[pypy-commit] pypy use-file-star-for-file: add a comment

[bdkearns]

Author: Brian Kearns <bdkearns at gmail.com>
Branch: use-file-star-for-file
Changeset: r73446:a03b54d0c322
Date: 2014-09-11 01:17 -0400
http://bitbucket.org/pypy/pypy/changeset/a03b54d0c322/

Log:	add a comment

diff --git a/rpython/rlib/rfile.py b/rpython/rlib/rfile.py
--- a/rpython/rlib/rfile.py
+++ b/rpython/rlib/rfile.py
@@ -287,7 +287,7 @@
         if not self._univ_newline:
             return c_fread(buf, 1, n, stream)
 
-        i = 0
+        i = 0  # XXX how to do ptrdiff (dst - buf) instead?
         dst = buf
         newlinetypes = self._newlinetypes
         skipnextlf = self._skipnextlf