Hi,
Le 24/11/2021 à 01:42, Federico Miyara a écrit :
I'm not completely sure, but I think this is not possible since what
is passed to the function isn't a variable but the value contained in
the variable.
No. Internally, input arguments are passed as references to the true
object. There is no copy unless an input argument is modified in the
function (in that case a copy with local scope only).
The name is lost in the process.
Yes, before the first line of the function body the original object has
the name of the argument, although both names refer to the same object.
An alternative way (but I don't know if this would be acceptable for
you) is that the function had as its argument a variable name (hence,
a string), so your x would be "xNum", instead of 123. Then you could
use evstr() to get the value of the variable to proceed with the
processing.
I think that we are in the presence of an XY problem
(https://xyproblem.info/) and that Jens should explain the whole story.
S.
Regards,
Federico Miyara
On 23/11/2021 17:18, Jens Simon Strom wrote:
Hi Scilab friends,
Given a numeric variable like xNum as an input argument of a function
call, how can I produce the variable name string "xNum" within the
function?
Example:
function [name,y]=foo(x)
name=???
y=x^2
endfunction
xNum=123.
[name,y]=foo(xNum)
The result for name should be the string "xNum"
Regards
Jens
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Stéphane Mottelet
Ingénieur de recherche
EA 4297 Transformations Intégrées de la Matière Renouvelable
Département Génie des Procédés Industriels
Sorbonne Universités - Université de Technologie de Compiègne
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