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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/Prog2/Codebeispiele/3_ch15/FIG15_05.CPP | |
| download | Studium-master.tar.gz Studium-master.tar.bz2 | |
Diffstat (limited to 'Bachelor/Prog2/Codebeispiele/3_ch15/FIG15_05.CPP')
| -rw-r--r-- | Bachelor/Prog2/Codebeispiele/3_ch15/FIG15_05.CPP | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/Bachelor/Prog2/Codebeispiele/3_ch15/FIG15_05.CPP b/Bachelor/Prog2/Codebeispiele/3_ch15/FIG15_05.CPP new file mode 100644 index 0000000..6fc20c4 --- /dev/null +++ b/Bachelor/Prog2/Codebeispiele/3_ch15/FIG15_05.CPP @@ -0,0 +1,75 @@ +// Fig. 16.5: fig16_05.cpp
+// Demonstrating member functions related to size and capacity.
+#include <iostream>
+
+using std::cout;
+using std::endl;
+using std::cin;
+using std::boolalpha;
+
+#include <string>
+
+using std::string;
+
+void printStatistics( const string & );
+
+int main()
+{
+ string string1;
+
+ cout << "Statistics before input:\n" << boolalpha;
+ printStatistics( string1 );
+
+ // read in "tomato"
+ cout << "\n\nEnter a string: ";
+ cin >> string1; // delimited by whitespace
+ cout << "The string entered was: " << string1;
+
+ cout << "\nStatistics after input:\n";
+ printStatistics( string1 );
+
+ // read in "soup"
+ cin >> string1; // delimited by whitespace
+ cout << "\n\nThe remaining string is: " << string1 << endl;
+ printStatistics( string1 );
+
+ // append 46 characters to string1
+ string1 += "1234567890abcdefghijklmnopqrstuvwxyz1234567890";
+ cout << "\n\nstring1 is now: " << string1 << endl;
+ printStatistics( string1 );
+
+ // add 10 elements to string1
+ string1.resize( string1.length() + 10 );
+ cout << "\n\nStats after resizing by (length + 10):\n";
+ printStatistics( string1 );
+
+ cout << endl;
+ return 0;
+
+} // end main
+
+// display string statistics
+void printStatistics( const string &stringRef )
+{
+ cout << "capacity: " << stringRef.capacity()
+ << "\nmax size: " << stringRef.max_size()
+ << "\nsize: " << stringRef.size()
+ << "\nlength: " << stringRef.length()
+ << "\nempty: " << stringRef.empty();
+
+} // end printStatistics
+
+/**************************************************************************
+ * (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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