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[release/8.0-staging] Ensure that integer parsing correctly handles non-zero fractional data #106701

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Sep 9, 2024
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[release/8.0-staging] Ensure that integer parsing correctly handles non-zero fractional data #106701

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2 changes: 1 addition & 1 deletion src/libraries/System.Private.CoreLib/src/System/Number.Parsing.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -107,7 +107,7 @@ private static unsafe bool TryNumberBufferToBinaryInteger<TInteger>(ref NumberBu

int i = number.Scale;

if ((i > TInteger.MaxDigitCount) || (i < number.DigitsCount) || (!TInteger.IsSigned && number.IsNegative))
if ((i > TInteger.MaxDigitCount) || (i < number.DigitsCount) || (!TInteger.IsSigned && number.IsNegative) || number.HasNonZeroTail)
{
return false;
}
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40 changes: 40 additions & 0 deletions src/libraries/System.Runtime/tests/System/Int32Tests.cs
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Expand Up @@ -663,6 +663,46 @@ public static IEnumerable<object[]> Parse_Invalid_TestData()
yield return new object[] { "2147483649-", NumberStyles.AllowTrailingSign, null, typeof(OverflowException) };
yield return new object[] { "(2147483649)", NumberStyles.AllowParentheses, null, typeof(OverflowException) };
yield return new object[] { "2E10", NumberStyles.AllowExponent, null, typeof(OverflowException) };

// Test trailing non zeros

yield return new object[] { "-9223372036854775808.1", NumberStyles.Number, CultureInfo.InvariantCulture, typeof(OverflowException) };
yield return new object[] { "-2147483648.1", NumberStyles.Number, CultureInfo.InvariantCulture, typeof(OverflowException) };
yield return new object[] { "-32768.1", NumberStyles.Number, CultureInfo.InvariantCulture, typeof(OverflowException) };
yield return new object[] { "-128.1", NumberStyles.Number, CultureInfo.InvariantCulture, typeof(OverflowException) };
yield return new object[] { "127.1", NumberStyles.Number, CultureInfo.InvariantCulture, typeof(OverflowException) };
yield return new object[] { "255.1", NumberStyles.Number, CultureInfo.InvariantCulture, typeof(OverflowException) };
yield return new object[] { "32767.1", NumberStyles.Number, CultureInfo.InvariantCulture, typeof(OverflowException) };
yield return new object[] { "65535.1", NumberStyles.Number, CultureInfo.InvariantCulture, typeof(OverflowException) };
yield return new object[] { "2147483647.1", NumberStyles.Number, CultureInfo.InvariantCulture, typeof(OverflowException) };
yield return new object[] { "4294967295.1", NumberStyles.Number, CultureInfo.InvariantCulture, typeof(OverflowException) };
yield return new object[] { "9223372036854775807.1", NumberStyles.Number, CultureInfo.InvariantCulture, typeof(OverflowException) };
yield return new object[] { "18446744073709551615.1", NumberStyles.Number, CultureInfo.InvariantCulture, typeof(OverflowException) };

yield return new object[] { "-9223372036854775808.001", NumberStyles.Number, CultureInfo.InvariantCulture, typeof(OverflowException) };
yield return new object[] { "-2147483648.001", NumberStyles.Number, CultureInfo.InvariantCulture, typeof(OverflowException) };
yield return new object[] { "-32768.001", NumberStyles.Number, CultureInfo.InvariantCulture, typeof(OverflowException) };
yield return new object[] { "-128.001", NumberStyles.Number, CultureInfo.InvariantCulture, typeof(OverflowException) };
yield return new object[] { "127.001", NumberStyles.Number, CultureInfo.InvariantCulture, typeof(OverflowException) };
yield return new object[] { "255.001", NumberStyles.Number, CultureInfo.InvariantCulture, typeof(OverflowException) };
yield return new object[] { "32767.001", NumberStyles.Number, CultureInfo.InvariantCulture, typeof(OverflowException) };
yield return new object[] { "65535.001", NumberStyles.Number, CultureInfo.InvariantCulture, typeof(OverflowException) };
yield return new object[] { "2147483647.001", NumberStyles.Number, CultureInfo.InvariantCulture, typeof(OverflowException) };
yield return new object[] { "4294967295.001", NumberStyles.Number, CultureInfo.InvariantCulture, typeof(OverflowException) };
yield return new object[] { "9223372036854775807.001", NumberStyles.Number, CultureInfo.InvariantCulture, typeof(OverflowException) };
yield return new object[] { "18446744073709551615.001", NumberStyles.Number, CultureInfo.InvariantCulture, typeof(OverflowException) };

yield return new object[] { "3.001", NumberStyles.Number, CultureInfo.InvariantCulture, typeof(OverflowException) };
yield return new object[] { "3.000000001", NumberStyles.Number, CultureInfo.InvariantCulture, typeof(OverflowException) };
yield return new object[] { "3.0000000001", NumberStyles.Number, CultureInfo.InvariantCulture, typeof(OverflowException) };
yield return new object[] { "3.00000000001", NumberStyles.Number, CultureInfo.InvariantCulture, typeof(OverflowException) };

yield return new object[] { "3.100", NumberStyles.Number, CultureInfo.InvariantCulture, typeof(OverflowException) };
yield return new object[] { "3.100000000", NumberStyles.Number, CultureInfo.InvariantCulture, typeof(OverflowException) };
yield return new object[] { "3.1000000000", NumberStyles.Number, CultureInfo.InvariantCulture, typeof(OverflowException) };
yield return new object[] { "3.10000000000", NumberStyles.Number, CultureInfo.InvariantCulture, typeof(OverflowException) };

yield return new object[] { "2147483646.1", NumberStyles.Number, CultureInfo.InvariantCulture, typeof(OverflowException) };
}

[Theory]
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