[docs] [issue27183] Clarify that Py_VISIT(NULL) does nothing

Petr Viktorin report at bugs.python.org
Thu Jun 2 13:21:48 EDT 2016

New submission from Petr Viktorin:

The Py_VISIT macro (in Include/objimpl.h) does nothing if passed NULL (and did this since its introduction). It would be nice to have this formally documented.

assignee: docs at python
components: Documentation
files: 0001-Doc-c-api-Clarify-that-Py_VISIT-NULL-does-nothing.patch
keywords: patch
messages: 266894
nosy: docs at python, encukou, eric.araujo, ezio.melotti, georg.brandl
priority: normal
severity: normal
status: open
title: Clarify that Py_VISIT(NULL) does nothing
type: enhancement
versions: Python 3.6
Added file: http://bugs.python.org/file43102/0001-Doc-c-api-Clarify-that-Py_VISIT-NULL-does-nothing.patch

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