PetscOptionsGetRealArray#

Gets an array of double precision values for a particular option in the database. The values must be separated with commas with no intervening spaces.

Synopsis#

#include "petscsys.h"   
PetscErrorCode PetscOptionsGetRealArray(PetscOptions options, const char pre[], const char name[], PetscReal dvalue[], PetscInt *nmax, PetscBool *set)

Not Collective

Input Parameters#

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

  • pre - string to prepend to each name or NULL

  • name - the option one is seeking

Output Parameters#

  • dvalue - the double values to return

  • nmax - On input maximum number of values to retrieve, on output the actual number of values retrieved

  • set - PETSC_TRUE if found, else PETSC_FALSE

See Also#

PetscOptionsGetInt(), PetscOptionsHasName(), PetscOptionsGetString(), PetscOptionsGetIntArray(), PetscOptionsBool(), PetscOptionsName(), PetscOptionsBegin(), PetscOptionsEnd(), PetscOptionsHeadBegin(), PetscOptionsStringArray(), PetscOptionsRealArray(), PetscOptionsScalar(), PetscOptionsBoolGroupBegin(), PetscOptionsBoolGroup(), PetscOptionsBoolGroupEnd(), PetscOptionsFList(), PetscOptionsEList()

Level#

beginner

Location#

src/sys/objects/options.c

Examples#

src/ksp/ksp/tutorials/ex21.c
src/ksp/ksp/tutorials/ex49.c
src/ksp/ksp/tutorials/ex54f.F90
src/ts/tutorials/ex27.c
src/ts/tutorials/extchem.c

Edit on GitLab

Index of all Sys routines
Table of Contents for all manual pages
Index of all manual pages