diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index 525cf7d558ef..1d5cbcdd1043 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,11 @@
+2011-02-19  François Dumont  <francois.cppdevs@free.fr>
+
+	* include/debug/string (basic_string::insert): Add iterator check and
+	pass normal iterator to normal insert.
+	* include/debug/macros.h (__glibcxx_check_heap,
+	__glibcxx_check_heap_pred): Remove __glibcxx_check_valid_range,
+	already done.
+
 2011-02-17  Paolo Carlini  <paolo.carlini@oracle.com>
 
 	PR libstdc++/47776
diff --git a/libstdc++-v3/include/debug/macros.h b/libstdc++-v3/include/debug/macros.h
index 1244612118c1..c90bec5cf011 100644
--- a/libstdc++-v3/include/debug/macros.h
+++ b/libstdc++-v3/include/debug/macros.h
@@ -286,7 +286,6 @@ _GLIBCXX_DEBUG_VERIFY(__gnu_debug::__check_partitioned_upper(_First, _Last, \
 
 // Verify that the iterator range [_First, _Last) is a heap
 #define __glibcxx_check_heap(_First,_Last)				\
-__glibcxx_check_valid_range(_First,_Last);				\
 _GLIBCXX_DEBUG_VERIFY(std::__is_heap(_First, _Last),		        \
 		      _M_message(__gnu_debug::__msg_not_heap)	        \
 		      ._M_iterator(_First, #_First)			\
@@ -295,7 +294,6 @@ _GLIBCXX_DEBUG_VERIFY(std::__is_heap(_First, _Last),		        \
 /** Verify that the iterator range [_First, _Last) is a heap
     w.r.t. the predicate _Pred. */
 #define __glibcxx_check_heap_pred(_First,_Last,_Pred)			\
-__glibcxx_check_valid_range(_First,_Last);				\
 _GLIBCXX_DEBUG_VERIFY(std::__is_heap(_First, _Last, _Pred),		\
 		      _M_message(__gnu_debug::__msg_not_heap_pred)      \
                       ._M_iterator(_First, #_First)			\
diff --git a/libstdc++-v3/include/debug/string b/libstdc++-v3/include/debug/string
index 4fe0a0686d70..fe073f21c7fd 100644
--- a/libstdc++-v3/include/debug/string
+++ b/libstdc++-v3/include/debug/string
@@ -514,7 +514,8 @@ namespace __gnu_debug
     void
     insert(iterator __p, std::initializer_list<_CharT> __l)
     {
-      _Base::insert(__p, __l);
+      __glibcxx_check_insert(__p);
+      _Base::insert(__p.base(), __l);
       this->_M_invalidate_all();
     }
 #endif // __GXX_EXPERIMENTAL_CXX0X__