10000 gh-119613: deprecate Py_IS_NAN/INFINITY and Py_IS_FINITE · skirpichev/cpython@5070e5c · GitHub
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pythongh-119613: deprecate Py_IS_NAN/INFINITY and Py_IS_FINITE
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‎Doc/whatsnew/3.14.rst

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@@ -103,7 +103,9 @@ Optimizations
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Deprecated
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==========
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* Deprecate ``Py_IS_NAN``, ``Py_IS_INFINITY`` and ``Py_IS_FINITE`` macroses,
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use instead ``isnan``, ``isinf`` and ``isfinite`` available from ``<math.h>``
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since C99. (Contributed by Sergey B Kirpichev in :gh:`119619`.)
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=======

‎Include/pymath.h

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#define Py_MATH_TAU 6.2831853071795864769252867665590057683943L
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#endif
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/* Py_IS_NAN, Py_IS_INFINITY and Py_IS_FINITE are deprecated
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* since CPython 3.14.
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*/
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// Py_IS_NAN(X)
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// Return 1 if float or double arg is a NaN, else 0.
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#define Py_IS_NAN(X) isnan(X)

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