What's golang's equivalent to PHP/Ruby's unpack(“C*”, . )?












1















Been searching around, still new to golang, PHP and ruby have an unpack function that unpacks a binary into an array. I'm trying to figure out how to do the following in golang.



$test = "1023";
print_r(unpack("C*", $test)); // [1,0,2,3]


Or



s = "1023"
arr = s.unpack("C*")
p(arr) # [1,0,2,3]


What's the best approach to doing this using golang?










share|improve this question





























    1















    Been searching around, still new to golang, PHP and ruby have an unpack function that unpacks a binary into an array. I'm trying to figure out how to do the following in golang.



    $test = "1023";
    print_r(unpack("C*", $test)); // [1,0,2,3]


    Or



    s = "1023"
    arr = s.unpack("C*")
    p(arr) # [1,0,2,3]


    What's the best approach to doing this using golang?










    share|improve this question



























      1












      1








      1








      Been searching around, still new to golang, PHP and ruby have an unpack function that unpacks a binary into an array. I'm trying to figure out how to do the following in golang.



      $test = "1023";
      print_r(unpack("C*", $test)); // [1,0,2,3]


      Or



      s = "1023"
      arr = s.unpack("C*")
      p(arr) # [1,0,2,3]


      What's the best approach to doing this using golang?










      share|improve this question
















      Been searching around, still new to golang, PHP and ruby have an unpack function that unpacks a binary into an array. I'm trying to figure out how to do the following in golang.



      $test = "1023";
      print_r(unpack("C*", $test)); // [1,0,2,3]


      Or



      s = "1023"
      arr = s.unpack("C*")
      p(arr) # [1,0,2,3]


      What's the best approach to doing this using golang?







      go






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Nov 25 '18 at 21:08









      Peter O.

      21k95969




      21k95969










      asked Nov 25 '18 at 13:49









      extsexts

      7,46631116




      7,46631116
























          1 Answer
          1






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          oldest

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          6














          Please note first that your PHP string of "1023" is a string consisting of the 4 bytes x01,x00, x02, x03 since the "1" are interpreted as octal. See the documentation for double quoted strings for details.



          In Go the syntax 1 is not correct. As in C an octal sequence is required to have 3 digits, i.e. 01. Thus, the PHP string "1023" is in Go "01000203" (which would also work in PHP). With this in mind unpacking is easy and no special function like unpack is needed for this:



          package main
          import "fmt"
          func main() {
          s := "01000203"
          b := byte(s)
          fmt.Print(b)
          }


          Output:



          [1 0 2 3]





          share|improve this answer

























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            1 Answer
            1






            active

            oldest

            votes









            active

            oldest

            votes






            active

            oldest

            votes









            6














            Please note first that your PHP string of "1023" is a string consisting of the 4 bytes x01,x00, x02, x03 since the "1" are interpreted as octal. See the documentation for double quoted strings for details.



            In Go the syntax 1 is not correct. As in C an octal sequence is required to have 3 digits, i.e. 01. Thus, the PHP string "1023" is in Go "01000203" (which would also work in PHP). With this in mind unpacking is easy and no special function like unpack is needed for this:



            package main
            import "fmt"
            func main() {
            s := "01000203"
            b := byte(s)
            fmt.Print(b)
            }


            Output:



            [1 0 2 3]





            share|improve this answer






























              6














              Please note first that your PHP string of "1023" is a string consisting of the 4 bytes x01,x00, x02, x03 since the "1" are interpreted as octal. See the documentation for double quoted strings for details.



              In Go the syntax 1 is not correct. As in C an octal sequence is required to have 3 digits, i.e. 01. Thus, the PHP string "1023" is in Go "01000203" (which would also work in PHP). With this in mind unpacking is easy and no special function like unpack is needed for this:



              package main
              import "fmt"
              func main() {
              s := "01000203"
              b := byte(s)
              fmt.Print(b)
              }


              Output:



              [1 0 2 3]





              share|improve this answer




























                6












                6








                6







                Please note first that your PHP string of "1023" is a string consisting of the 4 bytes x01,x00, x02, x03 since the "1" are interpreted as octal. See the documentation for double quoted strings for details.



                In Go the syntax 1 is not correct. As in C an octal sequence is required to have 3 digits, i.e. 01. Thus, the PHP string "1023" is in Go "01000203" (which would also work in PHP). With this in mind unpacking is easy and no special function like unpack is needed for this:



                package main
                import "fmt"
                func main() {
                s := "01000203"
                b := byte(s)
                fmt.Print(b)
                }


                Output:



                [1 0 2 3]





                share|improve this answer















                Please note first that your PHP string of "1023" is a string consisting of the 4 bytes x01,x00, x02, x03 since the "1" are interpreted as octal. See the documentation for double quoted strings for details.



                In Go the syntax 1 is not correct. As in C an octal sequence is required to have 3 digits, i.e. 01. Thus, the PHP string "1023" is in Go "01000203" (which would also work in PHP). With this in mind unpacking is easy and no special function like unpack is needed for this:



                package main
                import "fmt"
                func main() {
                s := "01000203"
                b := byte(s)
                fmt.Print(b)
                }


                Output:



                [1 0 2 3]






                share|improve this answer














                share|improve this answer



                share|improve this answer








                edited Nov 25 '18 at 14:26

























                answered Nov 25 '18 at 14:01









                Steffen UllrichSteffen Ullrich

                62k359100




                62k359100
































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