/* The following code example is taken from the book * "The C++ Standard Library - A Tutorial and Reference" * by Nicolai M. Josuttis, Addison-Wesley, 1999 * * (C) Copyright Nicolai M. Josuttis 1999. * Permission to copy, use, modify, sell and distribute this software * is granted provided this copyright notice appears in all copies. * This software is provided "as is" without express or implied * warranty, and with no claim as to its suitability for any purpose. */ #include <algorithm> #include <iostream> using namespace std; /* function that compares two pointers by comparing the values to which they po int */ bool int_ptr_less (int* a, int* b) { return *a < *b; } int main() { int x = 17; int y = 42; int* px = &x; int* py = &y; int* pmax; // call max() with special comparison function pmax = max (px, py, int_ptr_less); cout << *pmax; //... } /* 42 */
Pointers
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