Import Geant4 8.1.0 source tree

source/visualization/XXX/include/tree/sibling_iterator.h

@@ -0,0 +1,108 @@
+/*
+Copyright (c) 2003-2006, Troy Aaron Johnson
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+
+  * Redistributions of source code must retain the above copyright
+    notice, this list of conditions and the following disclaimer.
+  * Redistributions in binary form must reproduce the above copyright
+    notice, this list of conditions and the following disclaimer in the
+    documentation and/or other materials provided with the distribution.
+  * Neither the name of Troy Aaron Johnson nor the names of any
+    contributors may be used to endorse or promote products derived from
+    this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+*/
+
+/** Iterates through nodes that have the same parent and allows changes.
+ */
+class sibling_iterator : public virtual iterator
+{
+  friend class tree;
+
+  private:
+
+    explicit sibling_iterator(tree_node<N>* current) : iterator(current) { }
+
+  public:
+
+    sibling_iterator(void) { }
+
+    sibling_iterator(const iterator& iter) : iterator(iter) { }
+
+    sibling_iterator& operator ++ (void)
+    {
+      sib_inc(this->current);
+      return *this;
+    }
+
+    sibling_iterator operator ++ (int)
+    {
+      sibling_iterator tmp(*this);
+      sib_inc(this->current);
+      return tmp;
+    }
+
+    sibling_iterator& operator -- (void)
+    {
+      sib_dec(this->current);
+      return *this;
+    }
+
+    sibling_iterator operator -- (int)
+    {
+      sibling_iterator tmp(*this);
+      sib_dec(this->current);
+      return tmp;
+    }
+
+    sibling_iterator operator + (unsigned int n) const
+    {
+      sibling_iterator i(*this);
+
+      while (n-- > 0)
+        ++i;
+
+      return i;
+    }
+
+    sibling_iterator& operator += (unsigned int n)
+    {
+      while (n-- > 0)
+        sib_inc(this->current);
+
+      return *this;
+    }
+
+    sibling_iterator operator - (unsigned int n) const
+    {
+      sibling_iterator i(*this);
+
+      while (n-- > 0)
+        --i;
+
+      return i;
+    }
+
+    sibling_iterator& operator -= (unsigned int n)
+    {
+      while (n-- > 0)
+        sib_dec(this->current);
+
+      return *this;
+    }
+};