Is there a way to access a struct object's reference (handle) in MATLAB?
13 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
Etienne Lebard
le 10 Déc 2020
Commenté : Paul Hoffrichter
le 11 Déc 2020
Let's say I have a struct object A with some fields :
A.a=1;
I have an another struct objetc B with some fields, one of them being the value of A :
B.b=A;
My issue is that when I change fields of A, it won't affect B.b :
> A.a=2
A =
struct with fields:
a: 2
>> B.b
ans =
struct with fields:
a: 1
Is there a "built-in" way to tell MATLAB that I want B.b to be not a copy of value of A, but a reference to A, so that when I change A it reflects when I access B.b?
I mean, besides defining and using classes which inherit from handle?
0 commentaires
Réponse acceptée
Paul Hoffrichter
le 11 Déc 2020
Modifié(e) : Paul Hoffrichter
le 11 Déc 2020
This may be close to what you are looking for. Define a classA.m
classdef classA < handle
properties
a
end
methods
function obj = classA(a)
obj.a = a;
end
end
end
Run the following:
>> A = classA(1)
A =
classA with properties:
a: 1
>> A.a
ans =
1
>> B.b = A;
>> B.b
ans =
classA with properties:
a: 1
>> A.a = 2
A =
classA with properties:
a: 2
>> B.b
ans =
classA with properties:
a: 2
>> B.b.a
ans =
2
2 commentaires
Plus de réponses (0)
Voir également
Catégories
En savoir plus sur Data Type Identification dans Help Center et File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!