Error: Index exceeds array dimensions. Index value 2 exceeds valid range [1-1] of array a.

Hello All, I am converting matlab script to C++.

Here is a test function which is similar to my project. When i try to generate C code using Matlab coder it is throwing index exceeds its valid range. What is the meaning of this error. Could anyone guide me how to fix this, please.

function [a]=test()

% a=repmat(struct('in1',zeros(1,5),'in2',ones(1,5)),1,5);
years = 1950:10:1990;
service = 10:10:30;
wage = [150.697 199.592 187.625
          179.323 195.072 250.287
          203.212 179.092 322.767
          226.505 153.706 426.730
          249.633 120.281 598.243];
for i = 1:5
a(i).in1=interp2(service,years,wage,15,1975);
a(i).in2=interp2(service,years,wage,15,1970);
end

[Jan]

The code is running fine in Matlab. Please post a copy of the complete error message, because I hope that it clarifies, which line is concerned.

[Naga Manoj Kumar Lakkoju]

Yes It is working fine in MATLAB, when trying to convert to C++ using amtlab coder It is showing error.

[Naga Manoj Kumar Lakkoju]

So for 1 loop it is working fine, when it enters to second loop it is throwing Dimension error.

[Jan]

What happes if you pre-allocate the struct array a? You show some outcommented code already. Or:

a = struct('in1', cell(1,5), 'in2', cell(1,5));

[Naga Manoj Kumar Lakkoju]

Yes, it is showing size mismatch error. I will post it here. For this error we have to say something like

coder.varsize('a.in1')

coder.varsize('a.in2')

yes, Now it is working fine.

May I ask you why you have used cell instead of zeros or ones.