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Code Optimize

Scheduled Pinned Locked Moved The Weird and The Wonderful
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  • S Snorri Kristjansson

    Don't show a quote from me that you have changed!!!!!

    N Offline
    N Offline
    Nagy Vilmos
    wrote on last edited by
    #26

    Don't get upset. FTFY is a common short hand here, it means "Fixed That For You". Whenever a quote is followed by FTFY, the quoter has intentionally changed the text. There are a myriad of reasons for this. Often it is done for humorous effect or, as in this case, to show that the quoter almost agrees with the OP except for a minor difference. [edit] As a member for eight years, I'd assume you would know this.


    Panic, Chaos, Destruction. My work here is done. Drink. Get drunk. Fall over - P O'H OK, I will win to day or my name isn't Ethel Crudacre! - DD Ethel Crudacre I cannot live by bread alone. Bacon and ketchup are needed as well. - Trollslayer Have a bit more patience with newbies. Of course some of them act dumb - they're often *students*, for heaven's sake - Terry Pratchett

    L S 2 Replies Last reply
    0
    • N Nagy Vilmos

      Don't get upset. FTFY is a common short hand here, it means "Fixed That For You". Whenever a quote is followed by FTFY, the quoter has intentionally changed the text. There are a myriad of reasons for this. Often it is done for humorous effect or, as in this case, to show that the quoter almost agrees with the OP except for a minor difference. [edit] As a member for eight years, I'd assume you would know this.


      Panic, Chaos, Destruction. My work here is done. Drink. Get drunk. Fall over - P O'H OK, I will win to day or my name isn't Ethel Crudacre! - DD Ethel Crudacre I cannot live by bread alone. Bacon and ketchup are needed as well. - Trollslayer Have a bit more patience with newbies. Of course some of them act dumb - they're often *students*, for heaven's sake - Terry Pratchett

      L Offline
      L Offline
      Lost User
      wrote on last edited by
      #27

      Nagy Vilmos wrote:

      As a member for eight years, I'd presume you would know this.

      FTFY :)

      And from the clouds a mighty voice spoke:
      "Smile and be happy, for it could come worse!"

      And I smiled and was happy
      And it came worse.

      N C 2 Replies Last reply
      0
      • L Lost User

        Nagy Vilmos wrote:

        As a member for eight years, I'd presume you would know this.

        FTFY :)

        And from the clouds a mighty voice spoke:
        "Smile and be happy, for it could come worse!"

        And I smiled and was happy
        And it came worse.

        N Offline
        N Offline
        Nagy Vilmos
        wrote on last edited by
        #28

        CDP1802 wrote:

        Nagy Vilmos wrote:

        As a member for eight years, I'd presume you would know this be sober by now.

        FTFY

        ftftfyfy


        Panic, Chaos, Destruction. My work here is done. Drink. Get drunk. Fall over - P O'H OK, I will win to day or my name isn't Ethel Crudacre! - DD Ethel Crudacre I cannot live by bread alone. Bacon and ketchup are needed as well. - Trollslayer Have a bit more patience with newbies. Of course some of them act dumb - they're often *students*, for heaven's sake - Terry Pratchett

        1 Reply Last reply
        0
        • S Snorri Kristjansson

          Agree. There is another VERY important reason why you should NOT change working production code unless you really must; Don't change tried and tested code! Ok. this code sample you show us is a bit clumsy but it works, right? So why change it? IMHO a good programmer must learnt NOT to change production code unless it's really really needed.

          J Offline
          J Offline
          johannesnestler
          wrote on last edited by
          #29

          I think I have to support your statements downvoted by others - you seem to stand allone with your opinion - Not any longer! @All the theorists with the "well tested code"... I learned the lesson not to change production code "on the fly". Because sometime a piece of code looks stupid or ugly - but it's just an undocumented workarround for a bug in an underlaying system or whatever. It's not always good to assume all other programmers are idiots... So if I change (or better "refactor") production code - this is my intention - it's like adding a new feature, and yes if there are unit tests in place, it helps. But @all the "perfect code" guys: If it is a "well tested code"-project, unit tests exists - how likley is it to find a real coding horror, isn't it more likely to find it in the "not so well tested" code bases (unit tests??? - whats a "unit"?). I view myself as a "perfectionist" while coding, code style nazi, refactoring fan,... - but there is a real world out there where "perfection" most times mean: "Not complete crap" - I worked on tons of codes in my life, ranging in style and effort from "bloody beginner" to "code god" but "academic perfection" I have rarely seen in a non trivial product. Don't get me wrong - I'm always a fan of "better/shorter code" - but some commenters may have to go through some real projects (why not let's say > 1million lines of code), and learn to leave the existing code - if nobody complains about it - alone! :rose:

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          0
          • R Rajesh Anuhya

            Good, every one saying about the readability and Debugging, However this is a Small code, which is called by many classes. my point is why should i declare a extra variable "resultflag", where this method called 5000+ times in every 10 seconds.

            my Tip/Tricks[^] | "Rajesh-Puli" now "Rajesh-Anuhya"

            J Offline
            J Offline
            johannesnestler
            wrote on last edited by
            #30

            omg - bad luck with this example for your statement - have a look at the resulting IL - the variable declaration will be optimized away in the release build... If you would realy gain performance...

