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  3. Once more unto the C++, dear friends, once more

Once more unto the C++, dear friends, once more

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  • P pelnor

    I have not written any C++ code since 2001. Now I'm dragging one of my old dll's out of mothballs to add some new features. Some where in those 8 absent years the garbage collector or my brain declared C++ syntax of no use and deleted it for me. Now I'm staring at my code wondering what all the hieroglyphics are for. Let's see there's this * guy. He's got something to do with pointers. It's attached or next to some of my variables. Then there's ::, <<, >>, wait.... wait, it's coming back to me.... "<<" is super less than. Got it moving on. Then I run into ^. Oh come on! Who thought ^ was a good idea? Linker? what is that? You mean I have to tell this linker of yours where to look for things just so I can compile? There isn't just a magic "make it go button"? This is going to be a long day. Better load up on the caffeine.

    Latest toy built for fun: Web Lens Best feature: Full size images when using Google image search.

    I Offline
    I Offline
    Ian Shlasko
    wrote on last edited by
    #4

    I remember that syntax! << = Move left >> = Move right ^ = Jump :: = Run * = Shoot a fireball

    pelnor wrote:

    Oh come on! Who thought ^ was a good idea?

    Well what fun is a platformer if you can't jump?

    Proud to have finally moved to the A-Ark. Which one are you in? Developer, Author (Guardians of Xen)

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    • P pelnor

      I have not written any C++ code since 2001. Now I'm dragging one of my old dll's out of mothballs to add some new features. Some where in those 8 absent years the garbage collector or my brain declared C++ syntax of no use and deleted it for me. Now I'm staring at my code wondering what all the hieroglyphics are for. Let's see there's this * guy. He's got something to do with pointers. It's attached or next to some of my variables. Then there's ::, <<, >>, wait.... wait, it's coming back to me.... "<<" is super less than. Got it moving on. Then I run into ^. Oh come on! Who thought ^ was a good idea? Linker? what is that? You mean I have to tell this linker of yours where to look for things just so I can compile? There isn't just a magic "make it go button"? This is going to be a long day. Better load up on the caffeine.

      Latest toy built for fun: Web Lens Best feature: Full size images when using Google image search.

      R Offline
      R Offline
      Rama Krishna Vavilala
      wrote on last edited by
      #5

      pelnor wrote:

      Then I run into ^. Oh come on! Who thought ^ was a good idea?

      Are you talking about C++/CLI? Then I agree with you.

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      • R Rama Krishna Vavilala

        pelnor wrote:

        Then I run into ^. Oh come on! Who thought ^ was a good idea?

        Are you talking about C++/CLI? Then I agree with you.

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        Dan Neely
        wrote on last edited by
        #6

        ^ is XOR in C++, vs exponentiation in arithmetic. It's retarded.

        The latest nation. Procrastination.

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        • D Dan Neely

          ^ is XOR in C++, vs exponentiation in arithmetic. It's retarded.

          The latest nation. Procrastination.

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          R Offline
          Rama Krishna Vavilala
          wrote on last edited by
          #7

          Yep! I know that:) but never had any problem with it. But ^ in C++/CLI, also called hat or cap, looks just plain ugly.

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          • R Rama Krishna Vavilala

            Yep! I know that:) but never had any problem with it. But ^ in C++/CLI, also called hat or cap, looks just plain ugly.

            S Offline
            S Offline
            Single Step Debugger
            wrote on last edited by
            #8

            For some odd reason ^ replaced the _gc in the first CLI.

            The narrow specialist in the broad sense of the word is a complete idiot in the narrow sense of the word. Advertise here – minimum three posts per day are guaranteed.

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            • S Single Step Debugger

              For some odd reason ^ replaced the _gc in the first CLI.

              The narrow specialist in the broad sense of the word is a complete idiot in the narrow sense of the word. Advertise here – minimum three posts per day are guaranteed.

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              R Offline
              Rama Krishna Vavilala
              wrote on last edited by
              #9

              Deyan Georgiev wrote:

              replaced the _gc

              Which was even worse :).

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              • R Rama Krishna Vavilala

                Deyan Georgiev wrote:

                replaced the _gc

                Which was even worse :).

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                Nemanja Trifunovic
                wrote on last edited by
                #10

                Rama Krishna Vavilala wrote:

                Which was even worse

                I dissagree. Underscores are a standard-sanctioned way to extend the language. There was really no reason to break compatibility with Managed C++ and introduce "C++/CLI".

                utf8-cpp

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                • D Dan Neely

                  ^ is XOR in C++, vs exponentiation in arithmetic. It's retarded.

                  The latest nation. Procrastination.

                  J Offline
                  J Offline
                  John M Drescher
                  wrote on last edited by
                  #11

                  Dan Neely wrote:

                  It's retarded.

                  Agreed. Although, in the 600K to 800K lines of C++ I have produced I do not recall ever using that one time. I would have had to look it up if I saw it..

