Effacer les filtres
Effacer les filtres

Do you think this behaviour of built-in functions error() and warning() is odd

1 vue (au cours des 30 derniers jours)
Julian
Julian le 25 Jan 2012
I find that warning('message', a1, a2,...) treats args a1 etc differently to warning('message_id', 'message', a1, a2, ..., an). The same is true for error but a surprise to me. I discovered this when I tried to show the size of an array in the warning by using size(X) as one of the arguments. What do you reckon to this behaviour, which I found after MLINT nagged me to add a message identifier but coughed when I did? Example shown below:
>> warning('%d %d', [1 2])
Warning: 1 2
>> warning('msg:id', '%d %d', [1 2])
??? Error using ==> warning
Formatted arguments cannot be non-scalar numeric matrices.

Réponse acceptée

Sean
Sean le 25 Jan 2012
It means exactly what it says:
warning('msg:id', '%d %d', 1, 2)
Use 1,2 as scalars.
I do see how this differs from sprintf() where the former was acceptable.
sprintf('%d %d', [1,2])
  4 commentaires
Sean
Sean le 25 Jan 2012
I've submitted an enhancement request regarding this behavior.
Julian
Julian le 26 Jan 2012
I did not appreciate you were with TMW; thanks for putting in an an enhancement request - so I accept your answer. I would add that making enhancement requests more visible and open to comment would be very welcome - either via MATLAB Central or through the private support web-site. Quite a lot of discussion in Answers in this domain - and I hate to submit enhancement requests.

Connectez-vous pour commenter.

Plus de réponses (0)

Catégories

En savoir plus sur Startup and Shutdown dans Help Center et File Exchange

Produits

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by