
+ cout << "Please enter a real number for the sequence: ";
+ cin >> result;
+ cout << result << " has been read." << endl;
+ return result;
+}
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