What is .mex file ?

2013 3 4
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When ever i simulate a model containing state Chart in it, I generally observe mex files being generated in the current folder director.
What is the use of this .mex file ?

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回答（1 个）

Walter Roberson
Walter Roberson 2013-3-4

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The .mex file is C code being generated from the Stateflow Chart; the C code is then compiled to binary code and run within MATLAB. This provides for efficient execution of the Chart.

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Ajay Pherwani
Ajay Pherwani 2013-3-4
Thanks for you answer , But Why is that only for stateflow chart we observe mex files ? , why isnt for normal simulink block we see mex file ?
Walter Roberson
Walter Roberson 2013-3-4
I do not know enough about Simulink to answer that.
My understanding had been that there might be some compilation when you use Accelerator mode.
Ajay Pherwani
Ajay Pherwani 2013-3-5
编辑：Ajay Pherwani 2013-3-5
OK , thanks for the answers :)
Sean de Wolski
Sean de Wolski 2013-3-5
@Walter: or fortran!

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