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QSORT(3)							      QSORT(3)

NAME
       qsort - quicker sort

SYNOPSIS
       #include <stdlib.h>

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

DESCRIPTION
       Qsort is an implementation of C.A.R. Hoare's ``quicksort'' algorithm.

       The  qsort function sorts an array of nmemb objects, the initial member
       of which is pointed to by base.	The size of each object	 is  specified
       by size.

       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  respec‐
       tively less than, equal to, or greater than the second.

       If  two	members	 compare  as equal, their order in the sorted array is
       undefined.

SEE ALSO
       sort(1)

STANDARDS
       Qsort conforms to ANSI X3.159-1989 (``ANSI C'').

BUGS
       The comparison routine may not itself call qsort(3).

4th Berkeley Distribution	 May 16, 1990			      QSORT(3)

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