swab(3C)                   DG/UX 4.30                    swab(3C)



     NAME
          swab - Swap the bytes within each pair of bytes in a string.

     SYNOPSIS
          char *string1, *string2;
          int num;
          ...
          swab(string1, string2, num);

          where  string1 contains the bytes to be swapped
                 string2 contains the result of swapping
                 num is the number of bytes to swap

     DESCRIPTION
          Use the swab function to swap the bytes within each pair of
          bytes in a string.  The number of bytes to swap, num, should
          be even.  If, however, the number is odd, the value (num -
          1) is used instead.

     RETURNS
          The swab function does not return a value.

     SEE ALSO
          strlen(3c), strcpy(3c).

     EXAMPLE
          /* Program test for the swab() function */

          #include <stdio.h>
          #define MAX   80

          char   string[MAX], *swab();
          int    length, strlen();
          int    i = 1;

          main(argc, argv)
          int    argc;
          char  *argv[];
          {
              while (i < argc) {
                  length = strlen(argv[i]);
                  swab(argv[i], string, length);
                  printf("'%s' ==> '%.@s'\n",
                         argv[i], length, string);
                  i++;
              }
          }

          A call to the program test with

          x test Swap these bytes.




     Licensed material--property of copyright holder(s)         Page 1

     swab(3C)                   DG/UX 4.30                    swab(3C)



          generates the output

          'Swap' ==> 'wSpa'
          'these' ==> 'htsee'
          'bytes.' ==> 'ybet.s'


















































     Licensed material--property of copyright holder(s)         Page 2