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About strings in c language

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  • D dusty_dex

    Here is wide character string version for international users.

    const wchar_t* string = "string";

    Unicode/MBCS gets very messy developing on Windows, dependent on whether UNICODE is defined at compile time. see this article for a comprehensive explanation. What-are-TCHAR-WCHAR-LPSTR-LPWSTR-LPCTSTR-etc? :)

    "It's true that hard work never killed anyone. But I figure, why take the chance." - Ronald Reagan That's what machines are for. Got a problem? Sleep on it.

    L Offline
    L Offline
    Lost User
    wrote on last edited by
    #7

    I thnk you forgot the L prefix.

    Use the best guess

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    • D dusty_dex

      Here is wide character string version for international users.

      const wchar_t* string = "string";

      Unicode/MBCS gets very messy developing on Windows, dependent on whether UNICODE is defined at compile time. see this article for a comprehensive explanation. What-are-TCHAR-WCHAR-LPSTR-LPWSTR-LPCTSTR-etc? :)

      "It's true that hard work never killed anyone. But I figure, why take the chance." - Ronald Reagan That's what machines are for. Got a problem? Sleep on it.

      L Offline
      L Offline
      Lost User
      wrote on last edited by
      #8

      That isnt going to work. As Richrd says it needs to be const wchar_t* string = L"string"; or at the vey least use the T() macro and use tchars.

      ============================== Nothing to say.

      D 1 Reply Last reply
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      • A Ajay kumar1247

        do you know how to assign strings in c program?please answer me.

        L Offline
        L Offline
        Lost User
        wrote on last edited by
        #9

        strcpy? Ever looked at that? Even beter strncpy, is that what you mean? For example;

        char mystr[100];

        memset(mystr, 0, 100); // not necessary but I like it tidy

        strcpy(mystr, "ask a better question");

        ============================== Nothing to say.

        H 1 Reply Last reply
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        • L Lost User

          strcpy? Ever looked at that? Even beter strncpy, is that what you mean? For example;

          char mystr[100];

          memset(mystr, 0, 100); // not necessary but I like it tidy

          strcpy(mystr, "ask a better question");

          ============================== Nothing to say.

          H Offline
          H Offline
          H Brydon
          wrote on last edited by
          #10

          Erudite_Eric wrote:

          char mystr[100];   memset(mystr, 0, 100); // not necessary but I like it tidy strcpy(mystr, "ask a better question");

          I have always held that less code is better code. When doing this kind of thing I prefer the syntax:

          char mystr[100] = {0};

          strcpy(mystr, "ask a better question");

          which I think is clearer and lets the compiler do all the work. [Also I would use strcpy_s() and probably several other stylistic issues...]

          -- Harvey

          L 1 Reply Last reply
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          • L Lost User

            That isnt going to work. As Richrd says it needs to be const wchar_t* string = L"string"; or at the vey least use the T() macro and use tchars.

            ============================== Nothing to say.

            D Offline
            D Offline
            dusty_dex
            wrote on last edited by
            #11

            Yes, I realise that now. :doh: I've been avoiding wide-char & unicode for as long as possible because it does my frickin' head in. Only now am I coming to regret not dealing with it sooner. :sigh:

            "It's true that hard work never killed anyone. But I figure, why take the chance." - Ronald Reagan That's what machines are for. Got a problem? Sleep on it.

            L 1 Reply Last reply
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            • H H Brydon

              Erudite_Eric wrote:

              char mystr[100];   memset(mystr, 0, 100); // not necessary but I like it tidy strcpy(mystr, "ask a better question");

              I have always held that less code is better code. When doing this kind of thing I prefer the syntax:

              char mystr[100] = {0};

              strcpy(mystr, "ask a better question");

              which I think is clearer and lets the compiler do all the work. [Also I would use strcpy_s() and probably several other stylistic issues...]

              -- Harvey

              L Offline
              L Offline
              Lost User
              wrote on last edited by
              #12

              Yeah, I actually allocate all arrays on the heap because buffer overruns are tracked better and dont trash the stack making it easier to debug so I always have the memset. Of course dont forget the compiler is just doing the memset for you, it is invisible, but still takes place so isnt any different when the code actually runs.

              ============================== Nothing to say.

              1 Reply Last reply
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              • D dusty_dex

                Yes, I realise that now. :doh: I've been avoiding wide-char & unicode for as long as possible because it does my frickin' head in. Only now am I coming to regret not dealing with it sooner. :sigh:

                "It's true that hard work never killed anyone. But I figure, why take the chance." - Ronald Reagan That's what machines are for. Got a problem? Sleep on it.

                L Offline
                L Offline
                Lost User
                wrote on last edited by
                #13

                Avoiding unicode? Why, its great! Really, all the languages, all the localisation taken care of, propper strings. No messing around! Go for it! :)

                ============================== Nothing to say.

                D 1 Reply Last reply
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                • L Lost User

                  Avoiding unicode? Why, its great! Really, all the languages, all the localisation taken care of, propper strings. No messing around! Go for it! :)

                  ============================== Nothing to say.

                  D Offline
                  D Offline
                  dusty_dex
                  wrote on last edited by
                  #14

                  The problem isn't unicode, the problem is (was) patchy support with certain windows APIs having to switch between different encodings to get API-X to behave then switch back again. X|

                  "It's true that hard work never killed anyone. But I figure, why take the chance." - Ronald Reagan That's what machines are for. Got a problem? Sleep on it.

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                  • D dusty_dex

                    Objective-C does. Standard C, no.

                    "It's true that hard work never killed anyone. But I figure, why take the chance." - Ronald Reagan That's what machines are for. Got a problem? Sleep on it.

                    M Offline
                    M Offline
                    Marco Bertschi
                    wrote on last edited by
                    #15

                    So does C++.

                    cheers Marco Bertschi


                    Software Developer Twitter | Facebook | Articles


                    You have absolutely no idea how glad I am that I have no idea at all. - OriginalGriff

                    D 1 Reply Last reply
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                    • A Ajay kumar1247

                      do you know how to assign strings in c program?please answer me.

                      M Offline
                      M Offline
                      Marco Bertschi
                      wrote on last edited by
                      #16

                      Have a look at

                      char[]

                      Char[] are used to store ASCII string in C.

                      cheers Marco Bertschi


                      Software Developer Twitter | Facebook | Articles


                      You have absolutely no idea how glad I am that I have no idea at all. - OriginalGriff

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                      • M Marco Bertschi

                        So does C++.

                        cheers Marco Bertschi


                        Software Developer Twitter | Facebook | Articles


                        You have absolutely no idea how glad I am that I have no idea at all. - OriginalGriff

                        D Offline
                        D Offline
                        dusty_dex
                        wrote on last edited by
                        #17

                        No sign of ++ in the OP heading. That's why I didn't mention it.

                        "It's true that hard work never killed anyone. But I figure, why take the chance." - Ronald Reagan That's what machines are for. Got a problem? Sleep on it.

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