The following code example is taken from the book
The C++ Standard Library - A Tutorial and Reference
by Nicolai M. Josuttis, Addison-Wesley, 1999
© Copyright Nicolai M. Josuttis 1999
#include "algostuff.hpp"
using namespace std;
bool bothEvenOrOdd (int elem1, int elem2)
{
return elem1 % 2 == elem2 % 2;
}
int main()
{
vector<int> coll1;
list<int> coll2;
INSERT_ELEMENTS(coll1,1,7);
INSERT_ELEMENTS(coll2,3,9);
PRINT_ELEMENTS(coll1,"coll1: ");
PRINT_ELEMENTS(coll2,"coll2: ");
// check whether both collections are equal
if (equal (coll1.begin(), coll1.end(), // first range
coll2.begin())) { // second range
cout << "coll1 == coll2" << endl;
}
else {
cout << "coll1 != coll2" << endl;
}
// check for corresponding even and odd elements
if (equal (coll1.begin(), coll1.end(), // first range
coll2.begin(), // second range
bothEvenOrOdd)) { // comparison criterion
cout << "even and odd elements correspond" << endl;
}
else {
cout << "even and odd elements do not correspond" << endl;
}
}