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  4. how to convert a integer from hex to decimal

how to convert a integer from hex to decimal

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  • X Offline
    X Offline
    xiaohe521
    wrote on last edited by
    #1

    as subject thx I love Programming

    C T M E 4 Replies Last reply
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    • X xiaohe521

      as subject thx I love Programming

      T Offline
      T Offline
      toxcct
      wrote on last edited by
      #2

      this is done automatically...

      int i = 0x57;
      ASSERT(i == 87);


      TOXCCT >>> GEII power
      [toxcct][VisualCalc]

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      • X xiaohe521

        as subject thx I love Programming

        C Offline
        C Offline
        Cedric Moonen
        wrote on last edited by
        #3

        An integer is neither an hex or a decimal. It's an integer and that's it ! Now, it's representation (so you will print it on the screen, in a file, ...) can change from hew to decimal. But then, it's not converting an integer but converting a string.

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        • X xiaohe521

          as subject thx I love Programming

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          Marc Soleda
          wrote on last edited by
          #4

          hex, dec, oct are just ways to represent the same integer... ... she said you are the perfect stranger she said baby let's keep it like this... Tunnel of Love, Dire Straits.

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          • C Cedric Moonen

            An integer is neither an hex or a decimal. It's an integer and that's it ! Now, it's representation (so you will print it on the screen, in a file, ...) can change from hew to decimal. But then, it's not converting an integer but converting a string.

            X Offline
            X Offline
            xiaohe521
            wrote on last edited by
            #5

            yes, the diffrent is the string's represent format, i know how to represent a integer to diffrent format string as char *_itoa( int value, char *string, int radix ); but int atoi( const char *string ); the function has only one param, no format param must i write a function to do this? I love Programming

            T C M N M 5 Replies Last reply
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            • X xiaohe521

              yes, the diffrent is the string's represent format, i know how to represent a integer to diffrent format string as char *_itoa( int value, char *string, int radix ); but int atoi( const char *string ); the function has only one param, no format param must i write a function to do this? I love Programming

              T Offline
              T Offline
              toxcct
              wrote on last edited by
              #6

              an integer is an integer !!!! it is stored as a serie of bits in memory, wether you stored an hexa value, an octal one, or a decimal one...

              int i = 0x05;
              //i contains 00000000 00000000 00000000 00000101


              int i = \005;
              //i contains 00000000 00000000 00000000 00000101


              int i = 5;
              //i contains 00000000 00000000 00000000 00000101


              TOXCCT >>> GEII power
              [toxcct][VisualCalc]

              1 Reply Last reply
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              • X xiaohe521

                yes, the diffrent is the string's represent format, i know how to represent a integer to diffrent format string as char *_itoa( int value, char *string, int radix ); but int atoi( const char *string ); the function has only one param, no format param must i write a function to do this? I love Programming

                C Offline
                C Offline
                Cedric Moonen
                wrote on last edited by
                #7

                Take a look at the sprintf function instead. It will do what you are looking for (and even much more ;) ). Hexa: sprintf(Buffer,"%x",Number); Decimal: sprintf(Buffer,"%d",Number);

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                • X xiaohe521

                  yes, the diffrent is the string's represent format, i know how to represent a integer to diffrent format string as char *_itoa( int value, char *string, int radix ); but int atoi( const char *string ); the function has only one param, no format param must i write a function to do this? I love Programming

                  M Offline
                  M Offline
                  Marc Soleda
                  wrote on last edited by
                  #8

                  An integer is an integer and it doesn't matter how you represent it. If you are trying to print it in different representations you may take a look to print flags[^]. Marc Soleda. ... she said you are the perfect stranger she said baby let's keep it like this... Tunnel of Love, Dire Straits.

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                  • X xiaohe521

                    as subject thx I love Programming

                    E Offline
                    E Offline
                    Eytukan
                    wrote on last edited by
                    #9

                    How do u convert a Number to an Integer..?:-D V

                    T 1 Reply Last reply
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                    • X xiaohe521

                      yes, the diffrent is the string's represent format, i know how to represent a integer to diffrent format string as char *_itoa( int value, char *string, int radix ); but int atoi( const char *string ); the function has only one param, no format param must i write a function to do this? I love Programming

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                      N Offline
                      Nishad S
                      wrote on last edited by
                      #10

                      xiaohe521 wrote: int atoi( const char *string ); the function has only one param, no format param must i write a function to do this? I think you are trying to convert a hexadecimal number (which is a string) to an integer. Am I right?

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                      • E Eytukan

                        How do u convert a Number to an Integer..?:-D V

                        T Offline
                        T Offline
                        toxcct
                        wrote on last edited by
                        #11

                        ah... there's now azt least one interresting post on that thread... :-D:laugh: :rose:


                        TOXCCT >>> GEII power
                        [toxcct][VisualCalc]

                        1 Reply Last reply
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                        • X xiaohe521

                          yes, the diffrent is the string's represent format, i know how to represent a integer to diffrent format string as char *_itoa( int value, char *string, int radix ); but int atoi( const char *string ); the function has only one param, no format param must i write a function to do this? I love Programming

                          M Offline
                          M Offline
                          markkuk
                          wrote on last edited by
                          #12

                          Use the strtol() function to convert numeric strings in various bases into integers.

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