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[Octave-bug-tracker] [bug #60141] feature request: colon method for clas
From: |
Ernst Reissner |
Subject: |
[Octave-bug-tracker] [bug #60141] feature request: colon method for classes of numbers |
Date: |
Sun, 28 Feb 2021 07:38:06 -0500 (EST) |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.182 Safari/537.36 |
URL:
<https://savannah.gnu.org/bugs/?60141>
Summary: feature request: colon method for classes of numbers
Project: GNU Octave
Submitted by: ernstreissner
Submitted on: Sun 28 Feb 2021 12:38:04 PM UTC
Category: None
Severity: 3 - Normal
Priority: 5 - Normal
Item Group: Feature Request
Status: None
Assigned to: None
Originator Name: Reissner
Originator Email:
Open/Closed: Open
Release: 6.2.0
Discussion Lock: Any
Operating System: Any
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Details:
I am developing an arithmetics replacing the internal one provided by octave,
something like interval.
To that end i define a class `pn`.
Now i want to use the colon operator with my numbers.
Strange enough, error: `colon method not defined for pn class`.
I wonder why.
Essentially the class has all the colon operator,
or the range type returned needs to work:
a means to increment by an amount (plus function)
and a comparison le function.
I wonder whether this is possible in matlab.
If so it would not be a feature request but matlab compatibility issue.
I dont know what is best: whether you provide a more generic colon function
or you provide a way to overwrite in an appropriate way.
But nowhere i found documentation on details.
even not for matlab.
For me as a java programmer it looks pretty like an Iterator
which has functions bool hasnext(.) and pn next().
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