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LibWeb: Use i64 for intermediate value in CSSPixels multiplication
Reduce the chance of overflow due to fixed point denominator being squared when multiplying the raw values, before adjusting the final value back.
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2 changed files with 9 additions and 1 deletions
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@ -87,4 +87,12 @@ TEST_CASE(saturated_subtraction)
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EXPECT_EQ(value - -1, CSSPixels(INFINITY));
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}
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TEST_CASE(multiplication_uses_i64_for_raw_values)
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{
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CSSPixels a(1200);
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CSSPixels b(647);
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CSSPixels c = a * b;
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EXPECT_EQ(c, CSSPixels(776400));
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}
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}
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