gh-107298: Fix references to undocumented APIs

Doc/c-api/bool.rst

@@ -13,7 +13,7 @@ are available, however.
 
 .. c:function:: int PyBool_Check(PyObject *o)
 
-   Return true if *o* is of type :c:data:`PyBool_Type`.  This function always
+   Return true if *o* is of type :c:data:`!PyBool_Type`.  This function always
    succeeds.
 
 

Doc/c-api/buffer.rst

@@ -160,9 +160,9 @@ a buffer, see :c:func:`PyObject_GetBuffer`.
       a scalar. In this case, :c:member:`~Py_buffer.shape`, :c:member:`~Py_buffer.strides`
       and :c:member:`~Py_buffer.suboffsets` MUST be ``NULL``.
 
-      The macro :c:macro:`PyBUF_MAX_NDIM` limits the maximum number of dimensions
+      The macro :c:macro:`!PyBUF_MAX_NDIM` limits the maximum number of dimensions
       to 64. Exporters MUST respect this limit, consumers of multi-dimensional
-      buffers SHOULD be able to handle up to :c:macro:`PyBUF_MAX_NDIM` dimensions.
+      buffers SHOULD be able to handle up to :c:macro:`!PyBUF_MAX_NDIM` dimensions.
 
    .. c:member:: Py_ssize_t *shape
 

Doc/c-api/exceptions.rst

@@ -370,7 +370,7 @@ an error value).
 .. c:function:: int PyErr_ResourceWarning(PyObject *source, Py_ssize_t stack_level, const char *format, ...)
 
    Function similar to :c:func:`PyErr_WarnFormat`, but *category* is
-   :exc:`ResourceWarning` and it passes *source* to :func:`warnings.WarningMessage`.
+   :exc:`ResourceWarning` and it passes *source* to :func:`!warnings.WarningMessage`.
 
    .. versionadded:: 3.6
 

Doc/c-api/float.rst

@@ -109,7 +109,7 @@ Pack functions
 The pack routines write 2, 4 or 8 bytes, starting at *p*. *le* is an
 :c:expr:`int` argument, non-zero if you want the bytes string in little-endian
 format (exponent last, at ``p+1``, ``p+3``, or ``p+6`` ``p+7``), zero if you
-want big-endian format (exponent first, at *p*). The :c:macro:`PY_BIG_ENDIAN`
+want big-endian format (exponent first, at *p*). The :c:macro:`!PY_BIG_ENDIAN`
 constant can be used to use the native endian: it is equal to ``1`` on big
 endian processor, or ``0`` on little endian processor.
 
@@ -140,7 +140,7 @@ Unpack functions
 The unpack routines read 2, 4 or 8 bytes, starting at *p*.  *le* is an
 :c:expr:`int` argument, non-zero if the bytes string is in little-endian format
 (exponent last, at ``p+1``, ``p+3`` or ``p+6`` and ``p+7``), zero if big-endian
-(exponent first, at *p*). The :c:macro:`PY_BIG_ENDIAN` constant can be used to
+(exponent first, at *p*). The :c:macro:`!PY_BIG_ENDIAN` constant can be used to
 use the native endian: it is equal to ``1`` on big endian processor, or ``0``
 on little endian processor.
 

Doc/c-api/memoryview.rst

@@ -23,7 +23,7 @@ any other object.
 .. c:function:: PyObject *PyMemoryView_FromMemory(char *mem, Py_ssize_t size, int flags)
 
    Create a memoryview object using *mem* as the underlying buffer.
-   *flags* can be one of :c:macro:`PyBUF_READ` or :c:macro:`PyBUF_WRITE`.
+   *flags* can be one of :c:macro:`!PyBUF_READ` or :c:macro:`!PyBUF_WRITE`.
 
    .. versionadded:: 3.3
 

Doc/c-api/unicode.rst

@@ -1414,8 +1414,8 @@ They all return ``NULL`` or ``-1`` if an exception occurs.
    * :c:data:`Py_True` or :c:data:`Py_False` for successful comparisons
    * :c:data:`Py_NotImplemented` in case the type combination is unknown
 
-   Possible values for *op* are :c:macro:`Py_GT`, :c:macro:`Py_GE`, :c:macro:`Py_EQ`,
-   :c:macro:`Py_NE`, :c:macro:`Py_LT`, and :c:macro:`Py_LE`.
+   Possible values for *op* are :c:macro:`!Py_GT`, :c:macro:`!Py_GE`, :c:macro:`!Py_EQ`,
+   :c:macro:`!Py_NE`, :c:macro:`!Py_LT`, and :c:macro:`!Py_LE`.
 
 
 .. c:function:: PyObject* PyUnicode_Format(PyObject *format, PyObject *args)