Dynamic array creation in s-function builder.

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Yash
Yash 2012-5-18
Hello everyone,
I'm trying to build an s-function that can accept an array of a varying size, using the s-function builder block. As instructed in the 'Help', I made the number of rows equal to '-1' in the Data Properties -> Input Ports.
However, this is giving an error that says 'ERROR: Invalid setting for the input port dimensions' .
So is there a way to solve this problem? Or is it better to modify the generated C code and make the particular input dynamically sized?

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回答（1 个）

Kaustubha Govind
Kaustubha Govind 2012-5-21
As per the limitations of S-function Builder listed in the documentation:
Does not support the following S-function features:
* Dynamically-sized input and output signals for an S-function with multiple input and output ports
Note: S-functions with one input and one output port can have dynamically-sized signals
So if you do have multiple inputs/outputs, the error makes sense. I do think it be might be better to modify the generated S-function wrapper as you mentioned.

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