PeOP#

indicates an argument to a PETSc function is optional and one can pass NULL instead. This is used by the Fortran API generator

Example#

   PetscErrorCode XXXX(Vec v, PeOp PetscObject obj, PeOp PetscInt *idx, PeOp PetscInt *array[])

Notes#

This is not part of the PETSc public API and should only be used in PETSc source code.

Put this in the function declaration in front of each variable that is optional

Developer Note#

Shortened form of PETSc optional

See Also#

PeNS, PeCtx, PetscInitialize()

Level#

developer

Location#

include/petsc/private/petscimpl.h

Index of all Sys routines
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Index of all manual pages