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Add binary parsing support to integer types by stephentoub · Pull Request #84998 · dotnet/runtime · GitHub
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Add binary parsing support to integer types #84998

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Merged
merged 3 commits into from
Apr 19, 2023
Merged

Add binary parsing support to integer types #84998

merged 3 commits into from
Apr 19, 2023

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@stephentoub
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Contributes to #83619

@ghost ghost added needs-area-label An area label is needed to ensure this gets routed to the appropriate area owners new-api-needs-documentation labels Apr 18, 2023
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ghost commented Apr 18, 2023

Note regarding the new-api-needs-documentation label:

This serves as a reminder for when your PR is modifying a ref *.cs file and adding/modifying public APIs, please make sure the API implementation in the src *.cs file is documented with triple slash comments, so the PR reviewers can sign off that change.

@ghost ghost assigned stephentoub Apr 18, 2023
@stephentoub stephentoub mentioned this pull request Apr 18, 2023
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tannergooding
tannergooding reviewed Apr 18, 2023
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src/libraries/System.Private.CoreLib/src/System/Number.Parsing.cs
public static TInteger ShiftLeftForNextDigit(TInteger value) => TInteger.MultiplyBy16(value);
}

private readonly struct BinaryParser<TInteger> : IHexOrBinaryParser<TInteger> where TInteger : unmanaged, IBinaryIntegerParseAndFormatInfo<TInteger>
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I wonder if its worth optimizing for processing multiple bits at a time. Doing up to 64-iterations for -1L is a lot for example.

-- Not something that needs to be in this PR, but might be worth an up-for-grabs issue if anyone is interested in optimizing it further.

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Seems the tests in

runtime/src/libraries/System.Globalization/tests/NumberFormatInfo/NumberFormatInfoValidateParseStyle.cs

Line 32 in 9cc8163

public void ValidateParseStyle_Float(NumberStyles style, bool valid, string paramName)

are unhappy and surprisingly its not the one that's checking unchecked((NumberStyles)0xFFFFFC00) is not valid...

@stephentoub
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Thanks. Yeah, it doesn't like that I added a parameter name to the exception (it's upset the name isn't null) . Will fix the test.

This was referenced Apr 19, 2023
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This was referenced Apr 19, 2023
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@stephentoub stephentoub merged commit 494bbc8 into dotnet:main Apr 19, 2023
@stephentoub stephentoub deleted the binaryparsing branch April 19, 2023 09:58
@tannergooding tannergooding mentioned this pull request Apr 20, 2023
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@kunalspathak kunalspathak mentioned this pull request Apr 25, 2023
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@ghost ghost locked as resolved and limited conversation to collaborators May 19, 2023
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@tannergooding tannergooding tannergooding approved these changes

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