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Ryan Livingston

Last seen: 7 months ago Active since 2012

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Answered
Errors using codegen when using structure as return values of function
The issue that Coder is flagging is that you have something like someStruct.field1 = value; use(someStruct.field1); % This ...

9 months ago | 0

Answered
"Incompatible types" error while loading C function that returns a pointer to array using codegen
I immediately see a few issues you need to solve: Your C code is broken because it returns a pointer into y which is a locally ...

11 months ago | 0

Answered
Non-constant expression or empty matrix. This expression must be constant because its value determines the size or class of some expression.
For code generation, the file name input to load must be a constant: https://www.mathworks.com/help/matlab/ref/load.html#refsec...

12 months ago | 0

Answered
Issues iterating over list of functions using str2func with codegen
Coder requires the input to str2func to be a constant name. Uncommenting the line funcList = {'max','min','mean','mode'}; in y...

12 months ago | 0

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Answered
Extract function/code from MATLAB to c++
A workaround for this case is to use a wrapper function function A = FilterXXXWrapper(in1,in2,in3,in4) % Construct your object...

1 year ago | 0

Answered
How to include all required headers in code generated by MATLAB coder?
When I run the codegen command in MATLAB Coder in MATLAB R2022b, I see that all CXSparse files appear in the codegen folder unde...

1 year ago | 1

Answered
Why isn't angle2dcm compatible with codegen?
I don't have a compelling reason for this limitation. So I created an internal note with your request to support this in the fut...

1 year ago | 0

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Answered
Add 'lib' prefix to libraries generated with MATLAB Code Generator
You can use the -o argument to codegen to rename the library: codegen somecode -args 1 -o libmylibrary In the Coder App the "O...

1 year ago | 0

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Answered
Matlab Coder force boolean_T to be native C99 bool type
This is question was asked on StackOverflow: https://stackoverflow.com/questions/71513527/matlab-coder-force-boolean-t-to-be-na...

2 years ago | 0

Answered
MATLAB crashed when running MATLAB Coder.
Update This is a bug in MATLAB Coder. Details including workarounds are captured in: https://www.mathworks.com/support/bugrepor...

2 years ago | 2

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Answered
dde23 use in MATLAB coder for MEX files
Unfortunately the dde functions do not support code generation. I've made an internal note of your request so we can consider th...

2 years ago | 0

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Answered
How to define lower limit at while code generation?
There is unfortunately no way to define a lower bound for a size. In this case, if you define the upper bound, Coder will assume...

2 years ago | 1

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Answered
StackData macro not generated for C++
It is by design that the typedef guards are not present in C++. The use case you describe here is not one we had in mind for the...

3 years ago | 0

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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...

3 years ago | 0

Answered
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...

3 years ago | 0

Answered
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...

3 years ago | 0

Answered
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...

4 years ago | 0

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Answered
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...

4 years ago | 0

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Answered
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...

4 years ago | 1

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Answered
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 ...

4 years ago | 1

Answered
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...

4 years ago | 2

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Answered
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...

4 years ago | 0

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Answered
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')) %...

4 years 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...

4 years ago | 0

Answered
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...

4 years 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...

4 years 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...

5 years ago | 1

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Answered
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...

5 years ago | 0

| accepted

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...

5 years ago | 1

Answered
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...

5 years ago | 2

| accepted

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