T0b1/wasmtime
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Display quiet NaNs as 'NaN'.

Browse Source 
This is recommended by IEEE 754-2008.

We still distinguish signaling NaNs with 'sNaN'.
This commit is contained in:
Jakob Stoklund Olesen
2016-04-05 10:20:32 -07:00
parent 524eb77185
commit 4b265c2ee3
2 changed files with 15 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
cranelift/docs/langref.rst
View File

@@ -247,6 +247,9 @@ Normal numbers
necessary for :type:`ieee64` which has 52 trailing significand bits
forming 13 hexadecimal digits with no padding.
Zeros
Positive and negative zero are displayed as ``0.0`` and ``-0.0`` respectively.
Subnormal numbers
Compatible with C99: ``-0x0.Tpemin`` where ``T`` are the trailing
significand bits encoded as hexadecimal, and ``emin`` is the minimum exponent
@@ -258,8 +261,8 @@ Infinities
Quiet NaNs
Quiet NaNs have the MSB of the trailing significand set. If the remaining
bits of the trailing significand are all zero, the value is displayed as
``-qNaN`` or ``qNaN``. Otherwise, ``-qNaN:0xT`` where ``T`` are the
trailing significand bits encoded as hexadecimal.
``-NaN`` or ``NaN``. Otherwise, ``-NaN:0xT`` where ``T`` are the trailing
significand bits encoded as hexadecimal.
Signaling NaNs
Displayed as ``-sNaN:0xT``.