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-rw-r--r--lib/asn1/src/asn1ct_gen_per.erl16
1 files changed, 5 insertions, 11 deletions
diff --git a/lib/asn1/src/asn1ct_gen_per.erl b/lib/asn1/src/asn1ct_gen_per.erl
index 5f42eacbdc..bd5b81991d 100644
--- a/lib/asn1/src/asn1ct_gen_per.erl
+++ b/lib/asn1/src/asn1ct_gen_per.erl
@@ -321,19 +321,13 @@ effective_constr(_,[]) ->
[];
effective_constr('SingleValue',List) ->
SVList = lists:flatten(lists:map(fun(X)->element(2,X)end,List)),
- % sort and remove duplicates
- SortedSVList = lists:sort(SVList),
- RemoveDup = fun([],_) ->[];
- ([H],_) -> [H];
- ([H,H|T],F) -> F([H|T],F);
- ([H|T],F) -> [H|F(T,F)]
- end,
-
- case RemoveDup(SortedSVList,RemoveDup) of
+ %% Sort and remove duplicates before generating SingleValue or ValueRange
+ %% In case of ValueRange, also check for 'MIN and 'MAX'
+ case lists:usort(SVList) of
[N] ->
[{'SingleValue',N}];
- L when is_list(L) ->
- [{'ValueRange',{hd(L),lists:last(L)}}]
+ L when is_list(L) ->
+ [{'ValueRange',{least_Lb(L),greatest_Ub(L)}}]
end;
effective_constr('ValueRange',List) ->
LBs = lists:map(fun({_,{Lb,_}})-> Lb end,List),