petsc-3.14.6 2021-03-30
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MatSeqAIJGetArrayF90

 Accesses a matrix array from Fortran90.

Synopsis

MatSeqAIJGetArrayF90(Mat x,{Scalar, pointer :: xx_v(:)},integer ierr)
Not collective

Input Parameter

x - matrix

Output Parameters

xx_v - the Fortran90 pointer to the array
ierr - error code

Example of Usage

      PetscScalar, pointer xx_v(:)
      ....
      call MatSeqAIJGetArrayF90(x,xx_v,ierr)
      a = xx_v(3)
      call MatSeqAIJRestoreArrayF90(x,xx_v,ierr)

See Also

MatSeqAIJRestoreArrayF90(), MatSeqAIJGetArray(), MatSeqAIJRestoreArray(), MatDenseGetArrayF90()

Level

advanced

Location

src/mat/interface/matrix.c
Index of all Mat routines
Table of Contents for all manual pages
Index of all manual pages