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C++ trivia

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  • Greg UtasG Greg Utas

    List the distinct uses for a colon in C++. Motivated by currently writing a function that had better take all of them into account! :-D

    Robust Services Core | Software Techniques for Lemmings | Articles
    The fox knows many things, but the hedgehog knows one big thing.

    P Offline
    P Offline
    PIEBALDconsult
    wrote on last edited by
    #3

    Isn't it just another separator? :-D

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    • Greg UtasG Greg Utas

      List the distinct uses for a colon in C++. Motivated by currently writing a function that had better take all of them into account! :-D

      Robust Services Core | Software Techniques for Lemmings | Articles
      The fox knows many things, but the hedgehog knows one big thing.

      D Offline
      D Offline
      DRHuff
      wrote on last edited by
      #4

      A colon is the hat that most Q&A questioners wear. :-D

      If you can't laugh at yourself - ask me and I will do it for you.

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      • Greg UtasG Greg Utas

        List the distinct uses for a colon in C++. Motivated by currently writing a function that had better take all of them into account! :-D

        Robust Services Core | Software Techniques for Lemmings | Articles
        The fox knows many things, but the hedgehog knows one big thing.

        D Offline
        D Offline
        den2k88
        wrote on last edited by
        #5

        It's the brits fault, they colonized even C++.

        GCS d--(d+) s-/++ a C++++ U+++ P- L+@ E-- W++ N+ o+ K- w+++ O? M-- V? PS+ PE- Y+ PGP t+ 5? X R+++ tv-- b+(+++) DI+++ D++ G e++ h--- r+++ y+++*      Weapons extension: ma- k++ F+2 X

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        • Greg UtasG Greg Utas

          List the distinct uses for a colon in C++. Motivated by currently writing a function that had better take all of them into account! :-D

          Robust Services Core | Software Techniques for Lemmings | Articles
          The fox knows many things, but the hedgehog knows one big thing.

          H Offline
          H Offline
          honey the codewitch
          wrote on last edited by
          #6

          static member access, constructor initialization list. Base class list, namespace access, ternary operator, case signifier terminator. I feel like there are more but I'm sleepy. edit: other commenters pointed out labels and bitfields Don't forget to escape strings and chars!

          Real programmers use butterflies

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          • H honey the codewitch

            static member access, constructor initialization list. Base class list, namespace access, ternary operator, case signifier terminator. I feel like there are more but I'm sleepy. edit: other commenters pointed out labels and bitfields Don't forget to escape strings and chars!

            Real programmers use butterflies

            C Offline
            C Offline
            Chris Losinger
            wrote on last edited by
            #7

            also bitfield definitions

            H 1 Reply Last reply
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            • D DRHuff

              goto the head of the class!

              If you can't laugh at yourself - ask me and I will do it for you.

              H Offline
              H Offline
              honey the codewitch
              wrote on last edited by
              #8

              i forgot labels. So now that's two things i forgot

              Real programmers use butterflies

              T 1 Reply Last reply
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              • H honey the codewitch

                static member access, constructor initialization list. Base class list, namespace access, ternary operator, case signifier terminator. I feel like there are more but I'm sleepy. edit: other commenters pointed out labels and bitfields Don't forget to escape strings and chars!

                Real programmers use butterflies

                D Offline
                D Offline
                DRHuff
                wrote on last edited by
                #9

                goto the head of the class!

                If you can't laugh at yourself - ask me and I will do it for you.

                H 1 Reply Last reply
                0
                • C Chris Losinger

                  also bitfield definitions

                  H Offline
                  H Offline
                  honey the codewitch
                  wrote on last edited by
                  #10

                  Thanks. I knew i was forgetting something!

                  Real programmers use butterflies

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                  • W W Balboos GHB

                    Just to be on the safe side, be sure to consider this is the most distinct use of the colon.[^]

                    Ravings en masse^

                    "The difference between genius and stupidity is that genius has its limits." - Albert Einstein

                    "If you are searching for perfection in others, then you seek disappointment. If you seek perfection in yourself, then you will find failure." - Balboos HaGadol Mar 2010

                    Greg UtasG Offline
                    Greg UtasG Offline
                    Greg Utas
                    wrote on last edited by
                    #11

                    Now why would I be hesitating to click on that link? :-D EDIT: Curiosity killed the cat. But it could have been worse!

                    Robust Services Core | Software Techniques for Lemmings | Articles
                    The fox knows many things, but the hedgehog knows one big thing.

                    <p><a href="https://github.com/GregUtas/robust-services-core/blob/master/README.md">Robust Services Core</a>
                    <em>The fox knows many things, but the hedgehog knows one big thing.</em></p>

                    W 1 Reply Last reply
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                    • Greg UtasG Greg Utas

                      Now why would I be hesitating to click on that link? :-D EDIT: Curiosity killed the cat. But it could have been worse!

                      Robust Services Core | Software Techniques for Lemmings | Articles
                      The fox knows many things, but the hedgehog knows one big thing.

                      W Offline
                      W Offline
                      W Balboos GHB
                      wrote on last edited by
                      #12

                      Greg Utas wrote:

                      Now why would I be hesitating to click on that link?

