From 33613a85afc4b1481367fbe92a17ee59c240250b Mon Sep 17 00:00:00 2001 From: Sven Eisenhauer Date: Fri, 10 Nov 2023 15:11:48 +0100 Subject: add new repo --- Bachelor/Prog1/examples/ch05/Fig05_14.cpp | 39 +++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 Bachelor/Prog1/examples/ch05/Fig05_14.cpp (limited to 'Bachelor/Prog1/examples/ch05/Fig05_14.cpp') diff --git a/Bachelor/Prog1/examples/ch05/Fig05_14.cpp b/Bachelor/Prog1/examples/ch05/Fig05_14.cpp new file mode 100644 index 0000000..8193ad1 --- /dev/null +++ b/Bachelor/Prog1/examples/ch05/Fig05_14.cpp @@ -0,0 +1,39 @@ +// Fig. 5.14: fig05_14.cpp +// Attempting to modify a constant pointer to constant data. +#include + +using std::cout; +using std::endl; + +int main() +{ + int x = 5, y; + + // ptr is a constant pointer to a constant integer. + // ptr always points to the same location; the integer + // at that location cannot be modified. + const int *const ptr = &x; + + cout << *ptr << endl; + + *ptr = 7; // error: *ptr is const; cannot assign new value + ptr = &y; // error: ptr is const; cannot assign new address + + return 0; // indicates successful termination + +} // 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. * + *************************************************************************/ -- cgit v1.2.3