                  John

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                  • P pelnor

                    I have not written any C++ code since 2001. Now I'm dragging one of my old dll's out of mothballs to add some new features. Some where in those 8 absent years the garbage collector or my brain declared C++ syntax of no use and deleted it for me. Now I'm staring at my code wondering what all the hieroglyphics are for. Let's see there's this * guy. He's got something to do with pointers. It's attached or next to some of my variables. Then there's ::, <<, >>, wait.... wait, it's coming back to me.... "<<" is super less than. Got it moving on. Then I run into ^. Oh come on! Who thought ^ was a good idea? Linker? what is that? You mean I have to tell this linker of yours where to look for things just so I can compile? There isn't just a magic "make it go button"? This is going to be a long day. Better load up on the caffeine.

                    Latest toy built for fun: Web Lens Best feature: Full size images when using Google image search.

                    M Offline
                    M Offline
                    Maximilien
                    wrote on last edited by
                    #12

                    pelnor wrote:

                    Then I run into ^. Oh come on! Who thought ^ was a good idea?

                    It's a chinese pointer.

                    This signature was proudly tested on animals.

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                    • P pelnor

                      I have not written any C++ code since 2001. Now I'm dragging one of my old dll's out of mothballs to add some new features. Some where in those 8 absent years the garbage collector or my brain declared C++ syntax of no use and deleted it for me. Now I'm staring at my code wondering what all the hieroglyphics are for. Let's see there's this * guy. He's got something to do with pointers. It's attached or next to some of my variables. Then there's ::, <<, >>, wait.... wait, it's coming back to me.... "<<" is super less than. Got it moving on. Then I run into ^. Oh come on! Who thought ^ was a good idea? Linker? what is that? You mean I have to tell this linker of yours where to look for things just so I can compile? There isn't just a magic "make it go button"? This is going to be a long day. Better load up on the caffeine.

                      Latest toy built for fun: Web Lens Best feature: Full size images when using Google image search.

                      S Offline
                      S Offline
                      Single Step Debugger
                      wrote on last edited by
                      #13

                      And if you put “&” before some variable, it will returns a strange combination of letters and numbers. I usually use this cute property for getting random numbers in runtime – works great!

                      The narrow specialist in the broad sense of the word is a complete idiot in the narrow sense of the word. Advertise here – minimum three posts per day are guaranteed.

                      1 Reply Last reply
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                      • N Nemanja Trifunovic

                        Rama Krishna Vavilala wrote:

                        Which was even worse

                        I dissagree. Underscores are a standard-sanctioned way to extend the language. There was really no reason to break compatibility with Managed C++ and introduce "C++/CLI".

                        utf8-cpp

                        R Offline
                        R Offline
                        Rama Krishna Vavilala
                        wrote on last edited by
                        #14

                        Nemanja Trifunovic wrote:

                        Underscores are a standard-sanctioned way to extend the language

                        I agree with that. But there was no need for that (_gc keyword) in the first place. The whole thing could have been a lot simpler. The code simply looked ugly.

                        Nemanja Trifunovic wrote:

                        There was really no reason to break compatibility with Managed C++ and introduce "C++/CLI".

                        Managed C++ was ugly so was C++/CLI. So no arguments there.

                        N 1 Reply Last reply
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                        • P pelnor

                          I have not written any C++ code since 2001. Now I'm dragging one of my old dll's out of mothballs to add some new features. Some where in those 8 absent years the garbage collector or my brain declared C++ syntax of no use and deleted it for me. Now I'm staring at my code wondering what all the hieroglyphics are for. Let's see there's this * guy. He's got something to do with pointers. It's attached or next to some of my variables. Then there's ::, <<, >>, wait.... wait, it's coming back to me.... "<<" is super less than. Got it moving on. Then I run into ^. Oh come on! Who thought ^ was a good idea? Linker? what is that? You mean I have to tell this linker of yours where to look for things just so I can compile? There isn't just a magic "make it go button"? This is going to be a long day. Better load up on the caffeine.

                          Latest toy built for fun: Web Lens Best feature: Full size images when using Google image search.

                          D Offline
                          D Offline
                          Dave Parker
                          wrote on last edited by
                          #15

                          It's even better now. As well as pointers and references you now have handles. :) Not that I've ever worked with managed C++ or whatever its called now but I bet it's fun trying to get a handle on pointers to references of pointers to handles. Thing*&^thingy=&somethingNasty; (A while since I did C++ so the above is probably wrong.....)

