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#11901: add description of how bitfields are laid out to hexversion docs 

Patch by Sijin Joseph.
This commit is contained in:
R David Murray 2011-04-25 16:12:26 -04:00
parent 8f14bbdaf6
commit 2043f9c582
2 changed files with 24 additions and 0 deletions
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23
Doc/library/sys.rst
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@ -450,6 +450,29 @@ always available.
``version_info`` value may be used for a more human-friendly encoding of the
same information.
The ``hexversion`` is a 32-bit number with the following layout
+-------------------------+------------------------------------------------+
| bits (big endian order) | meaning |
+=========================+================================================+
| :const:`1-8` | ``PY_MAJOR_VERSION`` (the ``2`` in |
| | ``2.1.0a3``) |
+-------------------------+------------------------------------------------+
| :const:`9-16` | ``PY_MINOR_VERSION`` (the ``1`` in |
| | ``2.1.0a3``) |
+-------------------------+------------------------------------------------+
| :const:`17-24` | ``PY_MICRO_VERSION`` (the ``0`` in |
| | ``2.1.0a3``) |
+-------------------------+------------------------------------------------+
| :const:`25-28` | ``PY_RELEASE_LEVEL`` (``0xA`` for alpha, |
| | ``0xB`` for beta, ``0xC`` for gamma and |
| | ``0xF`` for final) |
+-------------------------+------------------------------------------------+
| :const:`29-32` | ``PY_RELEASE_SERIAL`` (the ``3`` in |
| | ``2.1.0a3``) |
+-------------------------+------------------------------------------------+
thus ``2.1.0a3`` is hexversion ``0x020100a3``
.. data:: int_info

1
Misc/ACKS
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@ -411,6 +411,7 @@ Irmen de Jong
Lucas de Jonge
John Jorgensen
Jens B. Jorgensen
Sijin Joseph
Andreas Jung
Tattoo Mabonzo K.
Bob Kahn