NAME

       qsort - sorts an array

SYNOPSIS

       #include <stdlib.h>

       void qsort(void *base, size_t nmemb, size_t size,
              int (*compar)(const void *, const void *));

DESCRIPTION

       The  qsort()  function sorts an array with nmemb elements of size size.  The base argument
       points to the start of the array.

       The contents of the array are sorted in ascending order according to a comparison function
       pointed  to  by compar, which is called with two arguments that point to the objects being
       compared.

       The comparison function must return an integer less than, equal to, or greater  than  zero
       if  the  first  argument  is considered to be respectively less than, equal to, or greater
       than the second.  If two members compare as equal, their order  in  the  sorted  array  is
       undefined.

RETURN VALUE

       The qsort() function returns no value.

CONFORMING TO

       SVID 3, POSIX, BSD 4.3, ISO 9899

SEE ALSO

       sort(1)