# PetscOptionsGetEnum

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

### Synopsis

    #include "petsc.h"
    PetscErrorCode PETSC_DLLEXPORT PetscOptionsGetEnum(const char pre[],const char opt[],const char **list,PetscEnum *value,PetscTruth *set)

Not Collective

### Input Parameters

| pre | - option prefix or PETSC_NULL
| opt | - option name
| list | - array containing the list of choices, followed by the enum name, followed by the enum prefix, followed by a null
| defaultv | - the default (current) value

### Output Parameter

| value | - the value to return
| flg | - PETSC_TRUE if found, else PETSC_FALSE

Notes: Must be between a PetscOptionsBegin() and a PetscOptionsEnd()

list is usually something like PCASMTypes or some other predefined list of enum names

### See Also

PetscOptionsGetReal(), PetscOptionsHasName(), PetscOptionsGetString(), PetscOptionsGetInt(),
PetscOptionsGetIntArray(), PetscOptionsGetRealArray(), PetscOptionsTruth() PetscOptionsInt(), PetscOptionsString(), PetscOptionsReal(), PetscOptionsTruth(), PetscOptionsName(), PetscOptionsBegin(), PetscOptionsEnd(), PetscOptionsHead(), PetscOptionsStringArray(),PetscOptionsRealArray(), PetscOptionsScalar(), PetscOptionsTruthGroupBegin(), PetscOptionsTruthGroup(), PetscOptionsTruthGroupEnd(), PetscOptionsList(), PetscOptionsEList(), PetscOptionsGetEList(), PetscOptionsEnum()

Level:beginner
Location:src/sys/src/objects/options.c
Index of all Sys routines
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