diff --git a/libs/main/containers/picontainers.h b/libs/main/containers/picontainers.h
index 05891bdd..81c3c1a8 100644
--- a/libs/main/containers/picontainers.h
+++ b/libs/main/containers/picontainers.h
@@ -165,8 +165,8 @@ template <typename C> _PIReverseWrapper<C> PIReverseWrap(const C & c) {return _P
 //! \~russian Порядок обхода для функции изменения размерности reshape().
 //! \~ \sa \a PIVector::reshape(), \a PIDeque::reshape()
 enum ReshapeOrder {
-	ReshapeByRow,
-	ReshapeByColumn
+	ReshapeByRow	/*! \~english Traversing elements by line, just as they stay in memory  \~russian Обход элементов построчно, так же как они находятся в памяти */,
+	ReshapeByColumn	/*! \~english Traversing elements by column \~russian Обход элементов по столбцам */,
 };
 
 #endif // PICONTAINERS_H
diff --git a/libs/main/containers/pipair.h b/libs/main/containers/pipair.h
index eda825bc..8dc066d7 100644
--- a/libs/main/containers/pipair.h
+++ b/libs/main/containers/pipair.h
@@ -1,8 +1,17 @@
-/*! \file pipair.h
- * \brief pair
- *
- * This file declare PIPair
-*/
+//! \addtogroup Containers
+//! \{
+//! \file pipair.h
+//! \brief
+//! \~english Declares \a PIPair
+//! \~russian Объявление \a PIPair
+//! \~\authors
+//! \~english
+//! Ivan Pelipenko peri4ko@yandex.ru;
+//! Andrey Bychkov work.a.b@yandex.ru;
+//! \~russian
+//! Иван Пелипенко peri4ko@yandex.ru;
+//! Андрей Бычков work.a.b@yandex.ru;
+//! \~\}
 /*
 	PIP - Platform Independent Primitives
 	pair
@@ -27,30 +36,88 @@
 
 #include "picout.h"
 
-class PICout;
 
+//! \addtogroup Containers
+//! \{
+//! \class PIPair
+//! \brief
+//! \~english
+//! \~russian Класс, который позволяет хранить два разнородных объекта как единое целое.
+//! \~\}
+//! \details
+//! \~english
+//! \~russian
+//! \~\sa \a PIMap
 template<typename Type0, typename Type1>
 class PIPair {
 public:
-	PIPair() {first = Type0(); second = Type1();}
-	PIPair(std::tuple<Type0, Type1> tuple) {first = std::get<0>(tuple); second = std::get<1>(tuple);}
-	PIPair(const Type0 & value0, const Type1 & value1) {first = value0; second = value1;}
+	PIPair() : first(), second() {}
+	PIPair(std::tuple<Type0, Type1> tuple) {
+		first = std::get<0>(tuple);
+		second = std::get<1>(tuple);
+	}
+	PIPair(const Type0 & value0, const Type1 & value1) {
+		first = value0;
+		second = value1;
+	}
+	PIPair(Type0 && value0, Type1 && value1) {
+		first = std::move(value0);
+		second = std::move(value1);
+	}
 	Type0 first;
 	Type1 second;
 };
+
+//! \~english Compare operator with PIPair.
+//! \~russian Оператор сравнения с PIPair.
 template<typename Type0, typename Type1>
-inline bool operator <(const PIPair<Type0, Type1> & value0, const PIPair<Type0, Type1> & value1) {return value0.first < value1.first;}
+inline bool operator ==(const PIPair<Type0, Type1> & value0, const PIPair<Type0, Type1> & value1) {
+	return (value0.first == value1.first) && (value0.second == value1.second);
+}
+
+//! \~english Compare operator with PIPair.
+//! \~russian Оператор сравнения с PIPair.
 template<typename Type0, typename Type1>
-inline bool operator ==(const PIPair<Type0, Type1> & value0, const PIPair<Type0, Type1> & value1) {return (value0.first == value1.first) && (value0.second == value1.second);}
-template<typename Type0, typename Type1>
-inline bool operator !=(const PIPair<Type0, Type1> & value0, const PIPair<Type0, Type1> & value1) {return (value0.first != value1.first) || (value0.second != value1.second);}
+inline bool operator !=(const PIPair<Type0, Type1> & value0, const PIPair<Type0, Type1> & value1) {
+	return (value0.first != value1.first) || (value0.second != value1.second);
+}
 
 #ifdef PIP_STD_IOSTREAM
 template<typename Type0, typename Type1>
-inline std::ostream & operator <<(std::ostream & s, const PIPair<Type0, Type1> & v) {s << "(" << v.first << ", " << v.second << ")"; return s;}
+inline std::ostream & operator <<(std::ostream & s, const PIPair<Type0, Type1> & v) {
+	s << "(" << v.first << ", " << v.second << ")";
+	return s;
+}
 #endif
 
 template<typename Type0, typename Type1>
-inline PICout operator <<(PICout s, const PIPair<Type0, Type1> & v) {s.space(); s.setControl(0, true); s << "(" << v.first << ", " << v.second << ")"; s.restoreControl(); return s;}
+inline PICout operator <<(PICout s, const PIPair<Type0, Type1> & v) {
+	s.space();
+	s.setControl(0, true);
+	s << "(" << v.first << ", " << v.second << ")";
+	s.restoreControl();
+	return s;
+}
+
+
+//! \~english Creates \a PIPair object, deducing the target type from the types of arguments.
+//! \~russian Создает \a PIPair выводя типы из аргументов.
+//! \~\details
+//! \~\code
+//! auto p = createPIPair(1, 'a');
+//! piCout << p; // (1, a)
+//! \endcode
+template< class T1, class T2 >
+PIPair<T1,T2> createPIPair(const T1 & f, const T2 & s) {
+	return PIPair<T1,T2>(f, s);
+}
+
+//! \~english Creates \a PIPair object, deducing the target type from the types of arguments.
+//! \~russian Создает \a PIPair выводя типы из аргументов.
+//! \sa \a createPIPair()
+template< class T1, class T2 >
+PIPair<T1,T2> createPIPair(T1 && f, T2 && s) {
+	return PIPair<T1,T2>(std::move(f), std::move(s));
+}
 
 #endif // PIPAIR_H