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make set specification more clear; refs #10524

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Andreas Rumpf 2019-02-18 15:18:42 +01:00
commit 739dc8094e
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doc/sets_fragment.txt
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@ -6,6 +6,10 @@ only be an ordinal type of a certain size, namely:
* ``char``
* ``enum``
For signed integers the set's base type is defined to be in the
range ``0 .. MaxSetElements-1`` where ``MaxSetElements`` currently always
2^16.
or equivalent. The reason is that sets are implemented as high
performance bit vectors. Attempting to declare a set with a larger type will
result in an error: