summaryrefslogtreecommitdiff
path: root/smmap/mman.py
diff options
context:
space:
mode:
Diffstat (limited to 'smmap/mman.py')
-rw-r--r--smmap/mman.py1
1 files changed, 1 insertions, 0 deletions
diff --git a/smmap/mman.py b/smmap/mman.py
index 7180c75..975fafa 100644
--- a/smmap/mman.py
+++ b/smmap/mman.py
@@ -131,6 +131,7 @@ class WindowCursor(object):
# END need region handling
self._ofs = offset - self._region._b
+ assert(self._ofs > -1)
self._size = min(size, self._region.ofs_end() - offset)
return self