specialize BufferIterator::operator--

2012-03-31 15:21:14 +00:00 · 2012-03-31 15:21:14 +00:00 · 07e1fcf67b
commit 07e1fcf67b
parent f63320b19e
1 changed files with 12 additions and 1 deletions
--- a/src/buffer_iterator.inl.hh
+++ b/src/buffer_iterator.inl.hh
@ -202,11 +202,22 @@ inline BufferIterator& BufferIterator::operator++()
        ++m_coord.line;
        m_coord.column = 0;
    }
+    return *this;
 }

 inline BufferIterator& BufferIterator::operator--()
 {
-    return (*this -= 1);
+    if (column() == 0)
+    {
+        if (line() > 0)
+        {
+            --m_coord.line;
+            m_coord.column = m_buffer->m_lines[m_coord.line].length() - 1;
+        }
+    }
+    else
+       --m_coord.column;
+    return *this;
 }

 inline bool BufferIterator::is_begin() const