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-rw-r--r--lib/stdlib/src/string.erl12
1 files changed, 6 insertions, 6 deletions
diff --git a/lib/stdlib/src/string.erl b/lib/stdlib/src/string.erl
index f5d271c06d..cf48b882e4 100644
--- a/lib/stdlib/src/string.erl
+++ b/lib/stdlib/src/string.erl
@@ -691,9 +691,9 @@ uppercase_list(CPs0, Changed) ->
uppercase_bin(CP1, <<CP2/utf8, Bin/binary>>, _Changed)
when $a =< CP1, CP1 =< $z, CP2 < 256 ->
[CP1-32|uppercase_bin(CP2, Bin, true)];
-uppercase_bin(CP1, <<CP2/utf8, Bin/binary>>, _Changed)
+uppercase_bin(CP1, <<CP2/utf8, Bin/binary>>, Changed)
when CP1 < 128, CP2 < 256 ->
- [CP1|uppercase_bin(CP2, Bin, false)];
+ [CP1|uppercase_bin(CP2, Bin, Changed)];
uppercase_bin(CP1, Bin, Changed) ->
case unicode_util:uppercase([CP1|Bin]) of
[CP1|CPs] ->
@@ -732,9 +732,9 @@ lowercase_list(CPs0, Changed) ->
lowercase_bin(CP1, <<CP2/utf8, Bin/binary>>, _Changed)
when $A =< CP1, CP1 =< $Z, CP2 < 256 ->
[CP1+32|lowercase_bin(CP2, Bin, true)];
-lowercase_bin(CP1, <<CP2/utf8, Bin/binary>>, _Changed)
+lowercase_bin(CP1, <<CP2/utf8, Bin/binary>>, Changed)
when CP1 < 128, CP2 < 256 ->
- [CP1|lowercase_bin(CP2, Bin, false)];
+ [CP1|lowercase_bin(CP2, Bin, Changed)];
lowercase_bin(CP1, Bin, Changed) ->
case unicode_util:lowercase([CP1|Bin]) of
[CP1|CPs] ->
@@ -773,9 +773,9 @@ casefold_list(CPs0, Changed) ->
casefold_bin(CP1, <<CP2/utf8, Bin/binary>>, _Changed)
when $A =< CP1, CP1 =< $Z, CP2 < 256 ->
[CP1+32|casefold_bin(CP2, Bin, true)];
-casefold_bin(CP1, <<CP2/utf8, Bin/binary>>, _Changed)
+casefold_bin(CP1, <<CP2/utf8, Bin/binary>>, Changed)
when CP1 < 128, CP2 < 256 ->
- [CP1|casefold_bin(CP2, Bin, false)];
+ [CP1|casefold_bin(CP2, Bin, Changed)];
casefold_bin(CP1, Bin, Changed) ->
case unicode_util:casefold([CP1|Bin]) of
[CP1|CPs] ->