C struct import problem with Matlab/Simulink R2021b if struct contains an array with one element
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if a struct definition contains a member array with one element Matlab function Simulink.importExternalCTypes() issues a warning
'Warning: Unable to import 'MyStruct' from file 'D:\MathworksExample\structdef.h'. It is empty or
has a field whose type is unsupported in Simulink.'
This works in R2018b without any problem.
In R2021b dimension of array must be greater than one to successfully import struct definition.
example struct
// file structdef.h
#include <stdint.h>
typedef struct
{
int32_t itemId;
uint8_t check[1]; // fails with one element, ok with dimension 2 or more
} MyStruct;
import with Simulink.importExternalCTypes('structdef.h') gives a warning;
Warning: Unable to import 'MyStruct' from file 'D:\MathworksExample\structdef.h'. It is empty or has a field
whose type is unsupported in Simulink.
2 个评论
JulianSTABL
2022-3-23
I have the exact same problem, did you find out in the meanwhile how to workaround this?
Thomas Klingelhöfer
2022-3-23
采纳的回答
Sanju
2024-2-15
0 个投票
I have tried to import the file with single & Multi Dimensions in MATLAB R2023b, and it’s working fine.
Also, in MATLAB R2022a and earlier versions, the use of N-dimensional arrays within structs was not supported, hence the warning is an anticipated behaviour. Starting from R2022b, importing multidimensional arrays is supported.
So, it is recommended to upgrade to MATLAB R2022b or a newer release to utilize the latest functionality.
Please refer to the below documentation links if required,
Hope this Helps!
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