Add ediff1d support for empty arrays.

Fix ediff1d for to_begin or to_end = 0.
Allow insert to operate on empty arrays.

1 files changed, 1 insertions, 1 deletions

diff --git a/numpy/lib/function_base.py b/numpy/lib/function_base.py
index 0ede094f7..5bcd3a443 100644
--- a/numpy/lib/function_base.py
+++ b/numpy/lib/function_base.py
@@ -1286,7 +1286,7 @@ def insert(arr, obj, values, axis=None):
     newshape = list(arr.shape)
     if isinstance(obj, (int, long, integer)):
         if (obj < 0): obj += N
-        if (obj < 0 or obj >=N):
+        if (obj < 0 or obj > N or (obj == N and N != 0)):
             raise ValueError, "index (%d) out of range (0<=index<=%d) "\
                   "in dimension %d" % (obj, N, axis)
         newshape[axis] += 1;