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  4. XOR is for the weak

XOR is for the weak

Scheduled Pinned Locked Moved The Weird and The Wonderful
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  • L Lutoslaw

    public class SomeLocationData
    {
    // fields...

    public SomeLocationData(Long someAreaId, String longitude, String latitude)
    {
        if ((someAreaId == null) == (longitude == null || latitude == null))
        {
            throw new IllegalArgumentException("Either someAreaId or coordinates must be specified.");
        }
        // ... init fields
    

    THAT CHECK. :cool:

    S Offline
    S Offline
    Super Lloyd
    wrote on last edited by
    #4

    Looks like a buggy check... what if all 3 are specified? That's will throw the error, that's what! :doh:

    A new .NET Serializer All in one Menu-Ribbon Bar Taking over the world since 1371!

    Sander RosselS 1 Reply Last reply
    0
    • S Super Lloyd

      Looks like a buggy check... what if all 3 are specified? That's will throw the error, that's what! :doh:

      A new .NET Serializer All in one Menu-Ribbon Bar Taking over the world since 1371!

      Sander RosselS Offline
      Sander RosselS Offline
      Sander Rossel
      wrote on last edited by
      #5

      I think that's what it's supposed to do. Either one or the other needs to have a value, not both and not neither ;)

      Best, Sander sanderrossel.com Continuous Integration, Delivery, and Deployment arrgh.js - Bringing LINQ to JavaScript Object-Oriented Programming in C# Succinctly

      S 1 Reply Last reply
      0
      • Sander RosselS Sander Rossel

        I think that's what it's supposed to do. Either one or the other needs to have a value, not both and not neither ;)

        Best, Sander sanderrossel.com Continuous Integration, Delivery, and Deployment arrgh.js - Bringing LINQ to JavaScript Object-Oriented Programming in C# Succinctly

        S Offline
        S Offline
        Super Lloyd
        wrote on last edited by
        #6

        well perhaps.. but then the error message is misleading! :o

        A new .NET Serializer All in one Menu-Ribbon Bar Taking over the world since 1371!

        M 1 Reply Last reply
        0
        • S Super Lloyd

          well perhaps.. but then the error message is misleading! :o

          A new .NET Serializer All in one Menu-Ribbon Bar Taking over the world since 1371!

          M Offline
          M Offline
          MarkTJohnson
          wrote on last edited by
          #7

          How is

          Either someAreaId or coordinates must be specified.

          misleading, it doesn't say AND?

          S 1 Reply Last reply
          0
          • M MarkTJohnson

            How is

            Either someAreaId or coordinates must be specified.

            misleading, it doesn't say AND?

            S Offline
            S Offline
            Super Lloyd
            wrote on last edited by
            #8

            Mmm.. maybe the nuance of English are lost on me.. not being a native... This message doesn't seem to imply to me that it is wrong to have both condition true...

            A new .NET Serializer All in one Menu-Ribbon Bar Taking over the world since 1371!

            Sander RosselS 1 Reply Last reply
            0
            • S Super Lloyd

              Mmm.. maybe the nuance of English are lost on me.. not being a native... This message doesn't seem to imply to me that it is wrong to have both condition true...

              A new .NET Serializer All in one Menu-Ribbon Bar Taking over the world since 1371!

              Sander RosselS Offline
              Sander RosselS Offline
              Sander Rossel
              wrote on last edited by
              #9

              It's the very definition of "either... or..." (a.k.a. XOR) ;) Actually, I don't think the code is that bad. I think a lot more programmers can read that than an XOR, which is far from common in C#.

              Best, Sander sanderrossel.com Continuous Integration, Delivery, and Deployment arrgh.js - Bringing LINQ to JavaScript Object-Oriented Programming in C# Succinctly

              L L 2 Replies Last reply
              0
              • Sander RosselS Sander Rossel

                It's the very definition of "either... or..." (a.k.a. XOR) ;) Actually, I don't think the code is that bad. I think a lot more programmers can read that than an XOR, which is far from common in C#.

                Best, Sander sanderrossel.com Continuous Integration, Delivery, and Deployment arrgh.js - Bringing LINQ to JavaScript Object-Oriented Programming in C# Succinctly

                L Offline
                L Offline
                Lost User
                wrote on last edited by
                #10

                :thumbsup:

                It does not solve my Problem, but it answers my question

                1 Reply Last reply
                0
                • Sander RosselS Sander Rossel

                  It's the very definition of "either... or..." (a.k.a. XOR) ;) Actually, I don't think the code is that bad. I think a lot more programmers can read that than an XOR, which is far from common in C#.

                  Best, Sander sanderrossel.com Continuous Integration, Delivery, and Deployment arrgh.js - Bringing LINQ to JavaScript Object-Oriented Programming in C# Succinctly

                  L Offline
                  L Offline
                  Lutoslaw
                  wrote on last edited by
                  #11

                  Sander Rossel wrote:

                  Actually, I don't think the code is that bad. I think a lot more programmers can read that than an XOR, which is far from common in C#.

                  OK so I don't need to duck & cover if I say that I have left it as it was? :-O

                  1 Reply Last reply
                  0
                  • L Lutoslaw

                    public class SomeLocationData
                    {
                    // fields...

                    public SomeLocationData(Long someAreaId, String longitude, String latitude)
                    {
                        if ((someAreaId == null) == (longitude == null || latitude == null))
                        {
                            throw new IllegalArgumentException("Either someAreaId or coordinates must be specified.");
                        }
                        // ... init fields
                    

                    THAT CHECK. :cool:

                    S Offline
                    S Offline
                    SteveTheThread
                    wrote on last edited by
                    #12

                    Also, you should not be using

                    String

                    but

                    string

                    I recommend taking a look at this. string vs. String is not a style debate[^]

                    L 1 Reply Last reply
                    0
                    • S SteveTheThread

                      Also, you should not be using

                      String

                      but

                      string

                      I recommend taking a look at this. string vs. String is not a style debate[^]

                      L Offline
                      L Offline
                      Lutoslaw
                      wrote on last edited by
                      #13

                      It's java.

                      L 1 Reply Last reply
                      0
                      • L Lutoslaw

                        It's java.

                        L Offline
                        L Offline
                        Lost User
                        wrote on last edited by
                        #14

                        Ouch!. My bad. Thanks

                        1 Reply Last reply
                        0
                        • L Lutoslaw

                          public class SomeLocationData
                          {
                          // fields...

                          public SomeLocationData(Long someAreaId, String longitude, String latitude)
                          {
                              if ((someAreaId == null) == (longitude == null || latitude == null))
                              {
                                  throw new IllegalArgumentException("Either someAreaId or coordinates must be specified.");
                              }
                              // ... init fields
                          

                          THAT CHECK. :cool:

                          M Offline
                          M Offline
                          Matias Lopez
                          wrote on last edited by
                          #15

                          It's old school rock! :cool: I remembered how to MessageBox (in Client) some texts on ASP.NET...

                          protected void ShowMessage(string message)
                          {
                          string msg = "alert('" + message + "');";
                          base.ClientScript.RegisterStartupScript(base.GetType(), "jsShowMessage", msg, true);
                          }

                          Yeah!

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