From 23cf1e20a6470588fbc64483031ceeec7614dc56 Mon Sep 17 00:00:00 2001
From: Jeffrey Newman <jeff@newman.me>
Date: Thu, 6 Apr 2023 10:59:36 -0500
Subject: [PATCH] gh-99202: Fix extension type from documentation for compiling
 in C++20 mode  (#102518)

---
 Doc/extending/newtypes_tutorial.rst                           | 4 ++--
 Doc/includes/custom.c                                         | 4 ++--
 Doc/includes/custom2.c                                        | 4 ++--
 Doc/includes/custom3.c                                        | 4 ++--
 Doc/includes/custom4.c                                        | 4 ++--
 .../2023-03-07-23-30-29.gh-issue-99202.hhiAJF.rst             | 1 +
 6 files changed, 11 insertions(+), 10 deletions(-)
 create mode 100644 Misc/NEWS.d/next/Documentation/2023-03-07-23-30-29.gh-issue-99202.hhiAJF.rst

diff --git a/Doc/extending/newtypes_tutorial.rst b/Doc/extending/newtypes_tutorial.rst
index 54de3fd4243..f89934a11f1 100644
--- a/Doc/extending/newtypes_tutorial.rst
+++ b/Doc/extending/newtypes_tutorial.rst
@@ -88,7 +88,7 @@ standard Python floats::
 The second bit is the definition of the type object. ::
 
    static PyTypeObject CustomType = {
-       PyVarObject_HEAD_INIT(NULL, 0)
+       .ob_base = PyVarObject_HEAD_INIT(NULL, 0)
        .tp_name = "custom.Custom",
        .tp_doc = PyDoc_STR("Custom objects"),
        .tp_basicsize = sizeof(CustomObject),
@@ -109,7 +109,7 @@ common practice to not specify them explicitly unless you need them.
 
 We're going to pick it apart, one field at a time::
 
-   PyVarObject_HEAD_INIT(NULL, 0)
+   .ob_base = PyVarObject_HEAD_INIT(NULL, 0)
 
 This line is mandatory boilerplate to initialize the ``ob_base``
 field mentioned above. ::
diff --git a/Doc/includes/custom.c b/Doc/includes/custom.c
index 26ca7549647..9cfba50ace2 100644
--- a/Doc/includes/custom.c
+++ b/Doc/includes/custom.c
@@ -7,7 +7,7 @@ typedef struct {
 } CustomObject;
 
 static PyTypeObject CustomType = {
-    PyVarObject_HEAD_INIT(NULL, 0)
+    .ob_base = PyVarObject_HEAD_INIT(NULL, 0)
     .tp_name = "custom.Custom",
     .tp_doc = PyDoc_STR("Custom objects"),
     .tp_basicsize = sizeof(CustomObject),
@@ -17,7 +17,7 @@ static PyTypeObject CustomType = {
 };
 
 static PyModuleDef custommodule = {
-    PyModuleDef_HEAD_INIT,
+    .m_base = PyModuleDef_HEAD_INIT,
     .m_name = "custom",
     .m_doc = "Example module that creates an extension type.",
     .m_size = -1,
diff --git a/Doc/includes/custom2.c b/Doc/includes/custom2.c
index a3b2d6ab78d..a0222b17952 100644
--- a/Doc/includes/custom2.c
+++ b/Doc/includes/custom2.c
@@ -90,7 +90,7 @@ static PyMethodDef Custom_methods[] = {
 };
 
 static PyTypeObject CustomType = {
-    PyVarObject_HEAD_INIT(NULL, 0)
+    .ob_base = PyVarObject_HEAD_INIT(NULL, 0)
     .tp_name = "custom2.Custom",
     .tp_doc = PyDoc_STR("Custom objects"),
     .tp_basicsize = sizeof(CustomObject),
@@ -104,7 +104,7 @@ static PyTypeObject CustomType = {
 };
 
 static PyModuleDef custommodule = {
-    PyModuleDef_HEAD_INIT,
+    .m_base =PyModuleDef_HEAD_INIT,
     .m_name = "custom2",
     .m_doc = "Example module that creates an extension type.",
     .m_size = -1,
diff --git a/Doc/includes/custom3.c b/Doc/includes/custom3.c
index 1a68bc4be8c..4aeebe0a750 100644
--- a/Doc/includes/custom3.c
+++ b/Doc/includes/custom3.c
@@ -130,7 +130,7 @@ static PyMethodDef Custom_methods[] = {
 };
 
 static PyTypeObject CustomType = {
-    PyVarObject_HEAD_INIT(NULL, 0)
+    .ob_base = PyVarObject_HEAD_INIT(NULL, 0)
     .tp_name = "custom3.Custom",
     .tp_doc = PyDoc_STR("Custom objects"),
     .tp_basicsize = sizeof(CustomObject),
@@ -145,7 +145,7 @@ static PyTypeObject CustomType = {
 };
 
 static PyModuleDef custommodule = {
-    PyModuleDef_HEAD_INIT,
+    .m_base = PyModuleDef_HEAD_INIT,
     .m_name = "custom3",
     .m_doc = "Example module that creates an extension type.",
     .m_size = -1,
diff --git a/Doc/includes/custom4.c b/Doc/includes/custom4.c
index b932d159d26..3998918f683 100644
--- a/Doc/includes/custom4.c
+++ b/Doc/includes/custom4.c
@@ -146,7 +146,7 @@ static PyMethodDef Custom_methods[] = {
 };
 
 static PyTypeObject CustomType = {
-    PyVarObject_HEAD_INIT(NULL, 0)
+    .ob_base = PyVarObject_HEAD_INIT(NULL, 0)
     .tp_name = "custom4.Custom",
     .tp_doc = PyDoc_STR("Custom objects"),
     .tp_basicsize = sizeof(CustomObject),
@@ -163,7 +163,7 @@ static PyTypeObject CustomType = {
 };
 
 static PyModuleDef custommodule = {
-    PyModuleDef_HEAD_INIT,
+    .m_base = PyModuleDef_HEAD_INIT,
     .m_name = "custom4",
     .m_doc = "Example module that creates an extension type.",
     .m_size = -1,
diff --git a/Misc/NEWS.d/next/Documentation/2023-03-07-23-30-29.gh-issue-99202.hhiAJF.rst b/Misc/NEWS.d/next/Documentation/2023-03-07-23-30-29.gh-issue-99202.hhiAJF.rst
new file mode 100644
index 00000000000..1569e815ee5
--- /dev/null
+++ b/Misc/NEWS.d/next/Documentation/2023-03-07-23-30-29.gh-issue-99202.hhiAJF.rst
@@ -0,0 +1 @@
+Fix extension type from documentation for compiling in C++20 mode