Question about code generation.

Hi all, I am a new user of Matlab. (version R2016b) I have an algorithm that I wanted to convert to C language to accelerate the simulation time, and i have seen that the matlab coder can do that. So I installed the toolbox, but after trying to use it I realized that it generates .prj files. If that is the case, how can I use it on matlab? Is there a way to call the converted C code on Matlab? Thanks.

Answer 1

[Walter Roberson]

The .prj files are files that describe which source files are to be included and how to compile them; the .prj files are not the executables. You need to tell it to generate the code.

See https://www.mathworks.com/company/newsletters/articles/accelerating-matlab-algorithms-and-applications.html#CCode and https://www.mathworks.com/campaigns/products/offer/download_matlab-coder.html

[Chan KitHoe]

So after i generated the prj file, how can i use it on either the matlab platform or visual studio platform? In what way can I use that converted C code.prj file? Is there a code where I include in a script to call that converted C code.prj file?

[Chan KitHoe]

What is the difference between a prj file and a mex file? Is the mex file another type of prj file that could be compiled in Matlab? Sorry for asking such a dumb question, I am new to this...

[Walter Roberson]

prj files are just files that say what is to be compiled and which tools to use to compile it. They are not source files and do not get compiled themselves.

The links I posted should walk you through the code generation process.

mex files are C or C++ or Fortran source code that can be compiled and linked for use with MATLAB. They are actual source files, not control files that say what should be compiled.

prj files are like the instructions on a Paint-by-Numbers set; mex files are like the paint. Instructions without paint do not get you anywhere. Paint without instructions might get you somewhere by themselves. But it is easier to have both together.