Changeset 8084

Timestamp:

02/01/10 22:54:53 (7 months ago)

Author:

cdavid

Message:

BUG: fix #1387. Raise ValueError? for empty input to bincount.

Location:

trunk/numpy/lib

Files:

• src/_compiled_base.c (modified) (1 diff)
• tests/test_regression.py (modified) (1 diff)

trunk/numpy/lib/src/_compiled_base.c

@@ -118 +118 @@
     }
     len = PyArray_SIZE(lst);
+    if (len < 1) {
+        PyErr_SetString(PyExc_ValueError,
+                "The first argument cannot be empty.");
+        goto fail;
+    }
     numbers = (intp *) PyArray_DATA(lst);
     mxi = mxx(numbers, len);

trunk/numpy/lib/tests/test_regression.py

@@ -177 +177 @@
             raise AssertionError("ticket #1243")
 
+    def test_bincount_empty(self):
+        """Ticket #1387: empty array as input for bincount."""
+        assert_raises(ValueError, lambda : np.bincount(np.array([], dtype=np.intp)))
 
 if __name__ == "__main__":