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- DLASRT - the numbers in D in increasing order (if ID = 'I') or in
- decreasing order (if ID = 'D' )
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- SSSSYYYYNNNNOOOOPPPPSSSSIIIISSSS
- SUBROUTINE DLASRT( ID, N, D, INFO )
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- CHARACTER ID
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- INTEGER INFO, N
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- DOUBLE PRECISION D( * )
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- PPPPUUUURRRRPPPPOOOOSSSSEEEE
- Sort the numbers in D in increasing order (if ID = 'I') or in decreasing
- order (if ID = 'D' ).
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- Use Quick Sort, reverting to Insertion sort on arrays of
- size <= 20. Dimension of STACK limits N to about 2**32.
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- AAAARRRRGGGGUUUUMMMMEEEENNNNTTTTSSSS
- ID (input) CHARACTER*1
- = 'I': sort D in increasing order;
- = 'D': sort D in decreasing order.
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- N (input) INTEGER
- The length of the array D.
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- D (input/output) 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.
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- INFO (output) INTEGER
- = 0: successful exit
- < 0: if INFO = -i, the i-th argument had an illegal value
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- PPPPaaaaggggeeee 1111
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