How do I work with timeseries data in C?

Hello,

I have a sine signal in Simulink (it's a timeseries variable) and I want to determinate the min and max values using a C caller block. My problem it's how to take just the value ( the date) of the timeseries, to work with them?

In Matlab script it's working like a struct like: value = sine.data, but in C I have error.

Here is the implementation in C:

And the error:

Any ideea and or recommendation is appreciated.

Thank you.