petsc-3.13.6 2020-09-29
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MatShellGetContext

 Returns the user-provided context associated with a 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

To use this from Fortran 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

MatCreateShell(), MatShellSetOperation(), MatShellSetContext()

Level

advanced

Location

src/mat/impls/shell/shell.c

Examples

src/mat/tutorials/ex6f.F90.html
src/ts/tutorials/ex20opt_ic.c.html
src/ts/tutorials/ex50.c.html
src/ts/tutorials/ex22f_mf.F90.html
src/tao/unconstrained/tutorials/eptorsion1.c.html
src/tao/bound/tutorials/plate2.c.html
src/tao/pde_constrained/tutorials/elliptic.c.html
src/tao/pde_constrained/tutorials/parabolic.c.html
src/tao/pde_constrained/tutorials/hyperbolic.c.html

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