algo/replace1.cpp

The following code example is taken from the book
The C++ Standard Library - A Tutorial and Reference, 2nd Edition
by Nicolai M. Josuttis, Addison Wesley Longman, 2012
Copyright © 2012 by Pearson Education, Inc. and Nicolai M. Josuttis


#include "algostuff.hpp"
using namespace std;

int main()
{
    list<int> coll;

    INSERT_ELEMENTS(coll,2,7);
    INSERT_ELEMENTS(coll,4,9);
    PRINT_ELEMENTS(coll,"coll: ");

    // replace all elements with value 6 with 42
    replace (coll.begin(), coll.end(),     // range
             6,                            // old value
             42);                          // new value
    PRINT_ELEMENTS(coll,"coll: ");

    // replace all elements with value less than 5 with 0
    replace_if (coll.begin(), coll.end(),  // range
                [](int elem){              // criterion for replacement
                    return elem<5;
                },
                0);                        // new value
    PRINT_ELEMENTS(coll,"coll: ");
}