Misc #10809 » add_test_for_math_c_about_overriding_Integer_to_f.patch
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assert_raise(Math::DomainError) { Math.lgamma(-Float::INFINITY) }
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end
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def test_override_fixnum_to_f
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Fixnum.class_eval do
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alias _to_f to_f
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def to_f
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(self + 1)._to_f
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end
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end
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check(Math.cos(1._to_f), Math.cos(0))
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check(Math.exp(1._to_f), Math.exp(0))
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check(Math.log(1._to_f), Math.log(0))
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Fixnum.class_eval do
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def to_f
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_to_f
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end
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end
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end
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def test_override_bignum_to_f
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Bignum.class_eval do
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alias _to_f to_f
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def to_f
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(self << 1)._to_f
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end
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end
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check(Math.cos((1 << 63)._to_f), Math.cos(1 << 62))
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check(Math.log((1 << 63)._to_f), Math.log(1 << 62))
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Bignum.class_eval do
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def to_f
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_to_f
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end
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end
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end
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end
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-
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