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[Bug #20068] Encoding does not matter to empty strings

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Nobuyoshi Nakada 2023-12-16 13:48:49 +09:00
parent dd49ee152b
commit b710f96b5a
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2 changed files with 2 additions and 1 deletions
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2
string.c
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@ -3586,7 +3586,7 @@ rb_str_prepend_multi(int argc, VALUE *argv, VALUE str)
st_index_t st_index_t
rb_str_hash(VALUE str) rb_str_hash(VALUE str)
{ {
int e = ENCODING_GET(str); int e = RSTRING_LEN(str) ? ENCODING_GET(str) : 0;
if (e && is_ascii_string(str)) { if (e && is_ascii_string(str)) {
e = 0; e = 0;
} }

1
test/ruby/test_string.rb
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@ -1344,6 +1344,7 @@ CODE
assert_not_equal(S("a").hash, S("a\0").hash, bug4104) assert_not_equal(S("a").hash, S("a\0").hash, bug4104)
bug9172 = '[ruby-core:58658] [Bug #9172]' bug9172 = '[ruby-core:58658] [Bug #9172]'
assert_not_equal(S("sub-setter").hash, S("discover").hash, bug9172) assert_not_equal(S("sub-setter").hash, S("discover").hash, bug9172)
assert_equal(S("").hash, S("".encode(Encoding::UTF_32BE)).hash)
end end
def test_hex def test_hex