[Octave-bug-tracker] [bug #42345] fprintf('''%''') throws error

[Mike Miller]

Update of bug #42345 (project octave):

                Category:                    None => Octave Function        
              Item Group:                    None => Matlab Compatibility   
                  Status:                    None => Need Info              
        Operating System:               GNU/Linux => Any                    

    _______________________________________________________

Follow-up Comment #1:

Thanks for your bug report. I think what this is showing is an intentional
Matlab incompatibility when invalid/unrecognized conversion specifiers are
given to printf/sprintf/fprintf.

When Matlab sees an invalid conversion specifier, let's say %r


sprintf('x = %r, here is the rest', 0)


I think it silently either throws away the invalid one and continues, or it
stops converting at that point and returns the string so far. I thought I saw
this come up before but I can't find anything in my mailbox at the moment.

When Octave sees an invalid conversion specifier like the above, it errors
with the error string you saw. Neither %' nor %" mean anything useful, so
Octave prints an error and returns nothing.

Is this an important compatibility that needs to be addressed or is Octave
doing the right thing enforcing correct conversion strings be passed to
printf-like functions?

    _______________________________________________________

Reply to this item at:

  <http://savannah.gnu.org/bugs/?42345>

_______________________________________________
  Message sent via/by Savannah
  http://savannah.gnu.org/