plan9 man page for qsort

QSORT(2)							System Calls Manual							  QSORT(2)

NAME
       qsort - quicker sort

SYNOPSIS
       #include <u.h>
       #include <libc.h>

       void qsort(void *base, long nel, long width,
		int (*compar)(void*, void*))

DESCRIPTION
       Qsort  (quicker	sort) sorts an array into nondecreasing order.	The first argument is a pointer to the base of the data; the second is the
       number of elements; the third is the width of an element in bytes; the last is the name of a comparison routine to be called with  pointers
       to  elements  being compared.  The routine must return an integer less than, equal to, or greater than 0 according as the first argument is
       to be considered less than, equal to, or greater than the second.

SOURCE
       /sys/src/libc/port/qsort.c

SEE ALSO
       sort(1)

																	  QSORT(2)