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Merge branch 'devel' of https://github.com/Araq/Nimrod into devel

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Araq 2014-03-22 02:52:33 +01:00
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10
doc/manual.txt
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@ -5395,6 +5395,16 @@ checked.
**Future directions**: GC'ed memory should be allowed in unions and the GC
should scan unions conservatively.
Packed pragma
-------------
The `packed`:idx: pragma can be applied to any ``object`` type. It ensures
that the fields of an object are packed back-to-back in memory. It is useful
to store packets or messages from/to network or hardware drivers, and for
interoperability with C. Combining packed pragma with inheritance is not
defined, and it should not be used with GC'ed memory (ref's).
**Future directions**: Using GC'ed memory in packed pragma will result in
compile-time error. Usage with inheritance should be defined and documented.
Unchecked pragma
----------------