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[Octave-bug-tracker] [bug #29986] Minor: calling plot with no arguments
From: |
Rik |
Subject: |
[Octave-bug-tracker] [bug #29986] Minor: calling plot with no arguments results in errors (instead of just usage) |
Date: |
Fri, 11 Jun 2010 22:03:56 +0000 |
User-agent: |
Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.9) Gecko/20100402 Ubuntu/9.10 (karmic) Firefox/3.5.9 |
Follow-up Comment #2, bug #29986 (project octave):
In general, functions should thoroughly check their input arguments before
proceeding with calculation in order to avoid Garbage In, Garbage Out.
Octave over time has grown to have 830 m-files and, unfortunately, not all of
them have been coded with input validation checks.
The case of plot.m is a little more obscure so I will put it aside for the
moment.
For quadl, however, the fix is very simple. Take a look at legendre.m from
the Mercurial repository where I recently added better input validation.
These lines should be at the beginning of every m-file.
if (nargin < 2 || nargin > 3)
print_usage ();
endif
where the exact number of acceptable arguments varies between functions. I
might slowly work through the m-files some time adding validation, but if you
have patches for any favorites like quadl I can apply them now. Just attach
to this bug report.
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- [Octave-bug-tracker] [bug #29986] Minor: calling plot with no arguments results in errors (instead of just usage), Jake, 2010/06/03
- [Octave-bug-tracker] [bug #29986] Minor: calling plot with no arguments results in errors (instead of just usage),
Rik <=
- [Octave-bug-tracker] [bug #29986] Minor: calling plot with no arguments results in errors (instead of just usage), David Bateman, 2010/06/23
- [Octave-bug-tracker] [bug #29986] Minor: calling plot with no arguments results in errors (instead of just usage), John W. Eaton, 2010/06/23
- [Octave-bug-tracker] [bug #29986] Minor: calling plot with no arguments results in errors (instead of just usage), David Bateman, 2010/06/23
- [Octave-bug-tracker] [bug #29986] Minor: calling plot with no arguments results in errors (instead of just usage), Rik, 2010/06/24
- [Octave-bug-tracker] [bug #29986] Minor: calling plot with no arguments results in errors (instead of just usage), Søren Hauberg, 2010/06/24
- [Octave-bug-tracker] [bug #29986] Minor: calling plot with no arguments results in errors (instead of just usage), John W. Eaton, 2010/06/24