Changeset 3801

Timestamp:

May 4, 2019, 9:47:28 AM (4 years ago)

Author:

Peter

Message:

implement reverse iterator in Pileup. closes #919

Location:

trunk

Files:

• test/pileup.cc (modified) (1 diff)
• yat/omic/Pileup.h (modified) (3 diffs)

trunk/test/pileup.cc

@@ -156 +156 @@
     ++count;
   }
+  Pileup<BamReadIterator>::const_reverse_iterator rend = pileup.rend();
+  std::distance(pileup.rbegin(), rend);
 }
 

trunk/yat/omic/Pileup.h

@@ -157 +157 @@
 
     /**
+       Same as const_iterator but iterates reversed.
+
+       \see rbegin(void) rend(void)
+
+       \since new in yat 0.17
+     */
+    typedef typename std::list<Entry>::const_reverse_iterator
+    const_reverse_iterator;
+
+    /**
        Create an empty Pileup
      */
@@ -200 +210 @@
      */
     void increment(void);
+
+    /**
+       \return an iterator that points to the last Entry in Pileup.
+
+       Iteration is done in reversed order; othwerwise behaves as begin(void)
+
+       \since new in yat 0.17
+     */
+    const_reverse_iterator rbegin(void) const;
+
+    /**
+       \return const reverse iterator to reverse end
+
+       \see end(void)
+       \see rbegin(void)
+
+       \since new in yat 0.17
+     */
+    const_reverse_iterator rend(void) const;
 
     /**
@@ -262 +291 @@
 
   template<typename Iterator>
+  typename Pileup<Iterator>::const_reverse_iterator
+  Pileup<Iterator>::rbegin(void) const
+  {
+    return data_.rbegin();
+  }
+
+
+  template<typename Iterator>
   typename Pileup<Iterator>::const_iterator Pileup<Iterator>::end(void) const
   {
     return data_.end();
+  }
+
+
+  template<typename Iterator>
+  typename Pileup<Iterator>::const_reverse_iterator
+  Pileup<Iterator>::rend(void) const
+  {
+    return data_.rend();
   }