From 2740e460897cf9efcdb8c83076fd640016f007d4 Mon Sep 17 00:00:00 2001 From: Victor Stinner Date: Tue, 6 Sep 2016 16:58:36 -0700 Subject: [PATCH] _PyUnicodeWriter: assert that max character <= MAX_UNICODE --- Objects/unicodeobject.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/Objects/unicodeobject.c b/Objects/unicodeobject.c index b96333ce47..9ecf0e16d3 100644 --- a/Objects/unicodeobject.c +++ b/Objects/unicodeobject.c @@ -13348,6 +13348,8 @@ _PyUnicodeWriter_PrepareInternal(_PyUnicodeWriter *writer, Py_ssize_t newlen; PyObject *newbuffer; + assert(maxchar <= MAX_UNICODE); + /* ensure that the _PyUnicodeWriter_Prepare macro was used */ assert((maxchar > writer->maxchar && length >= 0) || length > 0); @@ -13441,6 +13443,7 @@ _PyUnicodeWriter_PrepareKindInternal(_PyUnicodeWriter *writer, Py_LOCAL_INLINE(int) _PyUnicodeWriter_WriteCharInline(_PyUnicodeWriter *writer, Py_UCS4 ch) { + assert(ch <= MAX_UNICODE); if (_PyUnicodeWriter_Prepare(writer, 1, ch) < 0) return -1; PyUnicode_WRITE(writer->kind, writer->data, writer->pos, ch); -- 2.50.1