Constant definition

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  • Lurc
    #1

    Constant definition

    Dear all,

    From forum, I found some constants definition like
    Const ERROR_SUCCESS = 0&
    Const ERROR_BADDB = 1009&

    I wonder what is the meaning for sign & here?

    --
    Best regards,
    RL


    Tags: None
    • Beth Massi [Architect MVP]
      #2
      Re: Constant definition

      That's some pretty old looking code. The & and % characters can be used as
      type characters for Long and Integer (respectively). VB.NET includes them
      only for historical purposes and their use is discouraged. You should
      declare your variables instead:

      Const ERROR_SUCCESS As Long = 0
      Const ERROR_BADDB As Long = 1009

      If you need to use a Long literal in code, use "L" instead of "&". (i.e.
      123L)

      "Lurc" <lurchot@spam.h otmail.com> wrote in message
      news:ebBL6TdUFH A.3400@TK2MSFTN GP10.phx.gbl...[color=blue]
      > Dear all,
      >
      > From forum, I found some constants definition like
      > Const ERROR_SUCCESS = 0&
      > Const ERROR_BADDB = 1009&
      >
      > I wonder what is the meaning for sign & here?
      >
      > --
      > Best regards,
      > RL
      >
      >[/color]


        Comment

        • Lurc
          #3
          Re: Constant definition

          Many thanks, Beth.

          --
          Best regards,
          RL
          "Beth Massi [Architect MVP]" <bmassi@comcast .net> дÈëÓʼþ
          news:eZpGIveUFH A.3188@TK2MSFTN GP09.phx.gbl...[color=blue]
          > That's some pretty old looking code. The & and % characters can be used as
          > type characters for Long and Integer (respectively). VB.NET includes them
          > only for historical purposes and their use is discouraged. You should
          > declare your variables instead:
          >
          > Const ERROR_SUCCESS As Long = 0
          > Const ERROR_BADDB As Long = 1009
          >
          > If you need to use a Long literal in code, use "L" instead of "&". (i.e.
          > 123L)
          >
          > "Lurc" <lurchot@spam.h otmail.com> wrote in message
          > news:ebBL6TdUFH A.3400@TK2MSFTN GP10.phx.gbl...[color=green]
          > > Dear all,
          > >
          > > From forum, I found some constants definition like
          > > Const ERROR_SUCCESS = 0&
          > > Const ERROR_BADDB = 1009&
          > >
          > > I wonder what is the meaning for sign & here?
          > >
          > > --
          > > Best regards,
          > > RL
          > >
          > >[/color]
          >
          >[/color]


            Comment

            • Stephany Young
              #4
              Re: Constant definition

              Remember Beth that a Long in VB6 is an Integer in VB.Net and that an Integer
              in VB6 is a Short in VB.Net.

              Const ERROR_SUCCESS As Integer = 0
              Const ERROR_BADDB As Integer = 1009


              "Beth Massi [Architect MVP]" <bmassi@comcast .net> wrote in message
              news:eZpGIveUFH A.3188@TK2MSFTN GP09.phx.gbl...[color=blue]
              > That's some pretty old looking code. The & and % characters can be used as
              > type characters for Long and Integer (respectively). VB.NET includes them
              > only for historical purposes and their use is discouraged. You should
              > declare your variables instead:
              >
              > Const ERROR_SUCCESS As Long = 0
              > Const ERROR_BADDB As Long = 1009
              >
              > If you need to use a Long literal in code, use "L" instead of "&". (i.e.
              > 123L)
              >
              > "Lurc" <lurchot@spam.h otmail.com> wrote in message
              > news:ebBL6TdUFH A.3400@TK2MSFTN GP10.phx.gbl...[color=green]
              >> Dear all,
              >>
              >> From forum, I found some constants definition like
              >> Const ERROR_SUCCESS = 0&
              >> Const ERROR_BADDB = 1009&
              >>
              >> I wonder what is the meaning for sign & here?
              >>
              >> --
              >> Best regards,
              >> RL
              >>
              >>[/color]
              >
              >[/color]


                Comment

                • Beth Massi [Architect MVP]
                  #5
                  Re: Constant definition

                  Since the question was posted on a VB.NET forum I figured the code in the
                  original question was VB.NET, not VB6.

                  "Stephany Young" <noone@localhos t> wrote in message
                  news:erObeTfUFH A.2172@TK2MSFTN GP15.phx.gbl...[color=blue]
                  > Remember Beth that a Long in VB6 is an Integer in VB.Net and that an
                  > Integer in VB6 is a Short in VB.Net.
                  >
                  > Const ERROR_SUCCESS As Integer = 0
                  > Const ERROR_BADDB As Integer = 1009
                  >
                  >
                  > "Beth Massi [Architect MVP]" <bmassi@comcast .net> wrote in message
                  > news:eZpGIveUFH A.3188@TK2MSFTN GP09.phx.gbl...[color=green]
                  >> That's some pretty old looking code. The & and % characters can be used
                  >> as type characters for Long and Integer (respectively). VB.NET includes
                  >> them only for historical purposes and their use is discouraged. You
                  >> should declare your variables instead:
                  >>
                  >> Const ERROR_SUCCESS As Long = 0
                  >> Const ERROR_BADDB As Long = 1009
                  >>
                  >> If you need to use a Long literal in code, use "L" instead of "&". (i.e.
                  >> 123L)
                  >>
                  >> "Lurc" <lurchot@spam.h otmail.com> wrote in message
                  >> news:ebBL6TdUFH A.3400@TK2MSFTN GP10.phx.gbl...[color=darkred]
                  >>> Dear all,
                  >>>
                  >>> From forum, I found some constants definition like
                  >>> Const ERROR_SUCCESS = 0&
                  >>> Const ERROR_BADDB = 1009&
                  >>>
                  >>> I wonder what is the meaning for sign & here?
                  >>>
                  >>> --
                  >>> Best regards,
                  >>> RL
                  >>>
                  >>>[/color]
                  >>
                  >>[/color]
                  >
                  >[/color]


                    Comment

                    • Herfried K. Wagner [MVP]
                      #6
                      Re: Constant definition

                      "Lurc" <lurchot@spam.h otmail.com> schrieb:[color=blue]
                      > From forum, I found some constants definition like
                      > Const ERROR_SUCCESS = 0&
                      > Const ERROR_BADDB = 1009&
                      >
                      > I wonder what is the meaning for sign & here?[/color]

                      In addition to the other replies:

                      Visual Basic Language Specification -- 2.2.1 Type Characters
                      <URL:http://msdn.microsoft. com/library/en-us/vbls7/html/vblrfVBSpec2_2_ 1.asp>

                      Visual Basic Language Concepts -- Type Characters
                      <URL:http://msdn.microsoft. com/library/en-us/vbcn7/html/vbconTypeCharac ters.asp>

                      --
                      M S Herfried K. Wagner
                      M V P <URL:http://dotnet.mvps.org/>
                      V B <URL:http://classicvb.org/petition/>

                        Comment

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