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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

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    Xiangyang Liu
    wrote on last edited by
    #9

    I prefer i++ instead of ++i, for a totally different reason. Consider two weight lifters, they are both starved to qualify for the 55kg competition. The i++ guy can eat 1 kg of delicious food and still qualify for the 55kg class, while the ++i guy has to wait until after the match to eat anything. P.S. May be this is not a good joke. :)[

    My articles and software tools

    ](http://mysite.verizon.net/XiangYangL/index.htm)

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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
      M Offline
      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

        P 1 Reply Last reply
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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

            G 1 Reply Last reply
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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

              J Offline
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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.

                D Offline
                D Offline
                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

                    R Offline
                    R Offline
                    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

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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
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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
                          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

                                G Offline
                                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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