[Python-checkins] cpython: _PyUnicodeWriter_PrepareInternal(): make the assertion more strict

[victor.stinner]

https://hg.python.org/cpython/rev/ecee4ff91bf8
changeset:   98153:ecee4ff91bf8
user:        Victor Stinner <victor.stinner at gmail.com>
date:        Tue Sep 22 01:01:17 2015 +0200
summary:
  _PyUnicodeWriter_PrepareInternal(): make the assertion more strict

files:
  Objects/unicodeobject.c |  3 ++-
  1 files changed, 2 insertions(+), 1 deletions(-)


diff --git a/Objects/unicodeobject.c b/Objects/unicodeobject.c
--- a/Objects/unicodeobject.c
+++ b/Objects/unicodeobject.c
@@ -13307,7 +13307,8 @@
     PyObject *newbuffer;
 
     /* ensure that the _PyUnicodeWriter_Prepare macro was used */
-    assert(maxchar > writer->maxchar || length > 0);
+    assert((maxchar > writer->maxchar && length >= 0)
+           || length > 0);
 
     if (length > PY_SSIZE_T_MAX - writer->pos) {
         PyErr_NoMemory();

-- 
Repository URL: https://hg.python.org/cpython