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                          • P pelnor

                            I have not written any C++ code since 2001. Now I'm dragging one of my old dll's out of mothballs to add some new features. Some where in those 8 absent years the garbage collector or my brain declared C++ syntax of no use and deleted it for me. Now I'm staring at my code wondering what all the hieroglyphics are for. Let's see there's this * guy. He's got something to do with pointers. It's attached or next to some of my variables. Then there's ::, <<, >>, wait.... wait, it's coming back to me.... "<<" is super less than. Got it moving on. Then I run into ^. Oh come on! Who thought ^ was a good idea? Linker? what is that? You mean I have to tell this linker of yours where to look for things just so I can compile? There isn't just a magic "make it go button"? This is going to be a long day. Better load up on the caffeine.

                            Latest toy built for fun: Web Lens Best feature: Full size images when using Google image search.

                            R Offline
                            R Offline
                            RugbyLeague
                            wrote on last edited by
                            #16

                            I am converting a compiler and language runtime written in C++ into C# - that's fun :^)

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                            • E Electron Shepherd

                              pelnor wrote:

                              There isn't just a magic "make it go button"?

                              F5 and a properly configured workspace?

                              Server and Network Monitoring

                              P Offline
                              P Offline
                              pelnor
                              wrote on last edited by
                              #17

                              Propery configured was the challenge. I way jumping the old project over several versions of VS. Things did not go as smooth as i hoped for. But with google by my side i can't fail.

                              Latest toy built for fun: Web Lens Best feature: Full size images when using Google image search.

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                              • A Anthony Mushrow

                                What have you been working with instead?

                                My current favourite word is: Delicious!

                                -SK Genius

                                Game Programming articles start -here[^]-

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                                P Offline
                                pelnor
                                wrote on last edited by
                                #18

                                Several years of VB got in the way. I mostly do c# now so it's not tooooo much culture shock. Just some head scratching.

                                Latest toy built for fun: Web Lens Best feature: Full size images when using Google image search.

                                S A 2 Replies Last reply
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                                • J John M Drescher

                                  Dan Neely wrote:

                                  It's retarded.

                                  Agreed. Although, in the 600K to 800K lines of C++ I have produced I do not recall ever using that one time. I would have had to look it up if I saw it..

                                  John

                                  D Offline
                                  D Offline
                                  Dan Neely
                                  wrote on last edited by
                                  #19

                                  I know I've used it for something before, although I'm not sure what it was. Toggling a bitflag without knowing it's original value???

                                  The latest nation. Procrastination.

                                  P 1 Reply Last reply
                                  0
                                  • R Rama Krishna Vavilala

                                    Nemanja Trifunovic wrote:

                                    Underscores are a standard-sanctioned way to extend the language

                                    I agree with that. But there was no need for that (_gc keyword) in the first place. The whole thing could have been a lot simpler. The code simply looked ugly.

                                    Nemanja Trifunovic wrote:

                                    There was really no reason to break compatibility with Managed C++ and introduce "C++/CLI".

                                    Managed C++ was ugly so was C++/CLI. So no arguments there.

                                    N Offline
                                    N Offline
                                    Nemanja Trifunovic
                                    wrote on last edited by
                                    #20

                                    Rama Krishna Vavilala wrote:

                                    ugly

                                    I find all C-based languages to be ugly (some more than others). It is not about beauty, but usefulness. Managed C++ is useful for some scenarios and that's what matters. I'd rather use beautiful Haskell but it just does not let me get my job done.

                                    utf8-cpp

                                    1 Reply Last reply
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                                    • D Dan Neely

                                      I know I've used it for something before, although I'm not sure what it was. Toggling a bitflag without knowing it's original value???

                                      The latest nation. Procrastination.

                                      P Offline
                                      P Offline
                                      Peter Mulholland
                                      wrote on last edited by
                                      #21

                                      what about swapping 2 values without a temp variable:

                                      char\* start = str;
                                      char\* end = str + (strlen(str) - 1);
                                      
                                      while (start < end) 
                                      {
                                          \*start ^= \*end;
                                          \*end ^= \*start;
                                          \*start++ ^= \*end--;
                                      }
                                      return str;
                                      

                                      Pete

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                                      • P Peter Mulholland

                                        what about swapping 2 values without a temp variable:

                                        char\* start = str;
                                        char\* end = str + (strlen(str) - 1);
                                        
                                        while (start < end) 
                                        {
                                            \*start ^= \*end;
                                            \*end ^= \*start;
                                            \*start++ ^= \*end--;
                                        }
                                        return str;
                                        

                                        Pete

                                        J Offline
                                        J Offline
                                        John M Drescher
                                        wrote on last edited by
                                        #22

                                        I remember that you can do this with XORs however for code readability I would never do that in a program.

                                        John

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                                        • J John M Drescher

                                          I remember that you can do this with XORs however for code readability I would never do that in a program.

                                          John

                                          N Offline
                                          N Offline
                                          Nemanja Trifunovic
                                          wrote on last edited by
                                          #23

                                          John M. Drescher wrote:

                                          you can do this with XORs however for code readability I would never do that in a program

                                          Meh, pack it into a well named inline function, such as swap_in_place() and the readability problem is solved.

                                          utf8-cpp

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