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AK+Tests: Test Checked for main functionality
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@ -95,6 +95,29 @@ TEST_CASE(operator_arith)
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EXPECT_EQ(b / a, 28);
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}
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TEST_CASE(detects_signed_overflow)
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{
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EXPECT(!(Checked<int>(0x40000000) + Checked<int>(0x3fffffff)).has_overflow());
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EXPECT((Checked<int>(0x40000000) + Checked<int>(0x40000000)).has_overflow());
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EXPECT(!(Checked<int>(-0x40000000) + Checked<int>(-0x40000000)).has_overflow());
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EXPECT((Checked<int>(-0x40000001) + Checked<int>(-0x40000000)).has_overflow());
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EXPECT(!(Checked<int>(0x40000000) - Checked<int>(-0x3fffffff)).has_overflow());
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EXPECT((Checked<int>(0x40000000) - Checked<int>(-0x40000000)).has_overflow());
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EXPECT(!(Checked<int>(-0x40000000) - Checked<int>(0x40000000)).has_overflow());
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EXPECT((Checked<int>(-0x40000000) - Checked<int>(0x40000001)).has_overflow());
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EXPECT(!(Checked<i64>(0x4000000000000000) + Checked<i64>(0x3fffffffffffffff)).has_overflow());
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EXPECT((Checked<i64>(0x4000000000000000) + Checked<i64>(0x4000000000000000)).has_overflow());
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EXPECT(!(Checked<i64>(-0x4000000000000000) + Checked<i64>(-0x4000000000000000)).has_overflow());
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EXPECT((Checked<i64>(-0x4000000000000001) + Checked<i64>(-0x4000000000000000)).has_overflow());
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EXPECT(!(Checked<i64>(0x4000000000000000) - Checked<i64>(-0x3fffffffffffffff)).has_overflow());
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EXPECT((Checked<i64>(0x4000000000000000) - Checked<i64>(-0x4000000000000000)).has_overflow());
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EXPECT(!(Checked<i64>(-0x4000000000000000) - Checked<i64>(0x4000000000000000)).has_overflow());
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EXPECT((Checked<i64>(-0x4000000000000000) - Checked<i64>(0x4000000000000001)).has_overflow());
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}
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TEST_CASE(should_constexpr_default_construct)
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{
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constexpr Checked<int> checked_value {};
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