            1 Reply Last reply
            0
            • R Rajesh Anuhya

              Today I found this code, from DAL class

              public Boolean Execute_NoN_Query(string Sqlstring)
              {
              int ResultFlag = 0;
              ResultFlag = MSSqlHelper.SqlHelper.ExecuteNonQuery(SqlServerConnection.Cn, CommandType.Text, Sqlstring);

                        if  (ResultFlag != 0)
                            return true;
                        else
                            return false;
                }
              

              My Code is ....

              public Boolean Execute_NoN_Query(string Sqlstring)
              {
              return (0 != MSSqlHelper.SqlHelper.ExecuteNonQuery(SqlServerConnection.Cn, CommandType.Text, Sqlstring));
              }

              my Tip/Tricks[^] | "Rajesh-Puli" now "Rajesh-Anuhya"

              R Offline
              R Offline
              RobCroll
              wrote on last edited by
              #31

              I would have fixed the argument name "Sqlstring" while I was at it. :)

              "You get that on the big jobs."

              1 Reply Last reply
              0
              • T the Kris

                If examining the result while debugging is your main concern, you can still write

                int ResultFlag = MSSqlHelper.SqlHelper.ExecuteNonQuery(SqlServerConnection.Cn, CommandType.Text, Sqlstring);

                return ResultFlag != 0;

                I've seen worse though...

                const bool valTrue = true;
                const bool valFalse = false;

                bool doTheWork()
                {
                ...more impressive code...

                if ( result == valTrue ) return true;
                else return false;
                }

                That coder was preparing himself for the time that valTrue became false or something!?

                L Offline
                L Offline
                loctrice
                wrote on last edited by
                #32

                I see that all the time. You have to change doTheWork to workData though

                1 Reply Last reply
                0
                • T the Kris

                  If examining the result while debugging is your main concern, you can still write

                  int ResultFlag = MSSqlHelper.SqlHelper.ExecuteNonQuery(SqlServerConnection.Cn, CommandType.Text, Sqlstring);

                  return ResultFlag != 0;

                  I've seen worse though...

                  const bool valTrue = true;
                  const bool valFalse = false;

                  bool doTheWork()
                  {
                  ...more impressive code...

                  if ( result == valTrue ) return true;
                  else return false;
                  }

                  That coder was preparing himself for the time that valTrue became false or something!?

                  A Offline
                  A Offline
                  AspDotNetDev
                  wrote on last edited by
                  #33

                  Wow, that is bad. They don't even use an abstract factory pattern to generate valTrue and valFalse. What happens if you want to change how valTrue and valFalse change later on, but without changing the DLL!?

                  Thou mewling ill-breeding pignut!

                  1 Reply Last reply
                  0
                  • J johannesnestler

                    I think I have to support your statements downvoted by others - you seem to stand allone with your opinion - Not any longer! @All the theorists with the "well tested code"... I learned the lesson not to change production code "on the fly". Because sometime a piece of code looks stupid or ugly - but it's just an undocumented workarround for a bug in an underlaying system or whatever. It's not always good to assume all other programmers are idiots... So if I change (or better "refactor") production code - this is my intention - it's like adding a new feature, and yes if there are unit tests in place, it helps. But @all the "perfect code" guys: If it is a "well tested code"-project, unit tests exists - how likley is it to find a real coding horror, isn't it more likely to find it in the "not so well tested" code bases (unit tests??? - whats a "unit"?). I view myself as a "perfectionist" while coding, code style nazi, refactoring fan,... - but there is a real world out there where "perfection" most times mean: "Not complete crap" - I worked on tons of codes in my life, ranging in style and effort from "bloody beginner" to "code god" but "academic perfection" I have rarely seen in a non trivial product. Don't get me wrong - I'm always a fan of "better/shorter code" - but some commenters may have to go through some real projects (why not let's say > 1million lines of code), and learn to leave the existing code - if nobody complains about it - alone! :rose:

                    J Offline
                    J Offline
                    Jorgen Andersson
                    wrote on last edited by
                    #34

                    johannesnestler wrote:

                    I view myself as a "perfectionist" while coding, code style nazi, refactoring fan

                    You should apply 5 seconds of that into your authoring skills. You really need to work on your paragraphs if you want people to actually read your posts.

