diff options
Diffstat (limited to 'lib/stdlib')
| -rw-r--r-- | lib/stdlib/src/rand.erl | 2 | ||||
| -rw-r--r-- | lib/stdlib/test/rand_SUITE.erl | 3 |
2 files changed, 4 insertions, 1 deletions
diff --git a/lib/stdlib/src/rand.erl b/lib/stdlib/src/rand.erl index 8e8d0bc801..dc060e82d9 100644 --- a/lib/stdlib/src/rand.erl +++ b/lib/stdlib/src/rand.erl @@ -63,7 +63,7 @@ %% Return algorithm and seed so that RNG state can be recreated with seed/1 -spec export_seed() -> undefined | export_state(). export_seed() -> - case seed_get() of + case get(?SEED_DICT) of {#{type:=Alg}, Seed} -> {Alg, Seed}; _ -> undefined end. diff --git a/lib/stdlib/test/rand_SUITE.erl b/lib/stdlib/test/rand_SUITE.erl index 111bf620de..03b5ce1a25 100644 --- a/lib/stdlib/test/rand_SUITE.erl +++ b/lib/stdlib/test/rand_SUITE.erl @@ -126,6 +126,9 @@ seed_1(Alg) -> false = (S1 =:= rand:seed_s(Alg)), %% Negative integers works _ = rand:seed_s(Alg, {-1,-1,-1}), + %% Check that export_seed/1 returns 'undefined' if there is no seed + erase(rand_seed), + undefined = rand:export_seed(), %% Other term do not work {'EXIT', _} = (catch rand:seed_s(foobar, os:timestamp())), |