petsc-3.7.5 2017-01-01
PetscOptionsGetBool
Gets the Logical (true or false) value for a particular option in the database.
Synopsis
#include "petscsys.h"
PetscErrorCode PetscOptionsGetBool(PetscOptions options,const char pre[],const char name[],PetscBool *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 Parameter
Notes
TRUE, true, YES, yes, nostring, and 1 all translate to PETSC_TRUE
FALSE, false, NO, no, and 0 all translate to PETSC_FALSE
If the user does not supply the option (as either true or false) ivalue is NOT changed. Thus
you NEED TO ALWAYS initialize the ivalue.
See Also
PetscOptionsGetReal(), PetscOptionsHasName(), PetscOptionsGetString(),
PetscOptionsGetIntArray(), PetscOptionsGetRealArray(), PetscOptionsGetInt(), PetscOptionsBool(),
PetscOptionsName(), PetscOptionsBegin(), PetscOptionsEnd(), PetscOptionsHead(),
PetscOptionsStringArray(),PetscOptionsRealArray(), PetscOptionsScalar(),
PetscOptionsBoolGroupBegin(), PetscOptionsBoolGroup(), PetscOptionsBoolGroupEnd(),
PetscOptionsFList(), PetscOptionsEList()
Level:beginner
Location:src/sys/objects/options.c
Index of all Sys routines
Table of Contents for all manual pages
Index of all manual pages
Examples
src/vec/vec/examples/tutorials/ex10.c.html
src/dm/examples/tutorials/ex1.c.html
src/dm/examples/tutorials/ex2.c.html
src/dm/examples/tutorials/ex5.c.html
src/dm/examples/tutorials/ex12.c.html
src/dm/examples/tutorials/ex15.c.html
src/ksp/ksp/examples/tutorials/ex1.c.html
src/ksp/ksp/examples/tutorials/ex2.c.html
src/ksp/ksp/examples/tutorials/ex4.c.html
src/ksp/ksp/examples/tutorials/ex5.c.html
src/ksp/ksp/examples/tutorials/ex6.c.html