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Diffstat (limited to 'Doc/c-api/float.rst')
| -rw-r--r-- | Doc/c-api/float.rst | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/Doc/c-api/float.rst b/Doc/c-api/float.rst index 1da37a5bcae..c5a7653efca 100644 --- a/Doc/c-api/float.rst +++ b/Doc/c-api/float.rst @@ -96,6 +96,9 @@ 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. + 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 precision, or smaller dynamic range, not all values can be unpacked. What |