MatGetOperation#
Gets a matrix operation for any matrix type.
Synopsis#
#include "petscmat.h"
PetscErrorCode MatGetOperation(Mat mat, MatOperation op, void (**f)(void))
Not Collective
Input Parameters#
mat - the matrix
op - the name of the operation
Output Parameter#
f - the function that provides the operation
Usage#
PetscErrorCode (*usermult)(Mat, Vec, Vec);
MatGetOperation(A, MATOP_MULT, (void (**)(void))&usermult);
Notes#
See the file include/petscmat.h for a complete list of matrix
operations, which all have the form MATOP_MatMult() -> MATOP_MULT).
This routine is distinct from MatShellGetOperation() in that it can be called on any matrix type.
See Also#
Matrices, Mat, MatSetOperation(), MatCreateShell(), MatShellGetContext(), MatShellGetOperation()
Level#
developer
Location#
Examples#
src/ksp/ksp/tutorials/ex29.c
src/ksp/ksp/tutorials/ex34.c
Index of all Mat routines
Table of Contents for all manual pages
Index of all manual pages