closes bpo-46253: Change Py_UNICODE to Py_UCS4 in the C API docs to match the current source code (GH-30387)

(cherry picked from commit 43c5c13)

Co-authored-by: Julian Gilbey <[email protected]>

Author: miss-islington

Doc/c-api/unicode.rst

@@ -268,57 +268,57 @@ are available through these macros which are mapped to C functions depending on
 the Python configuration.
 
 
-.. c:function:: int Py_UNICODE_ISSPACE(Py_UNICODE ch)
+.. c:function:: int Py_UNICODE_ISSPACE(Py_UCS4 ch)
 
    Return ``1`` or ``0`` depending on whether *ch* is a whitespace character.
 
 
-.. c:function:: int Py_UNICODE_ISLOWER(Py_UNICODE ch)
+.. c:function:: int Py_UNICODE_ISLOWER(Py_UCS4 ch)
 
    Return ``1`` or ``0`` depending on whether *ch* is a lowercase character.
 
 
-.. c:function:: int Py_UNICODE_ISUPPER(Py_UNICODE ch)
+.. c:function:: int Py_UNICODE_ISUPPER(Py_UCS4 ch)
 
    Return ``1`` or ``0`` depending on whether *ch* is an uppercase character.
 
 
-.. c:function:: int Py_UNICODE_ISTITLE(Py_UNICODE ch)
+.. c:function:: int Py_UNICODE_ISTITLE(Py_UCS4 ch)
 
    Return ``1`` or ``0`` depending on whether *ch* is a titlecase character.
 
 
-.. c:function:: int Py_UNICODE_ISLINEBREAK(Py_UNICODE ch)
+.. c:function:: int Py_UNICODE_ISLINEBREAK(Py_UCS4 ch)
 
    Return ``1`` or ``0`` depending on whether *ch* is a linebreak character.
 
 
-.. c:function:: int Py_UNICODE_ISDECIMAL(Py_UNICODE ch)
+.. c:function:: int Py_UNICODE_ISDECIMAL(Py_UCS4 ch)
 
    Return ``1`` or ``0`` depending on whether *ch* is a decimal character.
 
 
-.. c:function:: int Py_UNICODE_ISDIGIT(Py_UNICODE ch)
+.. c:function:: int Py_UNICODE_ISDIGIT(Py_UCS4 ch)
 
    Return ``1`` or ``0`` depending on whether *ch* is a digit character.
 
 
-.. c:function:: int Py_UNICODE_ISNUMERIC(Py_UNICODE ch)
+.. c:function:: int Py_UNICODE_ISNUMERIC(Py_UCS4 ch)
 
    Return ``1`` or ``0`` depending on whether *ch* is a numeric character.
 
 
-.. c:function:: int Py_UNICODE_ISALPHA(Py_UNICODE ch)
+.. c:function:: int Py_UNICODE_ISALPHA(Py_UCS4 ch)
 
    Return ``1`` or ``0`` depending on whether *ch* is an alphabetic character.
 
 
-.. c:function:: int Py_UNICODE_ISALNUM(Py_UNICODE ch)
+.. c:function:: int Py_UNICODE_ISALNUM(Py_UCS4 ch)
 
    Return ``1`` or ``0`` depending on whether *ch* is an alphanumeric character.
 
 
-.. c:function:: int Py_UNICODE_ISPRINTABLE(Py_UNICODE ch)
+.. c:function:: int Py_UNICODE_ISPRINTABLE(Py_UCS4 ch)
 
    Return ``1`` or ``0`` depending on whether *ch* is a printable character.
    Nonprintable characters are those characters defined in the Unicode character
@@ -332,43 +332,43 @@ the Python configuration.
 These APIs can be used for fast direct character conversions:
 
 
-.. c:function:: Py_UNICODE Py_UNICODE_TOLOWER(Py_UNICODE ch)
+.. c:function:: Py_UCS4 Py_UNICODE_TOLOWER(Py_UCS4 ch)
 
    Return the character *ch* converted to lower case.
 
    .. deprecated:: 3.3
       This function uses simple case mappings.
 
 
-.. c:function:: Py_UNICODE Py_UNICODE_TOUPPER(Py_UNICODE ch)
+.. c:function:: Py_UCS4 Py_UNICODE_TOUPPER(Py_UCS4 ch)
 
    Return the character *ch* converted to upper case.
 
    .. deprecated:: 3.3
       This function uses simple case mappings.
 
 
-.. c:function:: Py_UNICODE Py_UNICODE_TOTITLE(Py_UNICODE ch)
+.. c:function:: Py_UCS4 Py_UNICODE_TOTITLE(Py_UCS4 ch)
 
    Return the character *ch* converted to title case.
 
    .. deprecated:: 3.3
       This function uses simple case mappings.
 
 
-.. c:function:: int Py_UNICODE_TODECIMAL(Py_UNICODE ch)
+.. c:function:: int Py_UNICODE_TODECIMAL(Py_UCS4 ch)
 
    Return the character *ch* converted to a decimal positive integer.  Return
    ``-1`` if this is not possible.  This macro does not raise exceptions.
 
 
-.. c:function:: int Py_UNICODE_TODIGIT(Py_UNICODE ch)
+.. c:function:: int Py_UNICODE_TODIGIT(Py_UCS4 ch)
 
    Return the character *ch* converted to a single digit integer. Return ``-1`` if
    this is not possible.  This macro does not raise exceptions.
 
 
-.. c:function:: double Py_UNICODE_TONUMERIC(Py_UNICODE ch)
+.. c:function:: double Py_UNICODE_TONUMERIC(Py_UCS4 ch)
 
    Return the character *ch* converted to a double. Return ``-1.0`` if this is not
    possible.  This macro does not raise exceptions.