string class that can convert between wchar_t and char

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  • Bren
    #1

    string class that can convert between wchar_t and char


    Hi all,

    I wonder if anyone knows of a string class out there that can do on
    demand conversion from wchar_t to char?

    We are writing an app that will need to be localized and cross
    platform. At this point we are going with Unicode and wchar_t arrays.
    I am considering using the string class.

    We also use a lot of third party libraries, most of which prefer
    ordinary char arrays.

    I am hoping to find a class or macro that can do in-place conversion
    of wchar_t to char arrays, ideally something similar to the MS W2A/A2W
    macros. A string class that could accept/manage a wchar_t string and
    return a char* with a call similar to c_str() would also be great as
    well.

    We are currently using a function which accepts a char* to an
    allocated string and converts a wchar_t string into it, but this
    requires code before (to alloc) and after (to free) every call. I'm
    hoping for something a little easier to use.

    Any suggestions?



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    • Default User
      #2
      Re: string class that can convert between wchar_t and char

      Bren wrote:[color=blue]
      >
      > Hi all,
      >
      > I wonder if anyone knows of a string class out there that can do on
      > demand conversion from wchar_t to char?[/color]


      What is the nature of the conversion?



      Brian Rodenborn

        Comment

        • Thomas Wintschel
          #3
          [OT] Re: string class that can convert between wchar_t and char

          "Bren" <iambrenNOSPAM@ sympatico.ca> wrote in message
          news:uqornv4v7b 4hvf1a6mmm2qq9r js56166s3@4ax.c om...[color=blue]
          >
          > Hi all,
          >
          > I wonder if anyone knows of a string class out there that can do on
          > demand conversion from wchar_t to char?
          >
          > We are writing an app that will need to be localized and cross
          > platform. At this point we are going with Unicode and wchar_t arrays.
          > I am considering using the string class.
          >
          > We also use a lot of third party libraries, most of which prefer
          > ordinary char arrays.
          >
          > I am hoping to find a class or macro that can do in-place conversion
          > of wchar_t to char arrays, ideally something similar to the MS W2A/A2W
          > macros. A string class that could accept/manage a wchar_t string and
          > return a char* with a call similar to c_str() would also be great as
          > well.
          >
          > We are currently using a function which accepts a char* to an
          > allocated string and converts a wchar_t string into it, but this
          > requires code before (to alloc) and after (to free) every call. I'm
          > hoping for something a little easier to use.
          >
          > Any suggestions?
          >[/color]

          This is off-topic and should be asked in a windows newsgroup but...

          Try _bstr_t in the ATL package (include comutil.h (or comdef.h)).

          Tom


            Comment

            • Bren
              #4
              Re: string class that can convert between wchar_t and char

              On Fri, 3 Oct 2003 22:12:52 GMT, Default User <first.last@com pany.com>
              wrote:
              [color=blue]
              >Bren wrote:[color=green]
              >>
              >> Hi all,
              >>
              >> I wonder if anyone knows of a string class out there that can do on
              >> demand conversion from wchar_t to char?[/color]
              >
              >
              >What is the nature of the conversion?[/color]

              Ummmmm, convert a string from wchar_t to char, and/or back?



              -----= Posted via Newsfeeds.Com, Uncensored Usenet News =-----
              http://www.newsfeeds.com - The #1 Newsgroup Service in the World!
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                Comment

                • Peter van Merkerk
                  #5
                  Re: string class that can convert between wchar_t and char

                  > >> I wonder if anyone knows of a string class out there that can do on[color=blue][color=green][color=darkred]
                  > >> demand conversion from wchar_t to char?[/color]
                  > >
                  > >What is the nature of the conversion?[/color]
                  >
                  > Ummmmm, convert a string from wchar_t to char, and/or back?[/color]

                  Not every possible wchar_t value can be represented by a char, hence
                  some conversion needs to take place. Depending on your requirements the
                  wchar_t to char conversion could be as simple as stripping the higher
                  order bits or as complicated as converting to an encoding that uses
                  escape codes to represent certain characters.

                  --
                  Peter van Merkerk
                  peter.van.merke rk(at)dse.nl


                    Comment

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