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 databasepre - the string to prepend to the name or
NULL
name - the option one is seeking
Output Parameters#
ivalue - the integer value to return
set -
PETSC_TRUE
if found, elsePETSC_FALSE
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.
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#
Examples#
src/dm/tutorials/ex5.c
src/dm/impls/stag/tutorials/ex4.c
src/dm/tutorials/ex3.c
src/dm/impls/stag/tutorials/ex6.c
src/dm/tutorials/ex20.c
src/dm/tutorials/ex26.c
src/dm/tutorials/ex14.c
src/dm/tutorials/swarm_ex1.c
src/dm/impls/swarm/tutorials/ex1.c
src/dm/tutorials/ex21.c
Index of all Sys routines
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