100 lines
3.0 KiB
C++
100 lines
3.0 KiB
C++
/*
|
|
Copyright (c) Alexander Zaitsev <zamazan4ik@gmail.by>, 2016
|
|
|
|
Distributed under the Boost Software License, Version 1.0. (See accompanying
|
|
file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
|
|
|
|
For more information, see http://www.boost.org
|
|
*/
|
|
|
|
#include <vector>
|
|
#include <list>
|
|
#include <iterator>
|
|
#include <functional>
|
|
#include <iostream>
|
|
|
|
#include <boost/algorithm/is_palindrome.hpp>
|
|
|
|
|
|
namespace ba = boost::algorithm;
|
|
|
|
template <typename T>
|
|
bool funcComparator(const T& v1, const T& v2)
|
|
{
|
|
return v1 == v2;
|
|
}
|
|
|
|
struct functorComparator
|
|
{
|
|
template <typename T>
|
|
bool operator()(const T& v1, const T& v2) const
|
|
{
|
|
return v1 == v2;
|
|
}
|
|
};
|
|
|
|
|
|
int main ( int /*argc*/, char * /*argv*/ [] )
|
|
{
|
|
//You can this algorithm with iterators(minimum Bidirectional)
|
|
std::vector<int> vec{1,2,1};
|
|
if(ba::is_palindrome(vec.begin(), vec.end()))
|
|
std::cout << "This container is palindrome" << std::endl;
|
|
else
|
|
std::cout << "This container is not palindrome" << std::endl;
|
|
|
|
|
|
//Of course, you can use const iterators
|
|
if(ba::is_palindrome(vec.cbegin(), vec.cend()))
|
|
std::cout << "This container is palindrome" << std::endl;
|
|
else
|
|
std::cout << "This container is not palindrome" << std::endl;
|
|
|
|
|
|
//Example with bidirectional iterators
|
|
std::list<int> list{1,2,1};
|
|
if(ba::is_palindrome(list.begin(), list.end()))
|
|
std::cout << "This container is palindrome" << std::endl;
|
|
else
|
|
std::cout << "This container is not palindrome" << std::endl;
|
|
|
|
|
|
//You can use custom comparators like functions, functors, lambdas
|
|
auto lambdaComparator = [](int v1, int v2){ return v1 == v2; };
|
|
auto objFunc = std::function<bool(int, int)>(lambdaComparator);
|
|
|
|
if(ba::is_palindrome(vec.begin(), vec.end(), lambdaComparator))
|
|
std::cout << "This container is palindrome" << std::endl;
|
|
else
|
|
std::cout << "This container is not palindrome" << std::endl;
|
|
|
|
if(ba::is_palindrome(vec.begin(), vec.end(), funcComparator<int>))
|
|
std::cout << "This container is palindrome" << std::endl;
|
|
else
|
|
std::cout << "This container is not palindrome" << std::endl;
|
|
|
|
if(ba::is_palindrome(vec.begin(), vec.end(), functorComparator()))
|
|
std::cout << "This container is palindrome" << std::endl;
|
|
else
|
|
std::cout << "This container is not palindrome" << std::endl;
|
|
|
|
if(ba::is_palindrome(vec.begin(), vec.end(), objFunc))
|
|
std::cout << "This container is palindrome" << std::endl;
|
|
else
|
|
std::cout << "This container is not palindrome" << std::endl;
|
|
|
|
|
|
//You can use ranges
|
|
if(ba::is_palindrome(vec))
|
|
std::cout << "This container is palindrome" << std::endl;
|
|
else
|
|
std::cout << "This container is not palindrome" << std::endl;
|
|
|
|
//You can use C-strings
|
|
if(ba::is_palindrome("aba"))
|
|
std::cout << "This C-string is palindrome" << std::endl;
|
|
else
|
|
std::cout << "This C-string is not palindrome" << std::endl;
|
|
return 0;
|
|
}
|