QSORT(3F)                            BSD                             QSORT(3F)



NAME
     qsort - quick sort

SYNOPSIS
     subroutine qsort (array, len, isize, compar)
     external compar
     integer*2 compar

DESCRIPTION
     One dimensional array contains the elements to be sorted.  len is the
     number of elements in the array.  isize is the size of an element,
     typically

          ⊕  4 for integer and real
          ⊕  8 for double precision or complex
          ⊕  16 for double complex
          ⊕  (length of character object) for character arrays

     compar is the name of a user-supplied integer*2 function that will
     determine the sorting order.  This function will be called with two
     arguments that will be elements of array. The function must return

          ⊕  negative if arg 1 is considered to precede arg 2
          ⊕  zero if arg 1 is equivalent to arg 2
          ⊕  positive if arg 1 is considered to follow arg 2

     On return, the elements of array will be sorted.

FILES
     /usr/lib/libU77.a

SEE ALSO
     qsort(3)