boost的函数:is

template< class ForwardIterator1, class ForwardIterator2 > bool is_permutation ( ForwardIterator1 first1, ForwardIterator1 last1, ForwardIterator2 first2 ); template< class ForwardIterator1, class ForwardIterator2, class BinaryPredicate > bool is_permutation ( ForwardIterator1 first1, ForwardIterator1 last1, ForwardIterator2 first2, BinaryPredicate p ); template< class ForwardIterator1, class ForwardIterator2 > bool is_permutation ( ForwardIterator1 first1, ForwardIterator1 last1, ForwardIterator2 first2, ForwardIterator2 last2 ); template <typename Range, typename ForwardIterator> bool is_permutation ( const Range &r, ForwardIterator first2 ); template <typename Range, typename ForwardIterator, typename BinaryPredicate> bool is_permutation ( const Range &r, ForwardIterator first2, BinaryPredicate pred ); template< class ForwardIterator1, class ForwardIterator2, class BinaryPredicate > bool is_permutation ( ForwardIterator1 first1, ForwardIterator1 last1, ForwardIterator2 first2, ForwardIterator2 last2, BinaryPredicate p );

简介：比较两个容器区间的元素是否一致(不是相等)。

示例：

int myints_1[] = {0, 1, 2, 3, 14, 15}; int myints_2[] = {15, 14, 3, 1, 2}; vector<int> c1(myints_1, myints_1 + sizeof(myints_1) / sizeof(int)); vector<int> c2(myints_2, myints_2 + sizeof(myints_2) / sizeof(int)); boost::algorithm::is_permutation ( c1.begin(), c1.end (), c2.begin()); //false boost::algorithm::is_permutation ( c1.begin() + 1, c1.end (), c2.begin()); //true boost::algorithm::is_permutation ( c1.end (), c1.end (), c2.end()); //true

注意：

下列函数的头文件在boost\algorithm\cxx14 template< class ForwardIterator1, class ForwardIterator2, class BinaryPredicate > bool is_permutation ( ForwardIterator1 first1, ForwardIterator1 last1, ForwardIterator2 first2, ForwardIterator2 last2, BinaryPredicate p );