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how to create an enumeration class of strings ??

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Owen Zhang
Owen Zhang 2018-12-6
回答： Brad Carman 2020-3-12
Hi,
I'd like to create some enumeration classes to replace the hard-coded string values. But I met the problem occurs in the attached picture.
It's OK to derive from int , but fails to derive from char or string.
Anyone has some idea ? thank you in advance.
(I need the string values , to guarantee the code transition.)

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采纳的回答

Owen Zhang
Owen Zhang 2018-12-7
i used the following approaches of using class constants.
and to replace hardcoded from:
if strcmp(somevar, 'PDOS')
to
if strcmp(somevar, LossModels.PDOS)
Untitled.png
but still , it's curious why enumeration class of strings is not supported in matlab.

更多回答（1 个）

Brad Carman
Brad Carman 2020-3-12
It's also possible to so simply convert the enumeration name to a char
classdef SolverType
enumeration
NE_BACKWARD_EULER_ADVANCER
NE_PARTITIONING_ADVANCER
end
end
Then to get char:
char(SolverType.NE_BACKWARD_EULER_ADVANCER)
Which gives
ans =
'NE_BACKWARD_EULER_ADVANCER'

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