re PR libstdc++/27404 (Rope iterators are not InputIterators)

2006-05-04  Douglas Gregor  <dgregor@cs.indiana.edu>

	PR libstdc++/27404
	* include/ext/rope (_Rope_const_iterator<>::operator*() const,
	_Rope_iterator<>::operator*() const): Add.

From-SVN: r113519

libstdc++-v3/ChangeLog

+2006-05-04  Douglas Gregor  <dgregor@cs.indiana.edu>
+
+	PR libstdc++/27404
+	* include/ext/rope (_Rope_const_iterator<>::operator*() const,
+	_Rope_iterator<>::operator*() const): Add.
+
 2006-05-01  Paolo Carlini  <pcarlini@suse.de>
 
 	* acinclude.m4 (GLIBCXX_ENABLE_WCHAR_T): Always check the

libstdc++-v3/include/ext/rope

@@ -1153,7 +1153,15 @@ protected:
 	  _S_setcache(*this);
         return *this->_M_buf_ptr;
       }
-      
+
+      // Without this const version, Rope iterators do not meet the
+      // requirements of an Input Iterator.
+      reference
+      operator*() const
+      {
+	return *const_cast<_Rope_const_iterator&>(*this);
+      }
+
       _Rope_const_iterator&
       operator++()
       {
@@ -1336,6 +1344,13 @@ protected:
 						      *this->_M_buf_ptr);
       }
 
+      // See above comment.
+      reference
+      operator*() const
+      {
+	return *const_cast<_Rope_iterator&>(*this);
+      }
+
       _Rope_iterator&
       operator++()
       {