Re: [petsc-dev] setting viewer format from options

[Lawrence Mitchell via petsc-dev]

> On 16 Jan 2019, at 13:21, Matthew Knepley via petsc-dev 
> <petsc-dev@mcs.anl.gov> wrote:
> 
> I think you just Push and do not Pop. Do we check for a non-empty stack? We 
> silently ignore too many Pops.
If you don't pop, at least in the past, you would get an error. 

Lawrence