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  3. POLL: Programming style - i++ vs. ++i

POLL: Programming style - i++ vs. ++i

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  • P peterchen

    After a batch of interviews, the second most notable thing is that where both ++i and i++ are possible, all candidates used i++ Having optimizied for older compilers I automatically opt for the "simpler" concept of ++i except where I explicitely need the postfix increment. (I now that it makes no difference to today's compilers, but it might still save some microseconds when compiling :rolleyes: ) so - Vote 5 if it's for(int i=0; i<n; ++i) , and Vote 1 if it's for(int i=0; i<n; i++) for you. if the "programming" in the title triggers a pawlowian in you, please vote 3


    we are here to help each other get through this thing, whatever it is Vonnegut jr.
    sighist || Agile Programming | doxygen

    M Offline
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    Michael Dunn
    wrote on last edited by
    #10

    I absolutely detest ++i, but for no good reason... it just looks weird. :omg: --Mike-- Personal stuff:: Ericahist | Homepage Shareware stuff:: 1ClickPicGrabber | RightClick-Encrypt CP stuff:: CP SearchBar v2.0.2 | C++ Forum FAQ ---- You cannot truly appreciate Dilbert unless you've read it in the original Klingon.

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    • P peterchen

      After a batch of interviews, the second most notable thing is that where both ++i and i++ are possible, all candidates used i++ Having optimizied for older compilers I automatically opt for the "simpler" concept of ++i except where I explicitely need the postfix increment. (I now that it makes no difference to today's compilers, but it might still save some microseconds when compiling :rolleyes: ) so - Vote 5 if it's for(int i=0; i<n; ++i) , and Vote 1 if it's for(int i=0; i<n; i++) for you. if the "programming" in the title triggers a pawlowian in you, please vote 3


      we are here to help each other get through this thing, whatever it is Vonnegut jr.
      sighist || Agile Programming | doxygen

      C Offline
      C Offline
      Christian Graus
      wrote on last edited by
      #11

      ++i, for sure. Although a compiler may optimise, it's in theory more efficient, and never less so. Christian I have drunk the cool-aid and found it wan and bitter. - Chris Maunder

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      • P peterchen

        After a batch of interviews, the second most notable thing is that where both ++i and i++ are possible, all candidates used i++ Having optimizied for older compilers I automatically opt for the "simpler" concept of ++i except where I explicitely need the postfix increment. (I now that it makes no difference to today's compilers, but it might still save some microseconds when compiling :rolleyes: ) so - Vote 5 if it's for(int i=0; i<n; ++i) , and Vote 1 if it's for(int i=0; i<n; i++) for you. if the "programming" in the title triggers a pawlowian in you, please vote 3


        we are here to help each other get through this thing, whatever it is Vonnegut jr.
        sighist || Agile Programming | doxygen

        J Offline
        J Offline
        John M Drescher
        wrote on last edited by
        #12

        I rarely use ++i because then I would have to take a few seconds to think on which order things are executed... John

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        • G Gary R Wheeler

          In terms of compiler optimization intelligence, I think we've finally surpassed the smarts of the VAX FORTRAN compiler of the late 80's. A human being could not write code that was more efficient than what that compiler generated.


          Software Zen: delete this;

          RaviBeeR Offline
          RaviBeeR Offline
          RaviBee
          wrote on last edited by
          #13

          Memories... (my Mass license plate is VAX-VMS) :cool: Spent 8 very happy years @ Digital (when it was still Digital). /ravi My new year's resolution: 2048 x 1536 Home | Articles | Freeware | Music ravib@ravib.com

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          • J John M Drescher

            I rarely use ++i because then I would have to take a few seconds to think on which order things are executed... John

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            Jonathan de Halleux
            wrote on last edited by
            #14

            I use foreach. :) Jonathan de Halleux - My Blog

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            • R Rick York

              I wish there was a neither option. I try to avoid both and use i += 1. Two reasons : I wrote a scripting engine and I saw little reason for the ++ and -- operators and did not include them. This got me into the habit of using the += and -= operators which I did include. Second reason - if, for some odd reason, the incrementer needs to change to a 2 it is easier. Actually, a macro or "const int" value for the incrementer is a better way to go which I prefer to use along with the += and -= operators. Bottom line - I prefer the += method to be as consistent as possible but that's just me. __________________________________________ a two cent stamp short of going postal.

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              Daniel Turini
              wrote on last edited by
              #15

              Rick York wrote: I saw little reason for the ++ and -- operators and did not include them You code in C**++** and do not see the need for the ++ operator? :omg::wtf: Yes, even I am blogging now!

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              • P peterchen

                After a batch of interviews, the second most notable thing is that where both ++i and i++ are possible, all candidates used i++ Having optimizied for older compilers I automatically opt for the "simpler" concept of ++i except where I explicitely need the postfix increment. (I now that it makes no difference to today's compilers, but it might still save some microseconds when compiling :rolleyes: ) so - Vote 5 if it's for(int i=0; i<n; ++i) , and Vote 1 if it's for(int i=0; i<n; i++) for you. if the "programming" in the title triggers a pawlowian in you, please vote 3


                we are here to help each other get through this thing, whatever it is Vonnegut jr.
                sighist || Agile Programming | doxygen

                L Offline
                L Offline
                Lost User
                wrote on last edited by
                #16

                ++i is safe there but a bad habit in other places so I stick with i++. Elaine :rose: The tigress is here :-D

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                • J Jonathan de Halleux

                  I use foreach. :) Jonathan de Halleux - My Blog

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                  roel_
                  wrote on last edited by
                  #17

                  Spoken with wisdom :)

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                  • L Lost User

                    ++i is safe there but a bad habit in other places so I stick with i++. Elaine :rose: The tigress is here :-D

