New submission from Serhiy Storchaka <storchaka+cpyt...@gmail.com>: Based on discussion in PR 660.
_PyUnicodeWriter_Prepare() is used incorrectly in unicode_decode_call_errorhandler_writer(), _PyUnicode_DecodeUnicodeEscape() and PyUnicode_DecodeRawUnicodeEscape() in Objects/unicodeobject.c. The second argument is the number of characters that should be reserved after the current position. But in these places the total minimal size is passed to _PyUnicodeWriter_Prepare(). This can lead to allocating more memory than necessary. ---------- components: Interpreter Core, Unicode messages: 312038 nosy: ezio.melotti, serhiy.storchaka, vstinner, xiang.zhang priority: normal severity: normal status: open title: Fix incorrect usage of _PyUnicodeWriter_Prepare() type: resource usage versions: Python 3.6, Python 3.7, Python 3.8 _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue32827> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
