Simulink 2022b "Replace data types in generated code" does not change code generation for ert_shrlib

The generated header file always contains real_T, regardless of this setting, found in the "Data Type Replacement" tab. I have tried C99 and C89/90.

I need to be using doubles. Seems like a bug?

Thanks!

[Fangjun Jiang]

Usually, "real_T" refers to "double" by default. What replacement name did you use?

[Craig]

I would like no replacement to occur. In other words, double is replaced by double!

[Fangjun Jiang]

This is available since R2023a, but not in R2022b.

Answer 1

[Fangjun Jiang]

You need to set up the replacement name.

You can choose to specify new data type names for some or all Simulink® built-in data types listed in the table. Specify the replacement name as one of the following:

• A Simulink.AliasType object.
• A Simulink.NumericType object.
• The Simulink Name built-in data type name.

An error occurs, if:

• A replacement data type specification is inconsistent with the Simulink Name data type.
• The Simulink.AliasType object has the Data scope parameter set to Exported.