NAME

slasrt - the numbers in D in increasing order (if ID = ’I’) or in decreasing order (if ID = ’D’ )

SYNOPSIS

SUBROUTINE SLASRT( ID, N, D, INFO )

CHARACTER ID

INTEGER INFO, N

REAL D( ∗ )

#include <sunperf.h>

void slasrt(char id, int n, float ∗d, int ∗info) ;

PURPOSE

Sort the numbers in D in increasing order (if ID = ’I’) or in decreasing order (if ID = ’D’ ). 
 
Use Quick Sort, reverting to Insertion sort on arrays of
size <= 20. Dimension of STACK limits N to about 2∗∗32.
 

ARGUMENTS

ID (input) CHARACTER∗1
= ’I’: sort D in increasing order;
= ’D’: sort D in decreasing order.

N (input) INTEGER
The length of the array D.

D (input/output) REAL array, dimension (N)
On entry, the array to be sorted. On exit, D has been sorted into increasing order (D(1) <= ... <= D(N) ) or into decreasing order (D(1) >= ... >= D(N) ), depending on ID.

INFO (output) INTEGER
= 0:  successful exit
< 0:  if INFO = -i, the i-th argument had an illegal value

SunOS WorkShop_5.0  —  Last change: 10 Dec 1998