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-rw-r--r--lib/asn1/src/asn1rtt_ber.erl4
-rw-r--r--lib/asn1/test/testPrimStrings.erl9
2 files changed, 13 insertions, 0 deletions
diff --git a/lib/asn1/src/asn1rtt_ber.erl b/lib/asn1/src/asn1rtt_ber.erl
index 39fa8aaf99..e50b14941c 100644
--- a/lib/asn1/src/asn1rtt_ber.erl
+++ b/lib/asn1/src/asn1rtt_ber.erl
@@ -739,6 +739,8 @@ encode_named_bit_string([H|_]=Bits, NamedBitList, TagIn) when is_atom(H) ->
do_encode_named_bit_string(Bits, NamedBitList, TagIn);
encode_named_bit_string([{bit,_}|_]=Bits, NamedBitList, TagIn) ->
do_encode_named_bit_string(Bits, NamedBitList, TagIn);
+encode_named_bit_string([], _NamedBitList, TagIn) ->
+ encode_unnamed_bit_string(<<>>, TagIn);
encode_named_bit_string(Bits, _NamedBitList, TagIn) when is_bitstring(Bits) ->
encode_unnamed_bit_string(Bits, TagIn).
@@ -746,6 +748,8 @@ encode_named_bit_string(C, [H|_]=Bits, NamedBitList, TagIn) when is_atom(H) ->
do_encode_named_bit_string(C, Bits, NamedBitList, TagIn);
encode_named_bit_string(C, [{bit,_}|_]=Bits, NamedBitList, TagIn) ->
do_encode_named_bit_string(C, Bits, NamedBitList, TagIn);
+encode_named_bit_string(C, [], _NamedBitList, TagIn) ->
+ encode_unnamed_bit_string(C, <<>>, TagIn);
encode_named_bit_string(C, Bits, _NamedBitList, TagIn) when is_bitstring(Bits) ->
encode_unnamed_bit_string(C, Bits, TagIn).
diff --git a/lib/asn1/test/testPrimStrings.erl b/lib/asn1/test/testPrimStrings.erl
index fa778765b1..46793c6bff 100644
--- a/lib/asn1/test/testPrimStrings.erl
+++ b/lib/asn1/test/testPrimStrings.erl
@@ -123,6 +123,7 @@ bit_string(Rules, Opts) ->
%% Bs2 ::= BIT STRING {su(0), mo(1), tu(2), we(3), th(4), fr(5), sa(6) } (SIZE (7))
%%==========================================================
+ roundtrip('Bs2', []),
roundtrip('Bs2', [mo,tu,fr]),
bs_roundtrip('Bs2', <<2#0110010:7>>, [mo,tu,fr]),
bs_roundtrip('Bs2', <<2#0110011:7>>, [mo,tu,fr,sa]),
@@ -131,6 +132,7 @@ bit_string(Rules, Opts) ->
%% Bs3 ::= BIT STRING {su(0), mo(1), tu(2), we(3), th(4), fr(5), sa(6) } (SIZE (1..7))
%%==========================================================
+ roundtrip('Bs3', []),
roundtrip('Bs3', [mo,tu,fr]),
bs_roundtrip('Bs3', <<2#0110010:7>>, [mo,tu,fr]),
bs_roundtrip('Bs3', <<2#0110010:7>>, [mo,tu,fr]),
@@ -139,6 +141,13 @@ bit_string(Rules, Opts) ->
bs_roundtrip('Bs3', <<2#11:2>>, [su,mo]),
%%==========================================================
+ %% Bs4 ::= BIT STRING {su(0), mo(1), tu(2), we(3), th(4), fr(5), sa(6) }
+ %%==========================================================
+
+ roundtrip('Bs4', []),
+ roundtrip('Bs4', [mo,tu,fr,sa]),
+
+ %%==========================================================
%% Bs7 ::= BIT STRING (SIZE (24))
%%==========================================================