PETSc version 3.17.0
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# PetscDSCopyBoundary

Copy all boundary condition objects to the new problem

### Synopsis

    #include "petscds.h"
    PetscErrorCode PetscDSCopyBoundary(PetscDS ds, PetscInt numFields, const PetscInt fields[], PetscDS newds)

Not collective

### Input Parameters

| ds | - The source PetscDS object
| numFields | - The number of selected fields, or PETSC_DEFAULT for all fields
| fields | - The selected fields, or NULL for all fields

### Output Parameter

| newds | - The target PetscDS, now with a copy of the boundary conditions

### See Also

PetscDSCopyEquations(), PetscDSSetResidual(), PetscDSSetJacobian(), PetscDSSetRiemannSolver(), PetscDSSetBdResidual(), PetscDSSetBdJacobian(), PetscDSCreate()

### Level

intermediate

### Location

src/dm/dt/interface/dtds.c
Index of all DT routines
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Index of all manual pages