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| author | Raimo Niskanen <[email protected]> | 2017-02-22 15:50:26 +0100 |
|---|---|---|
| committer | Raimo Niskanen <[email protected]> | 2017-02-23 08:39:01 +0100 |
| commit | 0f587ce17f4ad292f6f2d23d6244426046134f38 (patch) | |
| tree | e02e019ff855ee6cb2aedaaf676c9ccf383b4a33 /lib/stdlib/src/gen_statem.erl | |
| parent | 913d0b52df1e029fb1728b44ba7da318f3dc49dd (diff) | |
| download | otp-0f587ce17f4ad292f6f2d23d6244426046134f38.tar.gz otp-0f587ce17f4ad292f6f2d23d6244426046134f38.tar.bz2 otp-0f587ce17f4ad292f6f2d23d6244426046134f38.zip | |
Make code_change/4 optional
Diffstat (limited to 'lib/stdlib/src/gen_statem.erl')
| -rw-r--r-- | lib/stdlib/src/gen_statem.erl | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/stdlib/src/gen_statem.erl b/lib/stdlib/src/gen_statem.erl index ae50651c06..cacc932ec4 100644 --- a/lib/stdlib/src/gen_statem.erl +++ b/lib/stdlib/src/gen_statem.erl @@ -290,6 +290,7 @@ [init/1, % One may use enter_loop/5,6,7 instead format_status/2, % Has got a default implementation terminate/3, % Has got a default implementation + code_change/4, % Only needed by advanced soft upgrade %% state_name/3, % Example for callback_mode() =:= state_functions: %% there has to be a StateName/3 callback function |