[changeset] - bug and fix for surfnorm()

[John W. Eaton]

On 20-Oct-2008, David Bateman wrote:

| John W. Eaton wrote:
| > On 20-Oct-2008, Ben Abbott wrote:
| >
| > | The reason I was concerned about the old state was for a special case  
| > | where oldh==h and an error occurred after "hold on". In such an event,  
| > | I thought it appropriate to restore oldh to its original hold state.
| > | 
| > | Does that make sense, or have I missed something that makes such an  
| > | event impossible?
| >
| > I think that is handled by my change because the code in the
| > undwind_protect_cleanup block is always executed.
| >
| >
| >   
| 
| I added a couple of other changesets after this, and we appear to get 
| through all of the tests with rundemos, except occasionally "quiver3" 
| appears to fail with an invalid handle.. Don't understand this one yet..

Starting a fresh Octave session and doing

  demo quiver3
  demo quiver3
  ...

seems to work fine for me.  However, starting a fresh session and
running

  demo plotyy
  demo quiver3

seems to fail each time.

jwe