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LAPACK
3.7.0
LAPACK: Linear Algebra PACKage
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subroutine dlasrt | ( | character | ID, |
integer | N, | ||
double precision, dimension( * ) | D, | ||
integer | INFO | ||
) |
DLASRT sorts numbers in increasing or decreasing order.
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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 DOUBLE PRECISION 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 i-th argument had an illegal value |
Definition at line 90 of file dlasrt.f.