[3.14] Update NaNs handling description in `c-api/float.rst` (GH-141179) (#141194)

Update NaNs handling description in `c-api/float.rst` (GH-141179)

Clarified the behavior of NaNs on IEEE platforms regarding signaling and quiet NaNs.
(cherry picked from commit 920286d6b296f9971fc79e14ec22966f8f7a7b90)

Co-authored-by: W. H. Wang <mattwang44@gmail.com>

diff --git a/Doc/c-api/float.rst b/Doc/c-api/float.rst
index 1085c32a53707122b5c5250310bf357265f2c213..edee498a0b80f3920f024d0405680c514c056660 100644 (file)
--- a/Doc/c-api/float.rst
+++ b/Doc/c-api/float.rst
@@ -113,8 +113,8 @@ NaNs (if such things exist on the platform) isn't handled correctly, and
 attempting to unpack a bytes string containing an IEEE INF or NaN will raise an
 exception.
 
-Note that NaNs type may not be preserved on IEEE platforms (silent NaN become
-quiet), for example on x86 systems in 32-bit mode.
+Note that NaNs type may not be preserved on IEEE platforms (signaling NaN become
+quiet NaN), for example on x86 systems in 32-bit mode.
 
 On non-IEEE platforms with more precision, or larger dynamic range, than IEEE
 754 supports, not all values can be packed; on non-IEEE platforms with less