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Thread: [RESOLVED] Ref int unsafe code in C#

  1. #1

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    Resolved [RESOLVED] Ref int unsafe code in C#

    I come across some C# codes as C++'s pointer. But I never used such technique. Please explain how it works.

    ref int val2 = ref this.intCounts;
    ref reference = ref val2;
    val2 = reference + 1;
    it seems to be this.intCounts++. Does .NET 2.0 supports above codes?

  2. #2
    .NUT jmcilhinney's Avatar
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    Re: Ref int unsafe code in C#

    Quote Originally Posted by DaveDavis View Post
    Please explain how it works.
    The explanation is in the documentation, which is the first place you should always look. VS has a Help menu for a reason.

    https://docs.microsoft.com/en-us/dot...-return-values
    Quote Originally Posted by DaveDavis View Post
    Does .NET 2.0 supports above codes?
    It's got nothing to do with the .NET Framework version because it's not a .NET feature. What matters is the C# version because this is a C# language feature. I don't know what version of C# this feature was introduced in but as long as you are using that version of C# or later, you can target any .NET version supported by that IDE.
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  3. #3
    .NUT jmcilhinney's Avatar
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    Re: Ref int unsafe code in C#

    By the way, this is not unsafe code because it's not using pointers. Pointers are actually variables that contain numeric memory addresses. That this code is using .NET references.
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  4. #4

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    Re: Ref int unsafe code in C#

    Thanks jmci.

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