The C/C ++ program calls the MATLAB program through the dynamic link library, and dynamically links the library matlab

The C/C ++ program calls the MATLAB program through the dynamic link library, and dynamically links the library matlab
C/C ++ program calls MATLAB program 1 through dynamic link libraryMATLAB compiler settings

You must set the corresponding C ++ compiler to compile the. m file to generate a library file that can be called by C ++.

In the MATLAB command line, enter: mex-setup; then enter: mbuild-setup, and select the installed VC compiler.

2 Compile the MATLAB program into a C/C ++ Dynamic Link Library

Suppose there is an Add. m file that needs to be compiled into a library file:

function C=Add(A,B)　　C=A+B;end

2.1 compile the MATLAB program into a C Dynamic Link Library

Mcc compilation options:

>>mcc –W lib:libname file.m –T link:lib

Use the bundled command file:

>>mcc –B csharedlib:libname file.m

2.2 setMATLABProgram compiledC ++Dynamic Link Library

Mcc compilation options:

>>mcc –W cpplib:libname file.m –T link:lib

Use the bundled command file:

>>mcc –B cpplib:libname file.m

2.3 File Format

After successful compilation, some files are generated in the Add. m path:

3. CreateC/C ++Program callMATLABFunction

3.1Set the project Platform

Set the corresponding project platform based on the number of digits (32 or 64) of MATLAB.

3.2 Engineering Environment Settings

Copy the previously generated libAdd. dll, libAdd. h, and libAdd. lib files to the newly created C ++ project, and set project properties.

• Project Properties -- VC ++ directory -- include directory:

• Project Properties -- VC ++ directory -- library directory:

 

 

• Project Properties -- linker -- input:

Libeng. liblibmat. liblibmex. liblibmx. libmclmcrrt. libmclmcr. liblibAdd. lib (the last one is generated by Add. m)

3.3 C ++ Program

#include <iostream>#include "libAdd.h"using namespace std;int main(){    if (!libAddInitialize())        return -1;    double a[4] = { 1,2,3,4 };    double b[4] = { 1,1,1,1 };    double c[4];    mwArray mwA(2, 2, mxDOUBLE_CLASS);    mwArray mwB(2, 2, mxDOUBLE_CLASS);    mwArray mwC(2, 2, mxDOUBLE_CLASS);    mwA.SetData(a, 4);    mwB.SetData(b, 4);    Add(1, mwC, mwA, mwB);    mwC.GetData(c, 4);    cout << "mwC=\n" << mwC << endl;    cout << "c=" << endl;    for (int i=0;i<4;i++)    {        if (i%2==0)        {            cout<<endl;        }        cout<<'\t'<<c[i];    }    cout<<endl;    libAddTerminate();    return 0;}

Output result: