fixes and enhancements in libcpp

Cython/Includes/libcpp/deque.pxd

@@ -12,8 +12,8 @@ cdef extern from "<deque>" namespace "std":
             T& operator*()
             iterator operator++()
             iterator operator--()
-            bint operator==(iterator)
-            bint operator!=(iterator)
+            bint operator==(reverse_iterator)
+            bint operator!=(reverse_iterator)
         #cppclass const_iterator(iterator):
         #    pass
         #cppclass const_reverse_iterator(reverse_iterator):

Cython/Includes/libcpp/list.pxd

@@ -10,8 +10,8 @@ cdef extern from "<list>" namespace "std":
             T& operator*()
             iterator operator++()
             iterator operator--()
-            bint operator==(iterator)
-            bint operator!=(iterator)
+            bint operator==(reverse_iterator)
+            bint operator!=(reverse_iterator)
         #cppclass const_iterator(iterator):
         #    pass
         #cppclass const_reverse_iterator(reverse_iterator):
@@ -30,6 +30,7 @@ cdef extern from "<list>" namespace "std":
         T& back()
         iterator begin()
         #const_iterator begin()
+        void clear()
         bint empty()
         iterator end()
         #const_iterator end()

Cython/Includes/libcpp/map.pxd

-from pair cimport pair
+from utility cimport pair
 
 cdef extern from "<map>" namespace "std":
     cdef cppclass map[T, U]:
@@ -9,11 +9,11 @@ cdef extern from "<map>" namespace "std":
             bint operator==(iterator)
             bint operator!=(iterator)
         cppclass reverse_iterator:
-            pair[T,U] operator*()
+            pair[T,U]& operator*()
             iterator operator++()
             iterator operator--()
-            bint operator==(iterator)
-            bint operator!=(iterator)
+            bint operator==(reverse_iterator)
+            bint operator!=(reverse_iterator)
         #cppclass const_iterator(iterator):
         #    pass
         #cppclass const_reverse_iterator(reverse_iterator):

Cython/Includes/libcpp/pair.pxd

-cdef extern from "<utility>" namespace "std":
-    cdef cppclass pair[T, U]:
-        T first
-        U second
-        pair()
-        pair(pair&)
-        pair(T&, U&)
+from utility cimport pair

Cython/Includes/libcpp/set.pxd

@@ -3,17 +3,17 @@ from pair cimport pair
 cdef extern from "<set>" namespace "std":
     cdef cppclass set[T]:
         cppclass iterator:
-            T operator*()
+            T& operator*()
             iterator operator++()
             iterator operator--()
             bint operator==(iterator)
             bint operator!=(iterator)
         cppclass reverse_iterator:
-            T operator*()
+            T& operator*()
             iterator operator++()
             iterator operator--()
-            bint operator==(iterator)
-            bint operator!=(iterator)
+            bint operator==(reverse_iterator)
+            bint operator!=(reverse_iterator)
         #cppclass const_iterator(iterator):
         #    pass
         #cppclass const_reverse_iterator(reverse_iterator):

Cython/Includes/libcpp/utility.pxd

+cdef extern from "<utility>" namespace "std":
+    cdef cppclass pair[T, U]:
+        T first
+        U second
+        pair()
+        pair(pair&)
+        pair(T&, U&)
+        bint operator==(pair&, pair&)
+        bint operator!=(pair&, pair&)
+        bint operator<(pair&, pair&)
+        bint operator>(pair&, pair&)
+        bint operator<=(pair&, pair&)
+        bint operator>=(pair&, pair&)

Cython/Includes/libcpp/vector.pxd

@@ -6,8 +6,8 @@ cdef extern from "<vector>" namespace "std":
             iterator operator--()
             bint operator==(iterator)
             bint operator!=(iterator)
-            bint operator< (iterator)
-            bint operator> (iterator)
+            bint operator<(iterator)
+            bint operator>(iterator)
             bint operator<=(iterator)
             bint operator>=(iterator)
         cppclass reverse_iterator:
@@ -16,8 +16,8 @@ cdef extern from "<vector>" namespace "std":
             iterator operator--()
             bint operator==(reverse_iterator)
             bint operator!=(reverse_iterator)
-            bint operator< (reverse_iterator)
-            bint operator> (reverse_iterator)
+            bint operator<(reverse_iterator)
+            bint operator>(reverse_iterator)
             bint operator<=(reverse_iterator)
             bint operator>=(reverse_iterator)
         #cppclass const_iterator(iterator):