Why do I get 'identifier "single" is undefined' error when importing struct with 'single' elements using the 'Simulink.​importExte​rnalCTypes​' function?

4 次查看（过去 30 天）
MathWorks Support Team
回答： MathWorks Support Team 2022-9-15
I have a ".h" file where I define custom data types. In it, I define struct types with elements of 'double' type and 'single' type. Then I use the 'Simulink.importExternalCTypes' function to generate Simulink representations of my custom data types. This is successful for the structs with 'double' elements, but for the structs with 'single' elements, I receive the error message below.
Error using Simulink.importExternalCTypes
Custom code parsing failed with the messages:
exampleTypes.h: error: identifier "single" is undefined.
Why am I experiencing this error message?

请先登录，再回答此问题。

采纳的回答

MathWorks Support Team
The syntax in C for a single precision floating type number is 'float.' The C 'float' type corresponds to the Simulink 'single' base data type. Changing the element definitions from 'single' to 'float' in 'exampleTypes.h' will resolve this error message.

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Simulink Coder 的更多信息

标签

尚未输入任何标签。

产品


版本

R2021b

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by