Sets the number of tabs that ASCII output for that object use based on the tablevel of another object. This should be called immediately after the object is created.
PetscErrorCode PetscObjectIncrementTabLevel(PetscObject obj,PetscObject oldobj,PetscInt tab)
|obj ||- any PETSc object where we are changing the tab
|oldobj ||- the object providing the tab
|tab ||- the increment that is added to the old objects tab
this is used to manage the output from options that are imbedded in other objects. For example
the KSP object inside a SNES object. By indenting each lower level further the heirarchy of objects
is very clear.
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