MatShellGetContext#
Returns the user-provided context associated with a MATSHELL shell matrix.
Synopsis#
#include "petscmat.h"
PetscErrorCode MatShellGetContext(Mat mat, void *ctx)
Not Collective
Input Parameter#
mat - the matrix, should have been created with
MatCreateShell()
Output Parameter#
ctx - the user provided context
Fortran Notes#
You must write a Fortran interface definition for this function that tells Fortran the Fortran derived data type that you are passing in as the ctx argument.
See Also#
Matrices, Mat, MATSHELL, MatCreateShell(), MatShellSetOperation(), MatShellSetContext()
Level#
advanced
Location#
Examples#
src/tao/unconstrained/tutorials/eptorsion1.c
src/tao/pde_constrained/tutorials/hyperbolic.c
src/mat/tutorials/ex6f.F90
src/snes/tutorials/ex36.c
src/tao/pde_constrained/tutorials/parabolic.c
src/tao/unconstrained/tutorials/eptorsion3.c
src/ts/tutorials/ex20opt_ic.c
src/tao/pde_constrained/tutorials/elliptic.c
src/tao/bound/tutorials/plate2.c
src/mat/tutorials/ex20f.F90
Implementations#
MatShellGetContext_Shell() in src/mat/impls/shell/shell.c
Index of all Mat routines
Table of Contents for all manual pages
Index of all manual pages