aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--common/list.h20
-rw-r--r--test/common/list.h43
2 files changed, 63 insertions, 0 deletions
diff --git a/common/list.h b/common/list.h
index d7273295e0..38ba9b143b 100644
--- a/common/list.h
+++ b/common/list.h
@@ -174,6 +174,18 @@ public:
return iterator(next);
}
+ iterator reverse_erase(iterator pos) {
+ assert(pos != end());
+
+ NodeBase *next = pos._node->_next;
+ NodeBase *prev = pos._node->_prev;
+ Node<T> *node = static_cast<Node<T> *>(pos._node);
+ prev->_next = next;
+ next->_prev = prev;
+ delete node;
+ return iterator(prev);
+ }
+
iterator erase(iterator first, iterator last) {
while (first != last)
erase(first++);
@@ -229,6 +241,10 @@ public:
return iterator(_anchor->_next);
}
+ iterator reverse_begin() {
+ return iterator(_anchor->_prev);
+ }
+
iterator end() {
return iterator(_anchor);
}
@@ -237,6 +253,10 @@ public:
return const_iterator(_anchor->_next);
}
+ const_iterator reverse_begin() const {
+ return const_iterator(_anchor->_prev);
+ }
+
const_iterator end() const {
return const_iterator(_anchor);
}
diff --git a/test/common/list.h b/test/common/list.h
index 31ff7af399..26709b061b 100644
--- a/test/common/list.h
+++ b/test/common/list.h
@@ -103,4 +103,47 @@ class ListTestSuite : public CxxTest::TestSuite
++iter;
TS_ASSERT( iter == container.end() );
}
+
+ void test_reverse( void )
+ {
+ Common::List<int> container;
+ Common::List<int>::iterator iter;
+
+ // Fill the container with some random data
+ container.push_back(17);
+ container.push_back(33);
+ container.push_back(-11);
+
+ iter = container.reverse_begin();
+ TS_ASSERT( iter != container.end() );
+
+
+ TS_ASSERT( *iter == -11 );
+ --iter;
+ TS_ASSERT( iter != container.end() );
+
+ TS_ASSERT( *iter == 33 );
+ --iter;
+ TS_ASSERT( iter != container.end() );
+
+ TS_ASSERT( *iter == 17 );
+ --iter;
+ TS_ASSERT( iter == container.end() );
+
+ iter = container.reverse_begin();
+
+ iter = container.reverse_erase(iter);
+ TS_ASSERT( iter != container.end() );
+ TS_ASSERT( *iter == 33 );
+
+ iter = container.reverse_erase(iter);
+ TS_ASSERT( iter != container.end() );
+ TS_ASSERT( *iter == 17 );
+
+ iter = container.reverse_erase(iter);
+ TS_ASSERT( iter == container.end() );
+
+ TS_ASSERT( container.begin() == container.end() );
+ TS_ASSERT( container.reverse_begin() == container.end() );
+ }
};