                    Light moves faster than sound. That is why some people appear bright, until you hear them speak. List of common misconceptions

                    J C 2 Replies Last reply
                    0
                    • N Nagy Vilmos

                      Don't get upset. FTFY is a common short hand here, it means "Fixed That For You". Whenever a quote is followed by FTFY, the quoter has intentionally changed the text. There are a myriad of reasons for this. Often it is done for humorous effect or, as in this case, to show that the quoter almost agrees with the OP except for a minor difference. [edit] As a member for eight years, I'd assume you would know this.


                      Panic, Chaos, Destruction. My work here is done. Drink. Get drunk. Fall over - P O'H OK, I will win to day or my name isn't Ethel Crudacre! - DD Ethel Crudacre I cannot live by bread alone. Bacon and ketchup are needed as well. - Trollslayer Have a bit more patience with newbies. Of course some of them act dumb - they're often *students*, for heaven's sake - Terry Pratchett

                      S Offline
                      S Offline
                      Snorri Kristjansson
                      wrote on last edited by
                      #35

                      Sorry, sorry. Mea maxima culpa. (and LOL)

                      1 Reply Last reply
                      0
                      • J johannesnestler

                        I think I have to support your statements downvoted by others - you seem to stand allone with your opinion - Not any longer! @All the theorists with the "well tested code"... I learned the lesson not to change production code "on the fly". Because sometime a piece of code looks stupid or ugly - but it's just an undocumented workarround for a bug in an underlaying system or whatever. It's not always good to assume all other programmers are idiots... So if I change (or better "refactor") production code - this is my intention - it's like adding a new feature, and yes if there are unit tests in place, it helps. But @all the "perfect code" guys: If it is a "well tested code"-project, unit tests exists - how likley is it to find a real coding horror, isn't it more likely to find it in the "not so well tested" code bases (unit tests??? - whats a "unit"?). I view myself as a "perfectionist" while coding, code style nazi, refactoring fan,... - but there is a real world out there where "perfection" most times mean: "Not complete crap" - I worked on tons of codes in my life, ranging in style and effort from "bloody beginner" to "code god" but "academic perfection" I have rarely seen in a non trivial product. Don't get me wrong - I'm always a fan of "better/shorter code" - but some commenters may have to go through some real projects (why not let's say > 1million lines of code), and learn to leave the existing code - if nobody complains about it - alone! :rose:

                        S Offline
                        S Offline
                        Snorri Kristjansson
                        wrote on last edited by
                        #36

                        Thank you. This was exactly the point I was trying to make.

                        1 Reply Last reply
                        0
                        • J Jorgen Andersson

                          johannesnestler wrote:

                          I view myself as a "perfectionist" while coding, code style nazi, refactoring fan

                          You should apply 5 seconds of that into your authoring skills. You really need to work on your paragraphs if you want people to actually read your posts.

                          Light moves faster than sound. That is why some people appear bright, until you hear them speak. List of common misconceptions

                          J Offline
                          J Offline
                          johannesnestler
                          wrote on last edited by
                          #37

                          thank you for feedback, i'll try to follow your advice in my future comments :sigh: (it's a lot easier for me to structure code than normal text)

                          F 1 Reply Last reply
                          0
                          • J johannesnestler

                            thank you for feedback, i'll try to follow your advice in my future comments :sigh: (it's a lot easier for me to structure code than normal text)

                            F Offline
                            F Offline
                            fjdiewornncalwe
                            wrote on last edited by
                            #38

                            You're not alone on that one. I think that many developers have that issue.

                            I wasn't, now I am, then I won't be anymore.

                            1 Reply Last reply
                            0
                            • B BobJanova

                              That

                              if(something)
                              return true;
                              else return false;

                              ... is far too prevalent. Its cousin,

                              if(something)
                              return a;
                              else return b;

                              ... is at least understandable as some people have an allergic reaction to even simple ternaries (I have no idea why, they are a perfectly valid part of the language and have been since C). Interesting to see someone else who likes to do

                              if(0 != ...)

                              ... as well.

                              R Offline
                              R Offline
                              Rob Grainger
                              wrote on last edited by
                              #39

                              Personally, I'm not a fan of ...

                              if (0 != ...)

                              I understand the arguments, that its less likely to cause an error if you use = rather than ==, but seriously, that doesn't occur that often (at least with reasonably competent developers), and I prefer readability to obscurity. I've never seen a mathematical formula with the constant term on the l.h.s.

                              C 1 Reply Last reply
                              0
                              • R Rajesh Anuhya

                                Today I found this code, from DAL class

                                public Boolean Execute_NoN_Query(string Sqlstring)
                                {
                                int ResultFlag = 0;
                                ResultFlag = MSSqlHelper.SqlHelper.ExecuteNonQuery(SqlServerConnection.Cn, CommandType.Text, Sqlstring);

                                          if  (ResultFlag != 0)
                                              return true;
                                          else
                                              return false;
                                  }
                                

                                My Code is ....

