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[3.14] gh-141004: Document `Py_UNICODE_{HIGH, LOW}_SURROGATE` functions (GH-141019) by miss-islington · Pull Request #141027 · python/cpython · GitHub

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[3.14] gh-141004: Document Py_UNICODE_{HIGH, LOW}_SURROGATE functions (GH-141019) #141027

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ZeroIntensity merged 1 commit into from
Nov 4, 2025
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[3.14] gh-141004: Document Py_UNICODE_{HIGH, LOW}_SURROGATE functions (GH-141019) #141027

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14 changes: 12 additions & 2 deletions Doc/c-api/unicode.rst
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Expand Up @@ -305,12 +305,22 @@ These APIs can be used to work with surrogates:

Check if *ch* is a low surrogate (``0xDC00 <= ch <= 0xDFFF``).

.. c:function:: Py_UCS4 Py_UNICODE_HIGH_SURROGATE(Py_UCS4 ch)

Return the high UTF-16 surrogate (``0xD800`` to ``0xDBFF``) for a Unicode
code point in the range ``[0x10000; 0x10FFFF]``.

.. c:function:: Py_UCS4 Py_UNICODE_LOW_SURROGATE(Py_UCS4 ch)

Return the low UTF-16 surrogate (``0xDC00`` to ``0xDFFF``) for a Unicode
code point in the range ``[0x10000; 0x10FFFF]``.

.. c:function:: Py_UCS4 Py_UNICODE_JOIN_SURROGATES(Py_UCS4 high, Py_UCS4 low)

Join two surrogate code points and return a single :c:type:`Py_UCS4` value.
*high* and *low* are respectively the leading and trailing surrogates in a
surrogate pair. *high* must be in the range [0xD800; 0xDBFF] and *low* must
be in the range [0xDC00; 0xDFFF].
surrogate pair. *high* must be in the range ``[0xD800; 0xDBFF]`` and *low* must
be in the range ``[0xDC00; 0xDFFF]``.


Creating and accessing Unicode strings
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