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     STRREV(DOS)               UNIX System V               STRREV(DOS)



     Name
          strrev - Reverses the order of characters in a string.

     Syntax
          #include <string.h>

          char *strrev(string)
          char *string;

     Description
          The strrev function reverses the order of the characters in
          string. The terminating null character (\0) remains in
          place.

     Return Value
          The strrev function returns a pointer to the altered string.
          There is no error return.

     See Also
          strcpy(DOS), strset(DOS)

     Example
          #include <string.h>
          #include <stdio.h>

          char string[100];
          int result;

          main()
           {
                  printf("Input a string and I will tell");
                  printf("you if it is a palindrome: ");
                  gets(string);

                  /* Reverse string and compare: */
                  result = strcmp(string,strrev(strdup(string)));

                  if (result == 0)
                          printf("The string \"%s\" is a palindrome\n\n",
                                 string);
                  else
                          printf("The string \"s\" is not a palindrome\n\n",
                                 string);
           }

          This program checks an input string to see whether it is a
          palindrome: that is, whether it reads the same forward and
          backward. The program checks this by comparing a string
          named string with a copy of string that has been reversed
          using strrev.





                                              (printed 7/6/89)