diff options
| 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/8_ch13/Fig13_01.cpp | |
| download | Studium-master.tar.gz Studium-master.tar.bz2 | |
Diffstat (limited to 'Bachelor/Prog2/Codebeispiele/8_ch13/Fig13_01.cpp')
| -rw-r--r-- | Bachelor/Prog2/Codebeispiele/8_ch13/Fig13_01.cpp | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/Bachelor/Prog2/Codebeispiele/8_ch13/Fig13_01.cpp b/Bachelor/Prog2/Codebeispiele/8_ch13/Fig13_01.cpp new file mode 100644 index 0000000..1d3ba0b --- /dev/null +++ b/Bachelor/Prog2/Codebeispiele/8_ch13/Fig13_01.cpp @@ -0,0 +1,89 @@ +// Fig. 13.1: fig13_01.cpp
+// A simple exception-handling example that checks for
+// divide-by-zero exceptions.
+#include <iostream>
+
+using std::cout;
+using std::cin;
+using std::endl;
+
+#include <exception>
+
+using std::exception;
+
+// DivideByZeroException objects should be thrown by functions
+// upon detecting division-by-zero exceptions
+class DivideByZeroException : public exception {
+
+public:
+
+ // constructor specifies default error message
+ DivideByZeroException::DivideByZeroException()
+ : exception( "attempted to divide by zero" ) {}
+
+}; // end class DivideByZeroException
+
+// perform division and throw DivideByZeroException object if
+// divide-by-zero exception occurs
+double quotient( int numerator, int denominator )
+{
+ // throw DivideByZeroException if trying to divide by zero
+ if ( denominator == 0 )
+ throw DivideByZeroException(); // terminate function
+
+ // return division result
+ return static_cast< double >( numerator ) / denominator;
+
+} // end function quotient
+
+int main()
+{
+ int number1; // user-specified numerator
+ int number2; // user-specified denominator
+ double result; // result of division
+
+ cout << "Enter two integers (end-of-file to end): ";
+
+ // enable user to enter two integers to divide
+ while ( cin >> number1 >> number2 ) {
+
+ // try block contains code that might throw exception
+ // and code that should not execute if an exception occurs
+ try {
+ result = quotient( number1, number2 );
+ cout << "The quotient is: " << result << endl;
+
+ } // end try
+
+ // exception handler handles a divide-by-zero exception
+ catch ( DivideByZeroException ÷ByZeroException ) {
+ cout << "Exception occurred: " <<
+ divideByZeroException.what() << endl;
+
+ } // end catch
+
+ cout << "\nEnter two integers (end-of-file to end): ";
+
+ } // end while
+
+ cout << endl;
+
+ return 0; // terminate normally
+
+} // end main
+
+
+/**************************************************************************
+ * (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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