[pypy-commit] pypy default: Add comment

[arigo]

Author: Armin Rigo <arigo at tunes.org>
Branch: 
Changeset: r90282:67b56d3a90e0
Date: 2017-02-22 09:22 +0100
http://bitbucket.org/pypy/pypy/changeset/67b56d3a90e0/

Log:	Add comment

diff --git a/rpython/rlib/runicode.py b/rpython/rlib/runicode.py
--- a/rpython/rlib/runicode.py
+++ b/rpython/rlib/runicode.py
@@ -150,6 +150,9 @@
             (ordch1 == 0xf0 and ordch2 < 0x90) or
             (ordch1 == 0xf4 and ordch2 > 0x8f))
 
+# NOTE: this is a slightly fixed algorithm when compared with
+# CPython2's.  It is closer to CPython3's.  See comments in
+# test_invalid_cb_for_3bytes_seq().
 def str_decode_utf_8_impl(s, size, errors, final, errorhandler,
                           allow_surrogates):
     if size == 0: