Matlab to C code conversion issue

There is unfortunately no code generation support for the input function as of MATLAB R2019a. We've made an internal note of your request so we can look at lifting that limitation in the future.

In the interim, here is a potential workaround -

function y = foo
    y = input_codegen('Enter a number: ');
    fprintf('Read: %s\n',y);
end
function resp = input_codegen(prompt)
    %#codegen
    coder.extrinsic('input');
    if coder.target('MEX') || coder.target('MATLAB') || coder.target('Sfun')
        resp = input(prompt, 's');
    else
        coder.cinclude('<stdio.h>');
        fprintf('%s',prompt);
        cresp = char(zeros(1,1024));
        coder.ceval('fgets',coder.ref(cresp(1)), 1023, coder.opaque('FILE*','stdin'));
        % Call strlen in C and trim output
        slen = int32(1);
        slen = coder.ceval('strlen',coder.rref(cresp(1)));
        resp = cresp(1:slen);
    end
end

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Answer 2

Steven Lord 2019-8-14

2
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/476121-matlab-to-c-code-conversion-issue#answer_387629

在 MATLAB Online 中打开

function final_seq=myapp(x,y,a,b,i,j,z,k,p,m,new,xt,J,ix,X1,final_seq)
x=input(' Enter fast clock ratio '); %fast clock
y=input(' Enter slow clock ratio '); %slow clock

x and y are the first two inputs to your function, but your input calls are throwing away those first two inputs to replace them with the user-entered data. Why not just have the code that calls your generated function pass x and y into your function directly and eliminate input?