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merges r26936 from trunk into ruby_1_9_1 and little refactoring.

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--
* random.c (rb_reset_random_seed): set seed in this. [ruby-core:28655]
--
* random.c: refactoring.

* random.c (rand_srand): a new function that wraps
  rand_init and (re)initialization of the random seed as
  a VALUE.

* random.c (genrand_int32, genrand_real, rb_f_rand,
  rb_f_srand): using rand_srand.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_1@28511 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
yugui 2010-07-01 07:59:03 +00:00
parent 58a4828163
commit 237fc68839
4 changed files with 53 additions and 9 deletions
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10
test/ruby/test_rand.rb
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@ -164,4 +164,14 @@ class TestRand < Test::Unit::TestCase
srand(0)
assert_equal([1,4,2,5,3], [1,2,3,4,5].shuffle)
end
def test_fork_shuffle
pid = fork do
(1..10).to_a.shuffle
raise 'default seed is not set' if srand == 0
end
p2, st = Process.waitpid2(pid)
assert(st.success?)
rescue NotImplementedError, ArgumentError
end
end