diff options
Diffstat (limited to 'lib/asn1/src')
| -rw-r--r-- | lib/asn1/src/asn1ct_check.erl | 46 |
1 files changed, 7 insertions, 39 deletions
diff --git a/lib/asn1/src/asn1ct_check.erl b/lib/asn1/src/asn1ct_check.erl index 04227fd23b..0a13801e08 100644 --- a/lib/asn1/src/asn1ct_check.erl +++ b/lib/asn1/src/asn1ct_check.erl @@ -4194,9 +4194,10 @@ constraint_union(S,C) when is_list(C) -> constraint_union(_S,C) -> [C]. -constraint_union1(S,[A={'ValueRange',_},union,B={'ValueRange',_}|Rest],Acc) -> - AunionB = constraint_union_vr([A,B]), - constraint_union1(S, AunionB++Rest, Acc); +constraint_union1(S, [{'ValueRange',{Lb1,Ub1}},union, + {'ValueRange',{Lb2,Ub2}}|Rest], Acc) -> + AunionB = {'ValueRange',{c_min(Lb1, Lb2),max(Ub1, Ub2)}}, + constraint_union1(S, [AunionB|Rest], Acc); constraint_union1(S,[A={'SingleValue',_},union,B={'SingleValue',_}|Rest],Acc) -> AunionB = constraint_union_sv(S,[A,B]), constraint_union1(S,Rest,Acc ++ AunionB); @@ -4220,42 +4221,9 @@ constraint_union_sv(_S,SV) -> [N] -> [{'SingleValue',N}]; L -> [{'SingleValue',L}] end. - -%% REMOVE???? -%%constraint_union(S,VR,'ValueRange') -> -%% constraint_union_vr(VR). - -%% constraint_union_vr(VR) -%% VR = [{'ValueRange',{Lb,Ub}},...] -%% Lb = 'MIN' | integer() -%% Ub = 'MAX' | integer() -%% Returns if possible only one ValueRange tuple with a range that -%% is a union of all ranges in VR. -constraint_union_vr(VR) -> - %% Sort VR by Lb in first hand and by Ub in second hand - Fun=fun({_,{'MIN',_B1}},{_,{A2,_B2}}) when is_integer(A2)->true; - ({_,{A1,_B1}},{_,{'MAX',_B2}}) when is_integer(A1) -> true; - ({_,{A1,_B1}},{_,{A2,_B2}}) when is_integer(A1),is_integer(A2),A1<A2 -> true; - ({_,{A,B1}},{_,{A,B2}}) when B1=<B2->true; - (_,_)->false end, - SortedVR = lists:usort(Fun,VR), - constraint_union_vr(SortedVR, []). - -constraint_union_vr([],Acc) -> - lists:reverse(Acc); -constraint_union_vr([C|Rest],[]) -> - constraint_union_vr(Rest,[C]); -constraint_union_vr([{_,{Lb,Ub2}}|Rest],[{_,{Lb,_Ub1}}|Acc]) -> %Ub2 > Ub1 - constraint_union_vr(Rest,[{'ValueRange',{Lb,Ub2}}|Acc]); -constraint_union_vr([{_,{_,Ub}}|Rest],A=[{_,{_,Ub}}|_Acc]) -> - constraint_union_vr(Rest,A); -constraint_union_vr([{_,{Lb2,Ub2}}|Rest], [{_,{Lb1,Ub1}}|Acc]) - when Ub1 =< Lb2, Ub1 < Ub2 -> - constraint_union_vr(Rest,[{'ValueRange',{Lb1,Ub2}}|Acc]); -constraint_union_vr([{_,{_,Ub2}}|Rest],A=[{_,{_,Ub1}}|_Acc]) when Ub2=<Ub1-> - constraint_union_vr(Rest,A); -constraint_union_vr([VR|Rest],Acc) -> - constraint_union_vr(Rest,[VR|Acc]). +c_min('MIN', _) -> 'MIN'; +c_min(_, 'MIN') -> 'MIN'; +c_min(A, B) -> min(A, B). union_sv_vr(_S,{'SingleValue',SV},VR) when is_integer(SV) -> |