PetscOptionsGetReal

 Gets the double precision value for a particular option in the database.

Synopsis

#include "petsc.h"   
PetscErrorCode  PetscOptionsGetReal(const char pre[],const char name[],PetscReal *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, PETSC_FALSE if not found

C++ variants

  PetscOptionsGetReal(const char b[],PetscReal *i,PetscTruth *f)->PetscOptionsGetReal(PETSC_NULL,b,i,f)

See Also

PetscOptionsGetInt(), PetscOptionsHasName(),
PetscOptionsGetString(), PetscOptionsGetIntArray(), PetscOptionsGetRealArray(),PetscOptionsTruth(), PetscOptionsName(), PetscOptionsBegin(), PetscOptionsEnd(), PetscOptionsHead(), PetscOptionsStringArray(),PetscOptionsRealArray(), PetscOptionsScalar(), PetscOptionsTruthGroupBegin(), PetscOptionsTruthGroup(), PetscOptionsTruthGroupEnd(), PetscOptionsList(), 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/ksp/ksp/examples/tutorials/ex11.c.html
src/ksp/ksp/examples/tutorials/ex11f.F.html
src/snes/examples/tutorials/ex3.c.html
src/snes/examples/tutorials/ex5.c.html
src/snes/examples/tutorials/ex5s.c.html
src/snes/examples/tutorials/ex14.c.html
src/snes/examples/tutorials/ex18.c.html
src/snes/examples/tutorials/ex19.c.html
src/snes/examples/tutorials/ex20.c.html
src/snes/examples/tutorials/ex26.c.html
src/snes/examples/tutorials/ex27.c.html