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rb_rational_raw: convert num and den by to_int

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Kenta Murata 2020-01-17 10:47:20 +09:00
parent 47465ab1cc
commit 5275d8bf4c
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2 changed files with 28 additions and 0 deletions
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4
rational.c
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@ -1927,6 +1927,10 @@ rb_gcdlcm(VALUE self, VALUE other)
VALUE VALUE
rb_rational_raw(VALUE x, VALUE y) rb_rational_raw(VALUE x, VALUE y)
{ {
if (! RB_INTEGER_TYPE_P(x))
x = rb_to_int(x);
if (! RB_INTEGER_TYPE_P(y))
y = rb_to_int(y);
if (INT_NEGATIVE_P(y)) { if (INT_NEGATIVE_P(y)) {
x = rb_int_uminus(x); x = rb_int_uminus(x);
y = rb_int_uminus(y); y = rb_int_uminus(y);

24
test/-ext-/rational/test_rat.rb
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@ -42,5 +42,29 @@ class TestRational < Test::Unit::TestCase
rat = Rational.raw(1, -2) rat = Rational.raw(1, -2)
assert_equal(-1, rat.numerator) assert_equal(-1, rat.numerator)
assert_equal(2, rat.denominator) assert_equal(2, rat.denominator)
assert_equal(1/2r, Rational.raw(1.0, 2.0))
assert_raise(TypeError) { Rational.raw("1", 2) }
assert_raise(TypeError) { Rational.raw(1, "2") }
class << (o = Object.new)
def to_i; 42; end
end
assert_raise(TypeError) { Rational.raw(o, 2) }
assert_raise(TypeError) { Rational.raw(1, o) }
class << (o = Object.new)
def to_int; 42; end
end
rat = Rational.raw(o, 2)
assert_equal(42, rat.numerator)
assert_equal(2, rat.denominator)
rat = Rational.raw(2, o)
assert_equal(2, rat.numerator)
assert_equal(42, rat.denominator)
end end
end end