PetscOptionsBoundedInt

Gets an integer value greater than or equal to a given bound for a particular option in the database.

Synopsis

#include <petscoptions.h>
PetscErrorCode  PetscOptionsBoundedInt(const char opt[], const char text[], const char man[], PetscInt currentvalue, PetscInt *value, PetscBool *set, PetscInt bound)

Logically Collective on the communicator passed in PetscOptionsBegin()

Input Parameters

• opt - option name

• text - short string that describes the option

• man - manual page with additional information on option

• currentvalue - the current value; caller is responsible for setting this value correctly. Normally this is done with either

  PetscOptionsBoundedInt(..., obj->value, &obj->value, ...)

or

  value = defaultvalue
  PetscOptionsBoundedInt(..., value, &value, &set, ...);
  if (set) {

• bound - the requested value should be greater than or equal to this bound or an error is generated

Output Parameters

• value - the integer value to return

• set - PETSC_TRUE if found, else PETSC_FALSE

Notes

If the user does not supply the option at all value is NOT changed. Thus you should ALWAYS initialize value if you access it without first checking that set is PETSC_TRUE.

The currentvalue passed into this routine does not get transferred to the output value variable automatically.

Must be used between a PetscOptionsBegin() and a PetscOptionsEnd()

See Also

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

Level

beginner

Location

include/petscoptions.h

Examples

src/ts/tutorials/ex30.c
src/dm/impls/plex/tutorials/ex6.c
src/dm/tutorials/ex9.c
src/dm/impls/plex/tutorials/ex8.c
src/dm/field/tutorials/ex1.c

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