scikit-learn
diff --git a/‎sklearn/tree/_tree.pyx
Copy file name to clipboardExpand all lines: sklearn/tree/_tree.pyx
+1-9Lines changed: 1 addition & 9 deletions b/‎sklearn/tree/_tree.pyx
Copy file name to clipboardExpand all lines: sklearn/tree/_tree.pyx
+1-9Lines changed: 1 addition & 9 deletions
@@ -22,6 +22,7 @@ from libc.math cimport isnan
 from libcpp.vector cimport vector
 from libcpp.algorithm cimport pop_heap
 from libcpp.algorithm cimport push_heap
+from libcpp.stack cimport stack
 from libcpp cimport bool
 
 import struct
@@ -43,15 +44,6 @@ cdef extern from "numpy/arrayobject.h":
                                 void* data, int flags, object obj)
     int PyArray_SetBaseObject(cnp.ndarray arr, PyObject* obj)
 
-cdef extern from "<stack>" namespace "std" nogil:
-    cdef cppclass stack[T]:
-        ctypedef T value_type
-        stack() except +
-        bint empty()
-        void pop()
-        void push(T&) except +  # Raise c++ exception for bad_alloc -> MemoryError
-        T& top()
-
 # =============================================================================
 # Types and constants
 # =============================================================================