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numeric.c: fix infinite loop

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* numeric.c (int_pow): fix infinite loop in the case of y equal 1
  and power of x does not overflow.
  [ruby-core:91734] [Bug #15651]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@67203 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2019-03-11 01:37:16 +00:00
parent f399c2912b
commit e5f01dab9d
3 changed files with 19 additions and 0 deletions
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11
test/-ext-/integer/test_integer.rb
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@ -12,4 +12,15 @@ class Test_Integer < Test::Unit::TestCase
assert_fixnum(FIXNUM_MAX)
assert_bignum(FIXNUM_MAX+1)
end
def test_positive_pow
assert_separately(%w[-r-test-/integer], "#{<<~"begin;"}\n#{<<~'end;'}", timeout: 3)
begin;
assert_equal(1, 1.positive_pow(1))
assert_equal(0, 0.positive_pow(1))
assert_equal(3, 3.positive_pow(1))
assert_equal(-3, -3.positive_pow(1))
assert_equal(9, -3.positive_pow(2))
end;
end
end