Hi Omer Ali,
Here are a few basic things to know about the codegen command
"-args" option
Unlike MATLAB, C++ is a typed language, so the data type of the input should be determined before generating the code. For example, consider the following function
function res = add(x,y)
res = x+y;
end
the function 'add' can be called with multiple data types.
add(double(2),double(3))
add(single(2),single(3))
However, while generating code the input data type should be fixed. To achieve this, the '-args' option should be used as follows,
% define the inputs
x = double(5);
y = double(6);
codegen function_name -args {x,y}
% note that the values in x and y doesn't matter, only their types are used
% to determine the input types
"-config" option
The MATLAB function can be converted to 'mex', static or dynamic library and an executable. To specify the resultant format and to customize few code generation setting "-config" option can be used as follows
cfg = coder.config('mex'); % for mex
cfg = coder.config('lib'); % for static library
cfg = coder.config('dll'); % for dynamic library
codegen function_name -args {arg1,arg2,arg3..} -config cfg
However, to generate an executable, a 'main' function is needed to serve as the entry point of the program. The config object can be configured to generate a sample main file,
cfg = coder.config('exe'); % for executable
cfg.GenerateExampleMain = true;
codegen function_name -args {arg1,arg2,arg3..} -config cfg
For more information please refer the following resources,
Generating Standalone C/C++ Executables from MATLAB Code - https://www.mathworks.com/help/coder/ug/standalone-c-c-executables-from-matlab-code.html
'codegen' command - https://www.mathworks.com/help/coder/ref/codegen.html
Hope this is helpful.
