Ryan Livingston

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MathWorks

205 total contributions since 2012

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Answered
Automatic code generation of c++ code from matlab functions
There is not an option to return arrays as a return value from the generated functions. The documentation describes the expected...

17 days ago | 0

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Embedded Coder give uncompilable code using dynamic arrays
This is a bug and has been reported to our development team. In addition to the postprocessing workaround suggested by Glenn, yo...

4 months ago | 0

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C code generation symbols not found linker error
In your ZIP file you'll notice files cg_imadjust.c, cg_imadjust_interminate.c that also need to be compiled and linked. main.c c...

6 months ago | 0

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How to write data to text file on raspberry pi using matlab
The MATLAB functions fopen, fprintf, fclose all support code generation. They use the C runtime library so they can run on the R...

8 months ago | 0

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Can I access an external (const) array within generated C++ code without copying the contents into a local array?
With Embedded Coder you can use the function coder.storageClass to pull in that array as an imported extern global variable: fu...

10 months ago | 0

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Integrating Matlab Coder with c#
In addition to Bill's answer, generating the interface binding the generated C code to C# with something like SWIG is also an op...

10 months ago | 1

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Equivalent command of "-M" at MCC in CODER GUI
There's no built-in way to pass a resource file to MATLAB Coder. You may be able to achieve this by adding the resource file as ...

1 year ago | 1

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Matlab Coder Windows -> Linux cross-compilation
Check out: https://www.mathworks.com/matlabcentral/answers/71539-how-to-deploy-a-matlab-app-to-ios-and-android That links to a...

1 year ago | 2

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Codegen: Remove date in header file
The CodeTemplate setting allows you to customize this. Here's an example: https://www.mathworks.com/help/ecoder/ug/generate-cus...

1 year ago | 0

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Is there a version switch for codegen?
Use coder.const to forcibly constant fold the extrinsic call to verLessThan if coder.const(verLessThan('matlab', '9.1')) %...

1 year ago | 1

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Answered
Matlab Coder Memory usage
Without specifics of your project it's hard to give precise suggestions. The MATLAB Coder documentation has a performance sectio...

1 year ago | 0

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Raspberry does not write in a created file
This is because of a bug in the Raspberry Pi system command in codegen. It doesn't trim the output to the proper size and instea...

1 year ago | 2

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Answered
Compile a C code on a Raspberry Pi with a library generated with Matlab C Coder
The generated code should not be depending on the headers emlrt.h, matrix.h etc. Those are only available when running in MATLAB...

1 year ago | 0

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Answered
Converting Matlab code with a function handle within a structure to C/C++
Function handles, and values containing them, are not supported as inputs and outputs from entry-point functions. As a workaroun...

1 year ago | 1

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Matlab Coder: How can ich define the inputs of a Mex file I want to generate if the input is a cell containing several strcuts?
If you have a variable that represents this cell array, call it cellVar, then you can use that to define by example in the Coder...

1 year ago | 0

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Answered
function coder.newtype not supported for code genertion
Can you elaborate on where you used coder.newtype? If using the codegen command you can: codegen myFunction -args {coder.typeof...

2 years ago | 1

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Is there a way to disable line wrapping in generated C code from MATLAB Coder?
Edit As of MATLAB R2018b you can use the coder.EmbeddedCodeConfig setting ColumnLimit to control line wrapping in the generated...

2 years ago | 2

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C++ code generated by Matlab coder too slow
If the bottleneck in the generated code is in fft or other MATLAB builtin functions, I'd suggest taking a look at this answer: ...

2 years ago | 1

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Coder: Create a Makefile for Linux from Windows.
Unfortunately there is not a good way to achieve this with MATLAB Coder today. We've made an internal note of your request so we...

2 years ago | 0

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Compile ODE solver with parameterized function
As of MATLAB R2016b, code generation with MATLAB Coder supports anonymous functions: https://www.mathworks.com/help/coder/relea...

2 years ago | 1

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How to use varargout function with matlab coder?
Starting in MATLAB R2017b, MATLAB Coder supports varargout in entry-point functions. The documentation: https://www.mathworks.c...

2 years ago | 0

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Answered
Error in generating code with custom FFT library in Matlab Coder
This is a bug in the generated code: https://www.mathworks.com/support/bugreports/1709696 As shown in the bug report, it was f...

2 years ago | 0

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Answered
Using hetrogenous cells for code generation
You can do this assuming that |nParams| is a compile-time constant. For example: codegen cellExample -args coder.Constant(4...

2 years ago | 0

Submitted

coder-swig
Examples showing how to use SWIG to wrap MATLAB Coder generated C and C++ code for other languages

2 years ago | 1 download |

Answered
How to debug generated mex codes
*Moved from comment* To debug generated MEX code, just pass the -g option to codegen and that will compile a debug MEX file. You...

2 years ago | 0

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Parallel Computation of Covariance and C Code Generation
*Update* Starting in R2018b you can generate code that calls a CBLAS as well as an LAPACK library: <https://www.mathworks.com...

2 years ago | 3

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How to debug generated mex codes
It sounds like you are generating MEX code. MEX code assumes that MATLAB is present and as a result it may have a large number o...

2 years ago | 0

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Can matlab coder generate code that uses a specified external uBLAS linear algebra library included with BOOST?
*Update* Starting in R2018b you can generate code that calls a CBLAS as well as an LAPACK library: <https://www.mathworks.co...

2 years ago | 1

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Answered
why is mex parfor slower them mex for?
When I try your example on Linux (Debian 9) using GCC I see a good speedup with |parfor| in generated MEX: for : time = ...

2 years ago | 1

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Answered
Why the same function is taking more time after MEX creation?
The MATLAB Coder documentation has a section covering acclerating MATLAB code via MEX generation: <https://www.mathworks.com/...

2 years ago | 0

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