                      Answer I'd have given: Hesitant? Perhaps not enough roughage?

                      Ravings en masse^

                      "The difference between genius and stupidity is that genius has its limits." - Albert Einstein

                      "If you are searching for perfection in others, then you seek disappointment. If you seek perfection in yourself, then you will find failure." - Balboos HaGadol Mar 2010

                      1 Reply Last reply
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                      • W W Balboos GHB

                        Just to be on the safe side, be sure to consider this is the most distinct use of the colon.[^]

                        Ravings en masse^

                        "The difference between genius and stupidity is that genius has its limits." - Albert Einstein

                        "If you are searching for perfection in others, then you seek disappointment. If you seek perfection in yourself, then you will find failure." - Balboos HaGadol Mar 2010

                        OriginalGriffO Offline
                        OriginalGriffO Offline
                        OriginalGriff
                        wrote on last edited by
                        #13

                        I was going to say, "to write VB code because only ... " but he beat me too it ... :-D

                        "I have no idea what I did, but I'm taking full credit for it." - ThisOldTony "Common sense is so rare these days, it should be classified as a super power" - Random T-shirt AntiTwitter: @DalekDave is now a follower!

                        "I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
                        "Common sense is so rare these days, it should be classified as a super power" - Random T-shirt

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                        • H honey the codewitch

                          i forgot labels. So now that's two things i forgot

                          Real programmers use butterflies

                          T Offline
                          T Offline
                          TheGreatAndPowerfulOz
                          wrote on last edited by
                          #14

                          global scope operator, as in ::foo

                          #SupportHeForShe Government can give you nothing but what it takes from somebody else. A government big enough to give you everything you want is big enough to take everything you've got, including your freedom.-Ezra Taft Benson You must accept 1 of 2 basic premises: Either we are alone in the universe or we are not alone. Either way, the implications are staggering!-Wernher von Braun

                          H 1 Reply Last reply
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                          • T TheGreatAndPowerfulOz

                            global scope operator, as in ::foo

                            #SupportHeForShe Government can give you nothing but what it takes from somebody else. A government big enough to give you everything you want is big enough to take everything you've got, including your freedom.-Ezra Taft Benson You must accept 1 of 2 basic premises: Either we are alone in the universe or we are not alone. Either way, the implications are staggering!-Wernher von Braun

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                            H Offline
                            honey the codewitch
                            wrote on last edited by
                            #15

                            I presumed that was implied when i mentioned the namespace scope resolution operator (it's the same operator) :)

                            Real programmers use butterflies

                            H 1 Reply Last reply
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                            • H honey the codewitch

                              I presumed that was implied when i mentioned the namespace scope resolution operator (it's the same operator) :)

                              Real programmers use butterflies

                              H Offline
                              H Offline
                              Helena Munzarova
                              wrote on last edited by
                              #16

                              In a ternary oparator

                              sResult=(x<=0)?"0 or negative":"positive";

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                              • Greg UtasG Greg Utas

                                List the distinct uses for a colon in C++. Motivated by currently writing a function that had better take all of them into account! :-D

                                Robust Services Core | Software Techniques for Lemmings | Articles
                                The fox knows many things, but the hedgehog knows one big thing.

                                G Offline
                                G Offline
                                Gary Wheeler
                                wrote on last edited by
                                #17

                                To keep my gastroenterologist in BMW's? Oh wait, wrong colon; my bad.

                                Software Zen: delete this;

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                                • H honey the codewitch

                                  static member access, constructor initialization list. Base class list, namespace access, ternary operator, case signifier terminator. I feel like there are more but I'm sleepy. edit: other commenters pointed out labels and bitfields Don't forget to escape strings and chars!

                                  Real programmers use butterflies

                                  J Offline
                                  J Offline
                                  jason_s_coleman
                                  wrote on last edited by
                                  #18

                                  Range-based for loop?

                                  H 1 Reply Last reply
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                                  • H Helena Munzarova

                                    In a ternary oparator

                                    sResult=(x<=0)?"0 or negative":"positive";

                                    H Offline
                                    H Offline
                                    honey the codewitch
                                    wrote on last edited by
                                    #19

                                    i already mentioned that.

                                    Real programmers use butterflies

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                                    • J jason_s_coleman

                                      Range-based for loop?

                                      H Offline
                                      H Offline
                                      honey the codewitch
                                      wrote on last edited by
                                      #20

                                      is that a C++20 thing?

                                      Real programmers use butterflies

                                      J 1 Reply Last reply
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                                      • H honey the codewitch

                                        is that a C++20 thing?

                                        Real programmers use butterflies

                                        J Offline
                                        J Offline
                                        jason_s_coleman
                                        wrote on last edited by
                                        #21

                                        Nah, looks like C++11. e.g. for (auto it : vector) Range-based for loop (since C++11) - cppreference.com[^]

                                        H 1 Reply Last reply
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                                        • J jason_s_coleman

                                          Nah, looks like C++11. e.g. for (auto it : vector) Range-based for loop (since C++11) - cppreference.com[^]

                                          H Offline
                                          H Offline
                                          honey the codewitch
                                          wrote on last edited by
                                          #22

                                          huh. I've never actually used that..

                                          Real programmers use butterflies

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