Enums of smaller data types

Question

John F 2019-11-21

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/492465-enums-of-smaller-data-types

回答： Walter Roberson 2019-11-21

Hi everyone,

I am wondering if there's a way to create enumerated types of smaller sizes. When generating code with Simulink models that use enums, "IntEnumType" gets cast as a machine-sized Int, in my case a 4-byte value. It takes up a lot of memory especially when you consider most of the enums only have a small number of values. Is there an easy way to avoid this?

Thanks!

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Answer 1

Walter Roberson 2019-11-21

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链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/492465-enums-of-smaller-data-types#answer_402690

https://www.mathworks.com/help/simulink/ug/using-enumerated-data-in-simulink-models.html

Define the class as a subclass of Simulink.IntEnumType. You can also base an enumerated type on one of these built-in integer data types: int8, uint8, int16, uint16, and int32.