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This is allowed since 19.3 (commit 6d238032) and documented since commit
744fb920.
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introduced after OTP_R13B03.
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The example should not show the iterator as that is
an internal value and if changed can confuse the reader
of the documentation. See ERL-796
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* dgud/stdlib/unicode-binary-bug/ERL-777/OTP-15428:
unicode_util did not handle binary input data correctly
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RFC3339 mentions in paragraph 5.1 that if certain conditions are
fulfilled, then sorting date and time strings results in a
time-ordered sequence. One of the conditions is that the strings must
have the same number of fractional second digits. This commits makes
sure this is indeed the case.
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An external fun could inadvertently suppress warnings for
unused variables, such as in this example:
bug() ->
BugVar = foo(),
if true ->
fun m:f/1
end.
There would be no warning that `BugVar` was unused.
The bug was introduced in ff432e262e652, which was the commit
that extended external funs to allow variables.
https://bugs.erlang.org/browse/ERL-762
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gc_zwj sent binaries recursivly to gc_extend/3 which didn't handle
can't handle them.
ERL-777
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* maint-18:
Updated OTP version
Prepare release
Optimize operator '--' and yield on large inputs
Conflicts:
OTP_VERSION
erts/doc/src/notes.xml
erts/emulator/beam/erl_alloc.types
erts/emulator/beam/erl_bif_lists.c
erts/vsn.mk
lib/stdlib/doc/src/notes.xml
lib/stdlib/vsn.mk
make/otp_version_tickets
otp_versions.table
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* john/erts/OTP-18.3.4/minusminus_trapping/OTP-15371:
Optimize operator '--' and yield on large inputs
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* maint-20:
Updated OTP version
Prepare release
Optimize operator '--' and yield on large inputs
Conflicts:
OTP_VERSION
erts/doc/src/notes.xml
erts/emulator/beam/erl_alloc.types
erts/emulator/beam/erl_bif_lists.c
erts/vsn.mk
lib/ssl/doc/src/notes.xml
lib/ssl/vsn.mk
lib/stdlib/doc/src/notes.xml
lib/stdlib/vsn.mk
make/otp_version_tickets
otp_versions.table
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* john/erts/OTP-20.3.8/minusminus_trapping/OTP-15371:
Optimize operator '--' and yield on large inputs
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The removal set now uses a red-black tree instead of an array on
large inputs, decreasing runtime complexity from `n*n` to
`n*log(n)`. It will also exit early when there are no more items
left in the removal set, drastically improving performance and
memory use when the items to be removed are present near the head
of the list.
This got a lot more complicated than before as the overhead of
always using a red-black tree was unacceptable when either of the
inputs were small, but this compromise has okay-to-decent
performance regardless of input size.
Co-authored-by: Dmytro Lytovchenko <[email protected]>
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The removal set now uses a red-black tree instead of an array on
large inputs, decreasing runtime complexity from `n*n` to
`n*log(n)`. It will also exit early when there are no more items
left in the removal set, drastically improving performance and
memory use when the items to be removed are present near the head
of the list.
This got a lot more complicated than before as the overhead of
always using a red-black tree was unacceptable when either of the
inputs were small, but this compromise has okay-to-decent
performance regardless of input size.
Co-authored-by: Dmytro Lytovchenko <[email protected]>
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* john/erts/minusminus_trapping/OTP-15371:
Optimize operator '--' and yield on large inputs
Inline erts_cmp
Clarify a magical allocation size
Fix trapping in lists:reverse/2
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The removal set now uses a red-black tree instead of an array on
large inputs, decreasing runtime complexity from `n*n` to
`n*log(n)`. It will also exit early when there are no more items
left in the removal set, drastically improving performance and
memory use when the items to be removed are present near the head
of the list.
This got a lot more complicated than before as the overhead of
always using a red-black tree was unacceptable when either of the
inputs were small, but this compromise has okay-to-decent
performance regardless of input size.
