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  • Rasika WIJAYARATNE
    #1

    New syntax

    I am new to C++ so I may be missing something. But doesn't using the new
    syntax ^ instead of * for pointers and 'gcnew' instead of 'new' for example
    make the code very non-portable to unmanaged C++, if the need ever arises?

    Rasika.

    PS. Is it possible to use managed assemblies from unmanaged code?
    Tags: None
    • William DePalo [MVP VC++]
      #2
      Re: New syntax

      "Rasika WIJAYARATNE" <RasikaWIJAYARA TNE@discussions .microsoft.com> wrote in
      message news:870ECC48-DE44-4CB1-8969-633955A37684@mi crosoft.com...[color=blue]
      >I am new to C++ so I may be missing something. But doesn't using the new
      > syntax ^ instead of * for pointers and 'gcnew' instead of 'new' for
      > example
      > make the code very non-portable to unmanaged C++, if the need ever arises?[/color]

      Yes. But that is beside the point. Standard C++ does not provide for
      automatic garbage collection. The new syntax is used for manipulating
      grabage-collected objects on the managed heap.

      Regards,
      Will


        Comment

        • William DePalo [MVP VC++]
          #3
          Re: New syntax

          "Rasika WIJAYARATNE" <RasikaWIJAYARA TNE@discussions .microsoft.com> wrote in
          message news:870ECC48-DE44-4CB1-8969-633955A37684@mi crosoft.com...[color=blue]
          >I am new to C++ so I may be missing something. But doesn't using the new
          > syntax ^ instead of * for pointers and 'gcnew' instead of 'new' for
          > example
          > make the code very non-portable to unmanaged C++, if the need ever arises?[/color]

          Yes. But that is beside the point. Standard C++ does not provide for
          automatic garbage collection. The new syntax is used for manipulating
          grabage-collected objects on the managed heap.

          Regards,
          Will


            Comment

            • Carl Daniel [VC++ MVP]
              #4
              Re: New syntax

              Rasika WIJAYARATNE wrote:[color=blue]
              > I am new to C++ so I may be missing something. But doesn't using the
              > new syntax ^ instead of * for pointers and 'gcnew' instead of 'new'
              > for example make the code very non-portable to unmanaged C++, if the
              > need ever arises?[/color]

              Yes.
              [color=blue]
              >
              > Rasika.
              >
              > PS. Is it possible to use managed assemblies from unmanaged code?[/color]

              Yes. If the main program is unmanaged, you can use the .NET hosting APIs to
              host the CLR and managed code in your unmanaged app. If the main program
              can be managed, then VC++ can handle all the interop for you and you can mix
              and match managed/unmanaged code pretty much as you see fit.

              -cd


                Comment

                • Carl Daniel [VC++ MVP]
                  #5
                  Re: New syntax

                  Rasika WIJAYARATNE wrote:[color=blue]
                  > I am new to C++ so I may be missing something. But doesn't using the
                  > new syntax ^ instead of * for pointers and 'gcnew' instead of 'new'
                  > for example make the code very non-portable to unmanaged C++, if the
                  > need ever arises?[/color]

                  Yes.
                  [color=blue]
                  >
                  > Rasika.
                  >
                  > PS. Is it possible to use managed assemblies from unmanaged code?[/color]

                  Yes. If the main program is unmanaged, you can use the .NET hosting APIs to
                  host the CLR and managed code in your unmanaged app. If the main program
                  can be managed, then VC++ can handle all the interop for you and you can mix
                  and match managed/unmanaged code pretty much as you see fit.

                  -cd


                    Comment

                    • Rasika WIJAYARATNE
                      #6
                      Re: New syntax

                      > and match managed/unmanaged code pretty much as you see fit.

                      Can you mix managed and unmanaged code within the same class using C++/CLI?

                        Comment

                        • Rasika WIJAYARATNE
                          #7
                          Re: New syntax

                          > and match managed/unmanaged code pretty much as you see fit.

                          Can you mix managed and unmanaged code within the same class using C++/CLI?

                            Comment

                            • William DePalo [MVP VC++]
                              #8
                              Re: New syntax

                              "Rasika WIJAYARATNE" <RasikaWIJAYARA TNE@discussions .microsoft.com> wrote in
                              message news:2AF5470A-8DB1-48FF-826F-1290A5254565@mi crosoft.com...[color=blue][color=green]
                              >> and match managed/unmanaged code pretty much as you see fit.[/color]
                              >
                              > Can you mix managed and unmanaged code within the same class using
                              > C++/CLI?[/color]

                              Yes, you can.