                                public Boolean Execute_NoN_Query(string Sqlstring)
                                {
                                return (0 != MSSqlHelper.SqlHelper.ExecuteNonQuery(SqlServerConnection.Cn, CommandType.Text, Sqlstring));
                                }

                                my Tip/Tricks[^] | "Rajesh-Puli" now "Rajesh-Anuhya"

                                W Offline
                                W Offline
                                wg_self
                                wrote on last edited by
                                #40

                                The first was written by someone who has had to debug code. The second was written by someone who believes that code always works as intended and never needs to be debugged.

                                1 Reply Last reply
                                0
                                • B BobJanova

                                  Florin Jurcovici wrote:

                                  Although I don't buy either (no ternaries and braces around single statements) - you write the code as is fit initially, and reformat/refactor as needed when you change it.

                                  Yes, exactly. And a simple

                                  return statement ? a : b

                                  ... is not too hard to read, for sure. Someone here is really passive-aggressive anti-ternary, judging by the downvote my other post got :~ Heh, that pattern is even worse.

                                  C Offline
                                  C Offline
                                  cpkilekofp
                                  wrote on last edited by
                                  #41

                                  BobJanova wrote:

                                  Someone here is really passive-aggressive anti-ternary, judging by the downvote my other post got :~

                                  Some people hate concision. Many of them, IMO, will need to look that word up :P Truly, I've seen some real abuse of ternaries, which becomes a real horror if you have to add "elseif" cases. This is why some organizations ban them completely.

                                  1 Reply Last reply
                                  0
                                  • V Vladimir Svyatski

                                    BobJanova wrote:

                                    Interesting to see someone else who likes to do

                                    if(0 != ...)

                                    ... as well.

                                    This is called Yoda condition.

                                    C Offline
                                    C Offline
                                    cpkilekofp
                                    wrote on last edited by
                                    #42

                                    VUnreal wrote:

                                    BobJanova wrote:

                                    Interesting to see someone else who likes to do

                                    if(0 != ...)

                                    ... as well.

                                    This is called Yoda condition.

                                    LMAO, I first saw this suggestion somewhere around 1991, and Yoda had nothing to do with it (it might have been Michael Abrash or Kent Porter, or some one-shot contributor to Dr. Dobbs, which had just stopped doing Software Orthodontia and Calisthenics a couple of years before).

                                    1 Reply Last reply
                                    0
                                    • R Rob Grainger

                                      Personally, I'm not a fan of ...

                                      if (0 != ...)

                                      I understand the arguments, that its less likely to cause an error if you use = rather than ==, but seriously, that doesn't occur that often (at least with reasonably competent developers), and I prefer readability to obscurity. I've never seen a mathematical formula with the constant term on the l.h.s.

                                      C Offline
                                      C Offline
                                      cpkilekofp
                                      wrote on last edited by
                                      #43

                                      Rob Grainger wrote:

                                      I understand the arguments, that its less likely to cause an error if you use = rather than ==, but seriously, that doesn't occur that often (at least with reasonably competent developers), and I prefer readability to obscurity.

                                      Uh, huh....try bouncing back and forth several times a day between Pascal and C (then) or C# and VB.NET (now) and see how "competent" you stay, good buddy (BTW, that code-reading problem you have can be solved with practice...and this isn't mathematics). At the time this technique was suggested, it was one of the most common errors in C/C++ programming, and it's still a common error in all C's descendants when the coder spent signficant school or work time working in just about any other classical imperative language framework as most of them used a single equal sign as the operator for logical equivalence. Ah, the light just went on! You haven't spent much if any time outside the C box. You should get out more.

                                      R 1 Reply Last reply
                                      0
                                      • M Mohibur Rashid

                                        Agreed with Peter, Beside this just reduce the code, but I dont see any performance improvement. also in some programming language comparison does not return only true and false but sometime it also return -1(VBA)

                                        C Offline
                                        C Offline
                                        cpkilekofp
                                        wrote on last edited by
                                        #44

                                        In VBA, -1 is True (check out the bit values sometime).

                                        1 Reply Last reply
                                        0
                                        • L Lost User

                                          Nagy Vilmos wrote:

                                          As a member for eight years, I'd presume you would know this.

                                          FTFY :)

                                          And from the clouds a mighty voice spoke:
                                          "Smile and be happy, for it could come worse!"

                                          And I smiled and was happy
                                          And it came worse.

                                          C Offline
                                          C Offline
                                          cpkilekofp
                                          wrote on last edited by
                                          #45

                                          LMAO...I've been here a member for only seven years, so now I know a secret from you eight-year-olds....I'm growing up! Serioiusly, I've never been able to figure the meaning of FTFY in context, and it didn't seem to be adding that much meaning in any case except as a pejorative, so I never bothered asking anyone.

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