Co-authored-by: Dmytro Lytovchenko <[email protected]>
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It returns `ok`, instead of `noreply`.
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beam_lib: Clarify the beam() type in code and documentation
OTP-15378
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The type `beam()` in the `beam_lib` module is confusing:
-type beam() :: module() | file:filename() | binary().
It says that the module name can be used to identify the BEAM module
to be accessed, but passing in the module name only works if the BEAM
file is located in the current working directory because the module
is not searched for in the code path.
The reason that it is allowed to pass in the module name as an atom is
for backward compatibility. A long time ago, atoms instead of strings
were used as filenames. For that reason, `filename` and `file` still
accept atoms as filenames (although the practice is frown
upon). `beam_lib` accepts an atom as the filename for the same reason.
To remove the confusion, remove `module()` from the type and the
mention of it in the documentation. Code that uses an atom as a
filename will still work, but Dialyzer will issue a warning.
https://bugs.erlang.org/browse/ERL-696
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* siri/cuddle:
Fix gen_fsm_SUITE:start2/1 to terminate process synchronously
Fix sys_SUITE:special_process/1 to terminating process synchronously
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* sverker/erts/ets-select_replace-bug/OTP-15346:
erts: Fix bug in ets:select_replace for bound key
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* sverker/erts/ets-select_replace-bug/OTP-15346:
erts: Fix bug in ets:select_replace for bound key
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which may cause following calls to ets:next or ets:prev to fail.
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* john/compiler/deterministic-paths/OTP-15245/ERL-706:
compiler: Forward +source flag to epp and fix bug in +deterministic
epp: Allow user to set source name independently of input file name
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Note that this does *not* affect -include()'d files or the -file()
directive.
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Document bit_size in match-specs and allow in fun2ms
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* raimo/test-cuddling:
Decrease probability for failed histogram
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It is already allowed in match-specs.
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* siri/cuddle:
[logger] Skip app level test if app cannot be loaded
Terminate nodes after failed test cases in erl_distribution_SUITE
Skip performance test on build types other than 'opt'
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* hasse/stdlib/binary_in_format/OTP-15304:
stdlib: Allow lists with binaries in the Format argument
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As a consequence of some refactoring (OTP-14983, option
'chars_limit'), the Format argument of io_lib:format() no longer
accepts binaries in lists in Erlang/OTP 21.0.
Note that if Format is not of type io:format(), control sequences in
Format are ignored. This can result in unpredictable behaviour if, for
example, the output of io_lib:format() is used as Format: if the
output happens to be a string(), then control sequences are
interpreted, otherwise not.
A check that Format is of type io:format() will likely be introduced
in Erlang/OTP 22.0. That will probably mean work for some users, but
considering how unpredictable io_lib:format() is, we should try to fix
that.
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The encoding option was introduced in commit
270d909696a753af022df72a404c73f2895b4a02, to allow report callbacks to
format according to a given encoding. There was, however, no
connection between this encoding option, and the encoding of the
device to which the logger handler was writing.
Since a formatter is defined to return unicode:chardata(), and in
order to avoid mismatch with the encoding of the device, the encoding
option is now removed from the formatter. The handler itself must make
sure that it does not write illegal data to its device.
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* siri/supervisor/warn-shutdown-race/ERL-724:
[supervisor] Add warning about race condition
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ERL-724: "During a 'gentle' shutdown, supervisors unlink from their
children before sending shutdown signals to them. This can lead to a
race condition in supervision trees, when the timeout for gentle
shutdown of a parent supervisor expires and it kills a child
supervisor that has just unlinked from a child of its own, leaving the
child supervisor's own child still running after its supervisor is
killed."
This commit adds a warning about this in the documentation.
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* rickard/pcre-8.42/OTP-15217:
Update PCRE from version 8.41 to version 8.42
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* sverker/erts/ets-memstat-false-leak/ERL-720/OTP-15278:
erts: Refactor ets FixedDeletion allocations
erts: Fix ets memstat false leak of FixedDeletion
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