PetscOptionsGetInt#

Gets the integer value for a particular option in the database.

Synopsis#

#include "petscsys.h"   
PetscErrorCode PetscOptionsGetInt(PetscOptions options, const char pre[], const char name[], PetscInt *ivalue, PetscBool *set)

Not Collective

Input Parameters#

  • options - options database, use NULL for default global database

  • pre - the string to prepend to the name or NULL

  • name - the option one is seeking

Output Parameters#

Notes#

If the user does not supply the option ivalue is NOT changed. Thus you should ALWAYS initialize the ivalue if you access it without first checking that the set flag is true.

Accepts the special values determine, decide and unlimited.

Accepts the deprecated value default.

See Also#

PetscOptionsGetReal(), PetscOptionsHasName(), PetscOptionsGetString(), PetscOptionsGetIntArray(), PetscOptionsGetRealArray(), PetscOptionsBool() PetscOptionsInt(), PetscOptionsString(), PetscOptionsReal(), PetscOptionsName(), PetscOptionsBegin(), PetscOptionsEnd(), PetscOptionsHeadBegin(), PetscOptionsStringArray(), PetscOptionsRealArray(), PetscOptionsScalar(), PetscOptionsBoolGroupBegin(), PetscOptionsBoolGroup(), PetscOptionsBoolGroupEnd(), PetscOptionsFList(), PetscOptionsEList()

Level#

beginner

Location#

src/sys/objects/options.c

Examples#

src/tao/unconstrained/tutorials/rosenbrock1.c
src/tao/unconstrained/tutorials/burgers_spectral.c
src/tao/unconstrained/tutorials/minsurf2.c
src/tao/bound/tutorials/plate2.c
src/tao/unconstrained/tutorials/rosenbrock1f.F90
src/tao/complementarity/tutorials/minsurf1.c
src/tao/bound/tutorials/jbearing2.c
src/tao/unconstrained/tutorials/rosenbrock3.c
src/tao/complementarity/tutorials/blackscholes.c
src/tao/bound/tutorials/plate2f.F90


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