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| author | Sverker Eriksson <[email protected]> | 2015-02-17 19:35:59 +0100 |
|---|---|---|
| committer | Björn-Egil Dahlberg <[email protected]> | 2015-03-12 19:15:25 +0100 |
| commit | 70bb13c626ffbffc9c7d6fbe1d69e91dd0a853be (patch) | |
| tree | 6702d7c7044d3edcb9d41a8e03b6230dc9f05254 /erts/emulator/test/map_SUITE.erl | |
| parent | 7e3b9d5ab2e0c53b606a653896f3a2857ea5cbce (diff) | |
| download | otp-70bb13c626ffbffc9c7d6fbe1d69e91dd0a853be.tar.gz otp-70bb13c626ffbffc9c7d6fbe1d69e91dd0a853be.tar.bz2 otp-70bb13c626ffbffc9c7d6fbe1d69e91dd0a853be.zip | |
erts: Change phash2 of maps to be sensitive to key-value combos.
The old hashing did not care which value belonged to which key,
for example:
would hash the same.
Diffstat (limited to 'erts/emulator/test/map_SUITE.erl')
| -rw-r--r-- | erts/emulator/test/map_SUITE.erl | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/erts/emulator/test/map_SUITE.erl b/erts/emulator/test/map_SUITE.erl index 5944450f33..0205c52c98 100644 --- a/erts/emulator/test/map_SUITE.erl +++ b/erts/emulator/test/map_SUITE.erl @@ -976,21 +976,21 @@ t_erlang_hash(Config) when is_list(Config) -> t_bif_erlang_phash2() -> 39679005 = erlang:phash2(#{}), - 78942764 = erlang:phash2(#{ a => 1, "a" => 2, <<"a">> => 3, {a,b} => 4 }), - 37338230 = erlang:phash2(#{ 1 => a, 2 => "a", 3 => <<"a">>, 4 => {a,b} }), - 14363616 = erlang:phash2(#{ 1 => a }), - 51612236 = erlang:phash2(#{ a => 1 }), + 33667975 = erlang:phash2(#{ a => 1, "a" => 2, <<"a">> => 3, {a,b} => 4 }), % 78942764 + 95332690 = erlang:phash2(#{ 1 => a, 2 => "a", 3 => <<"a">>, 4 => {a,b} }), % 37338230 + 108954384 = erlang:phash2(#{ 1 => a }), % 14363616 + 59617982 = erlang:phash2(#{ a => 1 }), % 51612236 - 37468437 = erlang:phash2(#{{} => <<>>}), - 44049159 = erlang:phash2(#{<<>> => {}}), + 42770201 = erlang:phash2(#{{} => <<>>}), % 37468437 + 71687700 = erlang:phash2(#{<<>> => {}}), % 44049159 M0 = #{ a => 1, "key" => <<"value">> }, M1 = maps:remove("key",M0), M2 = M1#{ "key" => <<"value">> }, - 118679416 = erlang:phash2(M0), - 51612236 = erlang:phash2(M1), - 118679416 = erlang:phash2(M2), + 70249457 = erlang:phash2(M0), % 118679416 + 59617982 = erlang:phash2(M1), % 51612236 + 70249457 = erlang:phash2(M2), % 118679416 ok. t_bif_erlang_phash() -> |