LAPACK
3.4.2
LAPACK: Linear Algebra PACKage

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Functions/Subroutines  
subroutine  slasrt (ID, N, D, INFO) 
SLASRT sorts numbers in increasing or decreasing order. 
subroutine slasrt  (  character  ID, 
integer  N,  
real, dimension( * )  D,  
integer  INFO  
) 
SLASRT sorts numbers in increasing or decreasing order.
Download SLASRT + dependencies [TGZ] [ZIP] [TXT]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.
[in]  ID  ID is CHARACTER*1 = 'I': sort D in increasing order; = 'D': sort D in decreasing order. 
[in]  N  N is INTEGER The length of the array D. 
[in,out]  D  D is 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. 
[out]  INFO  INFO is INTEGER = 0: successful exit < 0: if INFO = i, the ith argument had an illegal value 
Definition at line 89 of file slasrt.f.