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* random.c (random_rand): raise ArgumentError on nil, as the

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documentation implies.  [ruby-core:29075]

* random.c (rb_f_rand): mentioned the case of when max is nil.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@27204 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2010-04-03 01:51:26 +00:00
parent a9aeb765c5
commit 6decf411c6
3 changed files with 10 additions and 3 deletions
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7
ChangeLog
View file

@ -1,3 +1,10 @@
Sat Apr 3 10:51:10 2010 Nobuyoshi Nakada <nobu@ruby-lang.org>
* random.c (random_rand): raise ArgumentError on nil, as the
documentation implies. [ruby-core:29075]
* random.c (rb_f_rand): mentioned the case of when max is nil.
Sat Apr 3 06:56:11 2010 Marc-Andre Lafortune <ruby-core@marc-andre.ca>
* array.c (rb_ary_product): Accept a block [ruby-core:29045]

5
random.c
View file

@ -989,7 +989,6 @@ random_rand(int argc, VALUE *argv, VALUE obj)
int excl = 0;
if (argc == 0) {
zero_arg:
return rb_float_new(genrand_real(&rnd->mt));
}
else if (argc != 1) {
@ -997,7 +996,7 @@ random_rand(int argc, VALUE *argv, VALUE obj)
}
vmax = argv[0];
if (NIL_P(vmax)) {
goto zero_arg;
v = Qnil;
}
else if (TYPE(vmax) != T_FLOAT && (v = rb_check_to_integer(vmax, "to_int"), !NIL_P(v))) {
v = rand_int(&rnd->mt, vmax = v, 1);
@ -1098,7 +1097,7 @@ random_equal(VALUE self, VALUE other)
* rand(max=0) => number
*
* Converts <i>max</i> to an integer using max1 =
* max<code>.to_i.abs</code>. If the result is zero, returns a
* max<code>.to_i.abs</code>. If _max_ is +nil+ the result is zero, returns a
* pseudorandom floating point number greater than or equal to 0.0 and
* less than 1.0. Otherwise, returns a pseudorandom integer greater
* than or equal to zero and less than max1. <code>Kernel::srand</code>

1
test/ruby/test_rand.rb
View file

@ -207,6 +207,7 @@ class TestRand < Test::Unit::TestCase
assert_raise(ArgumentError, '[ruby-dev:39166]') { r.rand(0..-1) }
assert_raise(ArgumentError, '[ruby-dev:39166]') { r.rand(0.0...0.0) }
assert_raise(ArgumentError, '[ruby-dev:39166]') { r.rand(0.0...-0.1) }
assert_raise(ArgumentError, bug3027 = '[ruby-core:29075]') { r.rand(nil) }
end
def test_random_seed