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-rw-r--r--Misc/NEWS6
1 files changed, 5 insertions, 1 deletions
diff --git a/Misc/NEWS b/Misc/NEWS
index 89a6c57..d3f4fe4 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -74,7 +74,11 @@ Library
Build
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-...
+- pyport.h now defines a Py_IS_NAN macro. It works as-is when the
+ platform C computes true for ``x != x`` if and only if X is a NaN.
+ Other platforms can override the default definition with a platform-
+ specific spelling in that platform's pyconfig.h. You can also override
+ pyport.h's default Py_IS_INFINITY definition now.
C API
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