PetscOptionsGetScalar
Gets the scalar value for a particular option in the database.
Synopsis
#include "petsc.h"
int PetscOptionsGetScalar(const char pre[],const char name[],PetscScalar *dvalue,PetscTruth *flg)
Not Collective
Input Parameters
| pre | - string to prepend to each name or PETSC_NULL
|
| name | - the option one is seeking
|
Output Parameter
| dvalue | - the double value to return
|
| flg | - PETSC_TRUE if found, else PETSC_FALSE
|
Usage
A complex number 2+3i can be specified as 2,3 at the command line.
or a number 2.0e-10 - 3.3e-20 i can be specified as 2.0e-10,3.3e-20
See Also
PetscOptionsGetInt(), PetscOptionsHasName(),
PetscOptionsGetString(), PetscOptionsGetIntArray(), PetscOptionsGetRealArray(), PetscOptionsLogical(),
PetscOptionsName(), PetscOptionsBegin(), PetscOptionsEnd(), PetscOptionsHead(),
PetscOptionsStringArray(),PetscOptionsRealArray(), PetscOptionsScalar(),
PetscOptionsLogicalGroupBegin(), PetscOptionsLogicalGroup(), PetscOptionsLogicalGroupEnd(),
PetscOptionsList(), PetscOptionsEList()
Level:beginner
Location:src/sys/src/objects/options.c
Index of all Sys routines
Table of Contents for all manual pages
Index of all manual pages
Examples
src/sles/examples/tutorials/ex4.c.html
src/sles/examples/tutorials/ex25.c.html
src/snes/examples/tutorials/ex29.c.html