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  4. sscanf() for just one field

sscanf() for just one field

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  • D David Crow

    9ine wrote:

    sscanf(str,"%s %s %s",0,0,tmp);

    Use:

    sscanf(str, "%*s %*s %s", tmp);

    9ine wrote:

    it produces exception in this case

    As it should since you are trying to write to address 0.


    "Money talks. When my money starts to talk, I get a bill to shut it up." - Frank

    "Judge not by the eye but by the heart." - Native American Proverb

    S Offline
    S Offline
    Sebastian Schneider
    wrote on last edited by
    #7

    I did not know sscanf could do that. Wow. I am gonna remove all stringstreams from my code, right now ;)

    Cheers, Sebastian -- Contra vim mortem non est medicamen in hortem.

    T Z 9 3 Replies Last reply
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    • 9 9ine

      How to read from a string char str[] = "field1 field2 field3 ..." only one field3 string using sscanf() and one buffer for it - tmp. sscanf(str,"%s %s %s",0,0,tmp); it produces exception in this case

      9ine

      K Offline
      K Offline
      kakan
      wrote on last edited by
      #8

      Or like this. N.B. Add error handling as required! char str[] = "field1 field2 field3 ..." // only one field3 string using sscanf() and one buffer for it - tmp. char * cpLastSpace = strrchr(str, (int) ' '); // Find the last space in str if(NULL != cpLastSpace) { sscanf(cpLastSpace+1,"%s",tmp); // Or strcpy(tmp, cpLastSpace+1); }

      Alcohol. The cause of, and the solution to, all of life's problems - Homer Simpson

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      • S Sebastian Schneider

        I did not know sscanf could do that. Wow. I am gonna remove all stringstreams from my code, right now ;)

        Cheers, Sebastian -- Contra vim mortem non est medicamen in hortem.

        T Offline
        T Offline
        toxcct
        wrote on last edited by
        #9

        Sebastian Schneider wrote:

        I am gonna remove all stringstreams from my code, right now

        are you serious :~ C++ classes are much prefered than C functions dude!


        TOXCCT >>> GEII power

        [VisualCalc 3.0  updated ][Flags Beginner's Guide  new! ]

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        • D David Crow

          9ine wrote:

          sscanf(str,"%s %s %s",0,0,tmp);

          Use:

          sscanf(str, "%*s %*s %s", tmp);

          9ine wrote:

          it produces exception in this case

          As it should since you are trying to write to address 0.


          "Money talks. When my money starts to talk, I get a bill to shut it up." - Frank

          "Judge not by the eye but by the heart." - Native American Proverb

          K Offline
          K Offline
          kakan
          wrote on last edited by
          #10

          Nice. I didn't know that either.

          Alcohol. The cause of, and the solution to, all of life's problems - Homer Simpson

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          • S Sebastian Schneider

            I did not know sscanf could do that. Wow. I am gonna remove all stringstreams from my code, right now ;)

            Cheers, Sebastian -- Contra vim mortem non est medicamen in hortem.

            Z Offline
            Z Offline
            Zac Howland
            wrote on last edited by
            #11

            Sebastian Schneider wrote:

            Wow. I am gonna remove all stringstreams from my code, right now

            I do hope you were being sarcastic :-P sscanf is great when parsing typed information ... it is not very useful for trying to extract substrings.

            If you decide to become a software engineer, you are signing up to have a 1/2" piece of silicon tell you exactly how stupid you really are for 8 hours a day, 5 days a week Zac

            S 1 Reply Last reply
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            • S Sebastian Schneider

              I did not know sscanf could do that. Wow. I am gonna remove all stringstreams from my code, right now ;)

              Cheers, Sebastian -- Contra vim mortem non est medicamen in hortem.

              9 Offline
              9 Offline
              9ine
              wrote on last edited by
              #12

              yeah. david crow rulez

              9ine

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              • T toxcct

                Sebastian Schneider wrote:

                I am gonna remove all stringstreams from my code, right now

                are you serious :~ C++ classes are much prefered than C functions dude!


                TOXCCT >>> GEII power

                [VisualCalc 3.0  updated ][Flags Beginner's Guide  new! ]

                S Offline
                S Offline
                Sebastian Schneider
                wrote on last edited by
                #13

                toxcct wrote:

                are you serious

                Hrhr.

                Cheers, Sebastian -- Contra vim mortem non est medicamen in hortem.

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                • Z Zac Howland

                  Sebastian Schneider wrote:

                  Wow. I am gonna remove all stringstreams from my code, right now

                  I do hope you were being sarcastic :-P sscanf is great when parsing typed information ... it is not very useful for trying to extract substrings.

                  If you decide to become a software engineer, you are signing up to have a 1/2" piece of silicon tell you exactly how stupid you really are for 8 hours a day, 5 days a week Zac

                  S Offline
                  S Offline
                  Sebastian Schneider
                  wrote on last edited by
                  #14

                  I was. Oh, and I noticed 2 typos in your Signature:

                  Zac Howland wrote:

                  ...for 8 hours a day, 5 days a week

                  should be

                  experience tells us:

                  ...for 11 hours a day, 6 days a week

                  Cheers, Sebastian -- Contra vim mortem non est medicamen in hortem.

                  Z 1 Reply Last reply
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                  • S Sebastian Schneider

                    I was. Oh, and I noticed 2 typos in your Signature:

                    Zac Howland wrote:

                    ...for 8 hours a day, 5 days a week

                    should be

                    experience tells us:

                    ...for 11 hours a day, 6 days a week

                    Cheers, Sebastian -- Contra vim mortem non est medicamen in hortem.

                    Z Offline
                    Z Offline
                    Zac Howland
                    wrote on last edited by
                    #15

                    Just checking ... And I've thought about changing it to say "at least 8 hours ... 5 days" since my old job fit the 20 hour/7 day mold.

                    If you decide to become a software engineer, you are signing up to have a 1/2" piece of silicon tell you exactly how stupid you really are for 8 hours a day, 5 days a week Zac

                    S 1 Reply Last reply
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                    • Z Zac Howland

                      Just checking ... And I've thought about changing it to say "at least 8 hours ... 5 days" since my old job fit the 20 hour/7 day mold.

                      If you decide to become a software engineer, you are signing up to have a 1/2" piece of silicon tell you exactly how stupid you really are for 8 hours a day, 5 days a week Zac

                      S Offline
                      S Offline
                      Sebastian Schneider
                      wrote on last edited by
                      #16

                      Gotta loooooove crunch-time...

                      Cheers, Sebastian -- Contra vim mortem non est medicamen in hortem.

                      Z 1 Reply Last reply
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                      • S Sebastian Schneider

                        Gotta loooooove crunch-time...

                        Cheers, Sebastian -- Contra vim mortem non est medicamen in hortem.

                        Z Offline
                        Z Offline
                        Zac Howland
                        wrote on last edited by
                        #17

                        Oh no. That was normal operating procedure ... When crunch time came around, the managers would pressure us to spend the night in the office ... even over weekends!

                        If you decide to become a software engineer, you are signing up to have a 1/2" piece of silicon tell you exactly how stupid you really are for 8 hours a day, 5 days a week Zac

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