Accessing code for built-in functions

Question

Fikret Taygun Duvan 2022-1-20

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https://ww2.mathworks.cn/matlabcentral/answers/1632750-accessing-code-for-built-in-functions

评论： Steven Lord 2022-1-20

Hi,

I cannot use the open or edit commands to see the source code for built-in functions. When I do it I can only see the comments that are included for that function but not the actual code.

I'm trying this on functions like plot.m and fft.m

I hope somenone can give me advice.

Best,

Taygun

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Steven Lord 2022-1-20

What were you hoping to do with the source code for those built-in functions? If you were hoping to convert them to another language (specifically C or C++) some of them are supported by MATLAB Coder. fft is supported by MATLAB Coder, plot is not.

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Answer 1

Max Heimann 2022-1-20

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https://ww2.mathworks.cn/matlabcentral/answers/1632750-accessing-code-for-built-in-functions#answer_878425

编辑：Max Heimann 2022-1-20

These functions are not accessible to users as they are MATLABs proprietary code. They are p-coded, which its matlabs way to obscure code. You can only see the header of p-coded files.

You may still place breakpoints and see what they do with the workspace, but you will not be able to see the source code.