+U77 FORTRAN compile-line option required

NAME

qsort − quick sort

SYNOPSIS

subroutine qsort (array, len, isize, compar)
INTEGER*4 len, isize
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 2 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)

Hewlett-Packard Company  —  HP-UX Release 9.0: June 1992