                    P Offline
                    P Offline
                    peterchen
                    wrote on last edited by
                    #18

                    Trollslayer wrote: but a bad habit in other places where? (never encountered one)


                    we are here to help each other get through this thing, whatever it is Vonnegut jr.
                    sighist || Agile Programming | doxygen

                    1 Reply Last reply
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                    • C Christian Graus

                      ++i, for sure. Although a compiler may optimise, it's in theory more efficient, and never less so. Christian I have drunk the cool-aid and found it wan and bitter. - Chris Maunder

                      P Offline
                      P Offline
                      peterchen
                      wrote on last edited by
                      #19

                      exactly my thought - dunno why you were voted down...


                      we are here to help each other get through this thing, whatever it is Vonnegut jr.
                      sighist || Agile Programming | doxygen

                      C 1 Reply Last reply
                      0
                      • P peterchen

                        After a batch of interviews, the second most notable thing is that where both ++i and i++ are possible, all candidates used i++ Having optimizied for older compilers I automatically opt for the "simpler" concept of ++i except where I explicitely need the postfix increment. (I now that it makes no difference to today's compilers, but it might still save some microseconds when compiling :rolleyes: ) so - Vote 5 if it's for(int i=0; i<n; ++i) , and Vote 1 if it's for(int i=0; i<n; i++) for you. if the "programming" in the title triggers a pawlowian in you, please vote 3


                        we are here to help each other get through this thing, whatever it is Vonnegut jr.
                        sighist || Agile Programming | doxygen

                        M Offline
                        M Offline
                        megaadam
                        wrote on last edited by
                        #20

                        // real programmers use i = false ? 1 - i : 1 + i; :suss: _____________________________________ Action without thought is not action Action without emotion is not life

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                        • P peterchen

                          After a batch of interviews, the second most notable thing is that where both ++i and i++ are possible, all candidates used i++ Having optimizied for older compilers I automatically opt for the "simpler" concept of ++i except where I explicitely need the postfix increment. (I now that it makes no difference to today's compilers, but it might still save some microseconds when compiling :rolleyes: ) so - Vote 5 if it's for(int i=0; i<n; ++i) , and Vote 1 if it's for(int i=0; i<n; i++) for you. if the "programming" in the title triggers a pawlowian in you, please vote 3


                          we are here to help each other get through this thing, whatever it is Vonnegut jr.
                          sighist || Agile Programming | doxygen

                          D Offline
                          D Offline
                          David Wulff
                          wrote on last edited by
                          #21

                          peterchen wrote: please vote 3 Won't that skew the results? I thought different levels of members got different vote weights. :~ FWIW I'm an i++ guy.


                          David Wulff The Royal Woofle Museum

                          Putting the laughter back into slaughter

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                          • P peterchen

                            After a batch of interviews, the second most notable thing is that where both ++i and i++ are possible, all candidates used i++ Having optimizied for older compilers I automatically opt for the "simpler" concept of ++i except where I explicitely need the postfix increment. (I now that it makes no difference to today's compilers, but it might still save some microseconds when compiling :rolleyes: ) so - Vote 5 if it's for(int i=0; i<n; ++i) , and Vote 1 if it's for(int i=0; i<n; i++) for you. if the "programming" in the title triggers a pawlowian in you, please vote 3


                            we are here to help each other get through this thing, whatever it is Vonnegut jr.
                            sighist || Agile Programming | doxygen

                            A Offline
                            A Offline
                            Antony M Kancidrowski
                            wrote on last edited by
                            #22

                            Strange for incrementing integers in for statements I use i++ For incrementing itterators I use ++it. Ant. I'm hard, yet soft.
                            I'm coloured, yet clear.
                            I'm fuity and sweet.
                            I'm jelly, what am I? Muse on it further, I shall return!
                            - David Williams (Little Britain)

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                            • RaviBeeR RaviBee

                              Memories... (my Mass license plate is VAX-VMS) :cool: Spent 8 very happy years @ Digital (when it was still Digital). /ravi My new year's resolution: 2048 x 1536 Home | Articles | Freeware | Music ravib@ravib.com

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                              G Offline
                              Gary Wheeler
                              wrote on last edited by
                              #23

                              Indeed. I used to write entire applications in DCL :-O.


                              Software Zen: delete this;

                              RaviBeeR 1 Reply Last reply
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                              • G Gary Wheeler

                                Indeed. I used to write entire applications in DCL :-O.


                                Software Zen: delete this;

                                RaviBeeR Offline
                                RaviBeeR Offline
                                RaviBee
                                wrote on last edited by
                                #24

                                Oh yeah! Remember the DEC Professional? They were kind enough to publish several of my DCL hacks. I recall (with awe) when DCL released with VMS 3.1 first offered the END IF clause. What power! :omg: /ravi My new year's resolution: 2048 x 1536 Home | Articles | Freeware | Music ravib@ravib.com

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                                • D Daniel Turini

                                  Rick York wrote: I saw little reason for the ++ and -- operators and did not include them You code in C**++** and do not see the need for the ++ operator? :omg::wtf: Yes, even I am blogging now!

                                  R Offline
                                  R Offline
                                  Rick York
                                  wrote on last edited by
                                  #25

                                  No, not in a scripting language that has no concept of objects. __________________________________________ a two cent stamp short of going postal.

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                                  • P peterchen

                                    exactly my thought - dunno why you were voted down...


                                    we are here to help each other get through this thing, whatever it is Vonnegut jr.
                                    sighist || Agile Programming | doxygen

                                    C Offline
                                    C Offline
                                    Christian Graus
                                    wrote on last edited by
                                    #26

                                    I am ALWAYS voted down. Come to the soapbox if you want to find out why :P Christian I have drunk the cool-aid and found it wan and bitter. - Chris Maunder

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