From 03efd57e002a046fdc8093bf94c8bb83d705385b Mon Sep 17 00:00:00 2001
From: Jan Travnicek <Jan.Travnicek@fit.cvut.cz>
Date: Tue, 24 Apr 2018 10:38:10 +0200
Subject: [PATCH] redesign reverse container adaptor
---
alib2std/src/extensions/iterator.hpp | 25 +++++++++++++++++++++----
1 file changed, 21 insertions(+), 4 deletions(-)
diff --git a/alib2std/src/extensions/iterator.hpp b/alib2std/src/extensions/iterator.hpp
index 1b2f482d7f..1373c176b8 100644
--- a/alib2std/src/extensions/iterator.hpp
+++ b/alib2std/src/extensions/iterator.hpp
@@ -14,17 +14,34 @@ namespace ext {
template<class T>
class reverser {
- T& m_Container;
+ T & m_Container;
public:
- reverser(T& container) : m_Container ( container ) {
+ reverser ( T & container ) : m_Container ( container ) {
}
- std::reverse_iterator<typename std::conditional<std::is_const<T>::value,typename T::const_iterator,typename T::iterator>::type> begin() const {
+ typename T::reverse_iterator begin ( ) const {
return m_Container.rbegin();
}
- std::reverse_iterator<typename std::conditional<std::is_const<T>::value,typename T::const_iterator,typename T::iterator>::type> end() const {
+ typename T::reverse_iterator end ( ) const {
+ return m_Container.rend();
+ }
+};
+
+template < class T >
+class reverser < const T > {
+ const T & m_Container;
+
+public:
+ reverser ( const T & container ) : m_Container ( container ) {
+ }
+
+ typename T::const_reverse_iterator begin ( ) const {
+ return m_Container.rbegin();
+ }
+
+ typename T::const_reverse_iterator end ( ) const {
return m_Container.rend();
}
};
--
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