running matlab exe file results in "Too many input arguments. MATLAB:TooManyInputs error"

Question

Amin 2024-4-23

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2110881-running-matlab-exe-file-results-in-too-many-input-arguments-matlab-toomanyinputs-error

编辑： Amin 2024-4-24

When compiling a MATLAB (.m) function (main_file below is code) into a standalone executable (.exe) through MATLAB Compiler, the command-line arguments passed to the executable are not being accepted. Instead of parsing the arguments through the getmcruserdata('syscommandargs') function within the compiled MATLAB application, MATLAB is throwing an error, stating there are "Too many input arguments. the following code works fine when i dont pass any args (main_file.exe). however with passign args I get error. Note that I expect when i pass args the disp('Not enough arguments received.'); print message but it does not. I made the following function to exe which is named main_file.exe. Running main_file.exe "test1args" "test2args" results in error (Too many input arguments. MATLAB:TooManyInputs). Please help me to resolve it. Thanks.

function main_file
    param1 = 'test1args';
    param2 = 'test2args';
    if isdeployed
        disp("Reading input arguments");
        args = getmcruserdata('syscommandargs');
        if isempty(args)
            disp('Not enough arguments received.');
        else
            % Parse args
            args_cell = strsplit(args{1}, ' ');
            if numel(args_cell) >= 2
                param1 = args_cell{1};
                disp(param1);
                param2 = args_cell{2};
                disp(param2);
            else
                disp('more than 2 arguments received.');
            end
        end
    else
        disp('Running in MATLAB');
        param1 = 'test1args';
        disp('test2args');
        disp(param1);
        param2 = 'Yes';
        disp('param2');
        disp(param2);
    end
    disp("hello from executable...")
    app = RunLocallyMat();
    disp("init done")
    app.main_process(param1, 'process', param2);
    disp("process done")
end

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Answer 1

Walter Roberson 2024-4-23

1
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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2110881-running-matlab-exe-file-results-in-too-many-input-arguments-matlab-toomanyinputs-error#answer_1446696

在 MATLAB Online 中打开

You need

function main_file(varargin)

When you compile an executable, command line arguments are passed as parameters to the main function . You defined function main_file without parameters, so running with no parameters at least gets the code started, but running with parmeters immediately fails for having passed extra parameters to main_file

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Amin 2024-4-24

编辑：Amin 2024-4-24

在 MATLAB Online 中打开

thanks. the following resolve the issue.

function main_file(varargin)
    p = inputParser;
    addParameter(p,'case1','case1_val',@ischar);
    addParameter(p,'case2','case2_val',@ischar);
    parse(p, varargin{:});
    param1 = p.Results.case1;
    param2 = p.Results.case2;
    if isdeployed
        disp('Running using exe');
        disp("Reading input arguments");
        disp(p.Results)
    else
        disp('Running in MATLAB');
        disp(['case1: ', param1]);
        disp(['case2: ', param2]);
    end
    disp("hello from executable...")
    app = RunLocallyMat();
    disp("init done")
    app.main_process(param1, 'process', param2);
    disp("process done")
end