From: Stefan Krah <skrah@bytereef.org>
Date: Tue, 24 Mar 2020 13:01:13 +0000 (+0100)
Subject: bpo-39689: Do not use native packing for format "?" with standard size (GH-18969)
X-Git-Tag: v3.9.0a6~291
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=472fc843ca816d65c12f9508ac762ca492165c45;p=thirdparty%2FPython%2Fcpython.git

bpo-39689: Do not use native packing for format "?" with standard size (GH-18969)
---

diff --git a/Modules/_struct.c b/Modules/_struct.c
index b4b52a754fcc..242ca9c10df2 100644
--- a/Modules/_struct.c
+++ b/Modules/_struct.c
@@ -2407,6 +2407,9 @@ PyInit__struct(void)
                        "unknown" float format */
                     if (ptr->format == 'd' || ptr->format == 'f')
                         break;
+                    /* Skip _Bool, semantics are different for standard size */
+                    if (ptr->format == '?')
+                        break;
                     ptr->pack = native->pack;
                     ptr->unpack = native->unpack;
                     break;