find.cpp

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#include <vector>      // for vector
#include <algorithm>   // for adjacent_find, find
#include <functional>  // for bind1st, equal_to
#include <iostream>    // for cout, endl
 
#include <examples.h>
 
 
int main ()
{
    // Typedef for convenience.
    typedef std::vector<int, std::allocator<int> > Vector;
 
    const Vector::value_type arr[] = { 0, 1, 2, 2, 3, 4, 2, 2, 6, 7 };
 
    // Set up a vector.
    const Vector v1 (arr, arr + sizeof arr / sizeof *arr);
 
    // Try find.
    Vector::const_iterator it = std::find (v1.begin (), v1.end (), 3);
 
    std::cout << *it << ' ';
 
    // Try find_if.
    it = std::find_if (v1.begin (), v1.end (),
                       std::bind1st (std::equal_to<Vector::value_type>(), 3));
 
    std::cout << *it << ' ';
 
    // Try both adjacent_find variants.
    it = std::adjacent_find (v1.begin (), v1.end ());
 
    std::cout << *it << ' ';
 
    it = std::adjacent_find (v1.begin (), v1.end (),
                             std::equal_to<Vector::value_type>());
 
    std::cout << *it << std::endl;
 
    return 0;
}