                              Regards,
                              Will


                                Comment

                                • William DePalo [MVP VC++]
                                  #9
                                  Re: New syntax

                                  "Rasika WIJAYARATNE" <RasikaWIJAYARA TNE@discussions .microsoft.com> wrote in
                                  message news:2AF5470A-8DB1-48FF-826F-1290A5254565@mi crosoft.com...[color=blue][color=green]
                                  >> and match managed/unmanaged code pretty much as you see fit.[/color]
                                  >
                                  > Can you mix managed and unmanaged code within the same class using
                                  > C++/CLI?[/color]

                                  Yes, you can.

                                  Regards,
                                  Will


                                    Comment

                                    • Rasika WIJAYARATNE
                                      #10
                                      Re: New syntax

                                      Thank you for your help.

                                      "William DePalo [MVP VC++]" wrote:
                                      [color=blue]
                                      > "Rasika WIJAYARATNE" <RasikaWIJAYARA TNE@discussions .microsoft.com> wrote in
                                      > message news:2AF5470A-8DB1-48FF-826F-1290A5254565@mi crosoft.com...[color=green][color=darkred]
                                      > >> and match managed/unmanaged code pretty much as you see fit.[/color]
                                      > >
                                      > > Can you mix managed and unmanaged code within the same class using
                                      > > C++/CLI?[/color]
                                      >
                                      > Yes, you can.
                                      >
                                      > Regards,
                                      > Will
                                      >
                                      >
                                      >[/color]

                                        Comment

                                        • Rasika WIJAYARATNE
                                          #11
                                          Re: New syntax

                                          Thank you for your help.

                                          "William DePalo [MVP VC++]" wrote:
                                          [color=blue]
                                          > "Rasika WIJAYARATNE" <RasikaWIJAYARA TNE@discussions .microsoft.com> wrote in
                                          > message news:2AF5470A-8DB1-48FF-826F-1290A5254565@mi crosoft.com...[color=green][color=darkred]
                                          > >> and match managed/unmanaged code pretty much as you see fit.[/color]
                                          > >
                                          > > Can you mix managed and unmanaged code within the same class using
                                          > > C++/CLI?[/color]
                                          >
                                          > Yes, you can.
                                          >
                                          > Regards,
                                          > Will
                                          >
                                          >
                                          >[/color]

                                            Comment

                                            • Rasika WIJAYARATNE
                                              #12
                                              Re: New syntax

                                              Thanks for the information.

                                              "Carl Daniel [VC++ MVP]" wrote:
                                              [color=blue]
                                              > Rasika WIJAYARATNE wrote:[color=green]
                                              > > I am new to C++ so I may be missing something. But doesn't using the
                                              > > new syntax ^ instead of * for pointers and 'gcnew' instead of 'new'
                                              > > for example make the code very non-portable to unmanaged C++, if the
                                              > > need ever arises?[/color]
                                              >
                                              > Yes.
                                              >[color=green]
                                              > >
                                              > > Rasika.
                                              > >
                                              > > PS. Is it possible to use managed assemblies from unmanaged code?[/color]
                                              >
                                              > Yes. If the main program is unmanaged, you can use the .NET hosting APIs to
                                              > host the CLR and managed code in your unmanaged app. If the main program
                                              > can be managed, then VC++ can handle all the interop for you and you can mix
                                              > and match managed/unmanaged code pretty much as you see fit.
                                              >
                                              > -cd
                                              >
                                              >
                                              >[/color]

                                                Comment

                                                • Rasika WIJAYARATNE
                                                  #13
                                                  Re: New syntax

                                                  Thanks for the information.

                                                  "Carl Daniel [VC++ MVP]" wrote:
                                                  [color=blue]
                                                  > Rasika WIJAYARATNE wrote:[color=green]
                                                  > > I am new to C++ so I may be missing something. But doesn't using the
                                                  > > new syntax ^ instead of * for pointers and 'gcnew' instead of 'new'
                                                  > > for example make the code very non-portable to unmanaged C++, if the
                                                  > > need ever arises?[/color]
                                                  >
                                                  > Yes.
                                                  >[color=green]
                                                  > >
                                                  > > Rasika.
                                                  > >
                                                  > > PS. Is it possible to use managed assemblies from unmanaged code?[/color]
                                                  >
                                                  > Yes. If the main program is unmanaged, you can use the .NET hosting APIs to
                                                  > host the CLR and managed code in your unmanaged app. If the main program
                                                  > can be managed, then VC++ can handle all the interop for you and you can mix
                                                  > and match managed/unmanaged code pretty much as you see fit.
                                                  >
                                                  > -cd
                                                  >
                                                  >
                                                  >[/color]

                                                    Comment

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