how to inherit the data type of the inputs in a C Mex Sfunction

Hello everyone,

I was wondering if it's possible to write a s-function in C without specifying the data type of the input variables. I need it because I have to write a block which is able to process any types of data

thanks 4 reading

cheers

[grapevine]

maybe I found something

ssGetInputPortDataType

http://www.mathworks.nl/help/toolbox/fixpoint/ug/f8041.html

I'll let u know

Answer 1

[Titus Edelhofer]

Hi Grapevine,

yes, that's right. You will need to register the mdlSetOutputPortDataType function, see matlabroot\simulink\src\sfuntmpl_doc.c

Titus

[grapevine]

great!!! it works!

thanks 4 the help

I just modifies

static void mdlInitializeSizes(SimStruct *S)

{

......

ssSetInputPortDataType(S, 0, DYNAMICALLY_TYPED);

......

}

static void mdlSetInputPortDataType(SimStruct *S, int portIndex, DTypeId dataTypeIdInput)

{

ssSetInputPortDataType( S, portIndex, dataTypeIdInput);

}

and it works fine.

thanks a lot

[Titus Edelhofer]

perfect, I'm glad to hear. You might mark the question as answered if you like.

Titus