https://github.com/python/cpython/commit/d69447445cbacf7537bf59c5c683a3b17060312d commit: d69447445cbacf7537bf59c5c683a3b17060312d branch: main author: Sergey B Kirpichev <[email protected]> committer: vstinner <[email protected]> date: 2025-11-11T11:13:59+01:00 summary:
gh-141004: document Py_INFINITY and Py_NAN macros (#141145) Co-authored-by: Stan Ulbrych <[email protected]> files: M Doc/c-api/float.rst diff --git a/Doc/c-api/float.rst b/Doc/c-api/float.rst index 9e703a46445dce..eae4792af7d299 100644 --- a/Doc/c-api/float.rst +++ b/Doc/c-api/float.rst @@ -78,6 +78,24 @@ Floating-Point Objects Return the minimum normalized positive float *DBL_MIN* as C :c:expr:`double`. +.. c:macro:: Py_INFINITY + + This macro expands a to constant expression of type :c:expr:`double`, that + represents the positive infinity. + + On most platforms, this is equivalent to the :c:macro:`!INFINITY` macro from + the C11 standard ``<math.h>`` header. + + +.. c:macro:: Py_NAN + + This macro expands a to constant expression of type :c:expr:`double`, that + represents a quiet not-a-number (qNaN) value. + + On most platforms, this is equivalent to the :c:macro:`!NAN` macro from + the C11 standard ``<math.h>`` header. + + .. c:macro:: Py_MATH_El High precision (long double) definition of :data:`~math.e` constant. _______________________________________________ Python-checkins mailing list -- [email protected] To unsubscribe send an email to [email protected] https://mail.python.org/mailman3//lists/python-checkins.python.org Member address: [email protected]
