Calling Matlab from C++

I have some data in 2d std::vector

 for (int j=0; j<2; j++){
 result.push_back(vector<double>());
 for (int i=0; i<10; i++) result[j].push_back(i);
 }

result is 2x10 matrix. I'd like to send result to matlab.

 #include "engine.h"
 #pragma comment( lib, "libmx.lib"  )
 #pragma comment( lib, "libmex.lib" )
 #pragma comment( lib, "libeng.lib" )

 int main(int argc, char** argv){
 Engine *ep;
 ep = engOpen(NULL);
 int const SIZE=2;
 int const SIZE2=10;
 double x[SIZE][SIZE2];
 mxArray *A=NULL;
 A=mxCreateDoubleMatrix(SIZE2, SIZE, mxREAL);
 memcpy((void *)mxGetPr(A), (void *)x, sizeof(double)*SIZE*SIZE2);
 engPutVariable(ep, "Data", A);
 engEvalString(ep, "newData = Something(Data)");
 double *cresult;
 mxArray *mresult;
 mresult = engGetVariable(ep,"newData");
 cresult = mxGetPr(mresult);
 mxDestroyArray(A);
 mxDestroyArray(mresult);
 engClose(ep);
 return 0;
}

I also add path to directories:

 C:\Program Files\MATLAB\MATLAB Production Server\R2012
 C:\Users\User\Documents\MATLAB

and libraries:

 C:\Program Files\MATLAB\MATLAB Production Server\R2012b\extern\lib\win64\microsoft

But I have such error: " fatal error LNK1120: 8 unresolved externals ", when i try to build it.

[Artyom]

Ok, I solved it. I forgot to change platform from x32 to x64 and run the code with administrator privileges.

[Kaustubha Govind]

Artyom: You might want to post this as an answer and "accept" it, so that it is clear that this issue is resolved. Thanks!

Answer 1

[Wayne King]

If you want the results in the MATLAB workspace, why not create a MEX file with your C++ code?

http://www.mathworks.com/help/matlab/build-cc-mex-files.html

[Artyom]

No the result will be in C++.