DSGetArrayReal#

Returns a real pointer to the internal array of \(T\) or \(D\). You MUST call DSRestoreArrayReal() when you no longer need to access the array.

Synopsis#

#include "slepcds.h" 
PetscErrorCode DSGetArrayReal(DS ds,DSMatType m,PetscReal *a[])

Not Collective

Input Parameters#

  • ds - the direct solver context

  • m - the requested matrix

Output Parameter#

  • a - pointer to the values

Note#

This function can be used only for DS_MAT_T and DS_MAT_D. These matrices always store real values, even in complex scalars, that is why the returned pointer is PetscReal.

See Also#

DS: Direct Solver (or Dense System), DSRestoreArrayReal(), DSGetArray()

Level#

advanced

Location#

src/sys/classes/ds/interface/dsops.c

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