2009-09-15                          QSORT(3)
                  int(*compar)(const void *, const void *));
               puts(argv[j]);
              pointers to char", but strcmp(3) arguments are "pointers
              to char", hence the following cast plus dereference */
            exit(EXIT_FAILURE);
            fprintf(stderr, "Usage: %s <string>...\n", argv[0]);
           /* The actual arguments to this function are "pointers to
           exit(EXIT_SUCCESS);
           for (j = 1; j < argc; j++)
           if (argc < 2) {
           int j;
           qsort(&argv[1], argc - 1, sizeof(argv[1]), cmpstringp);
           return strcmp(* (char * const *) p1, * (char * const *) p2);
           }
       #include <stdio.h>
       #include <stdlib.h>
       #include <stdlib.h>
       #include <string.h>
       Another example is the following program, which sorts the strings given
       For one example of use, see the example under bsearch(3).
       Library routines suitable for use as the compar argument include alpha†      SVr4, 4.3BSD, C89, C99.
       The  qsort()  function sorts an array with nmemb elements of size size.
       The base argument points to the start of the array.
       The comparison function must return an integer less than, equal to,  or
       The contents of the array are sorted in ascending order according to  a
       The qsort() function returns no value.
       This page is part of release 3.35 of the Linux  man-pages  project.   A
       arguments that point to the objects being compared.
       be found at http://man7.org/linux/man-pages/.
       cmpstringp(const void *p1, const void *p2)
       compare as equal, their order in the sorted array is undefined.
       comparison  function  pointed  to  by  compar, which is called with two
       description  of  the project, and information about reporting bugs, can
       greater  than  zero  if  the first argument is considered to be respec†      in its command-line arguments:
       int
       main(int argc, char *argv[])
       qsort - sorts an array
       sort(1), alphasort(3), strcmp(3), versionsort(3)
       sort(3) and versionsort(3).  To compare C strings, the comparison func†      static int
       tion can call strcmp(3), as shown in the example below.
       tively less than, equal to, or greater than the second.  If two members
       void qsort(void *base, size_t nmemb, size_t size,
       {
       {
       }
       }
COLOPHON
CONFORMING TO
DESCRIPTION
EXAMPLE
NAME
NOTES
QSORT(3)                   Linux Programmer's Manual                  QSORT(3)
RETURN VALUE
SEE ALSO
SYNOPSIS
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