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| -rw-r--r-- | doc/sets_fragment.txt | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/doc/sets_fragment.txt b/doc/sets_fragment.txt index 5c341b7c8..e6332404f 100644 --- a/doc/sets_fragment.txt +++ b/doc/sets_fragment.txt @@ -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: |