I have done a test for creating .m file to .dll to use in MSVC++ 6.0.
I put here with step by step of procedure, and hope it could help.
1. You need to have the MATLAB C/C++ Library and MATLAB Compiler
in your computer.
2. Set up your project in MSVC++ for working with MATLAB C++
Library. Follow the instruction at:
http://www.mathworks.com/support/solutions/data/27257.shtml
3. Create the .dll file from MATLAB M-file
http://www.mathworks.com/support/solutions/data/27671.shtml
4. Add the .dll in the appropriate directory and build your .exe
file in MSVC++ .
Jack Phan
///////////////////////////////////////////////////////////
//EXAMPLE STEP BY STEP FOR CREATING .dll FILES USING.
1.I have created the file mySquare.m in folder myMatlab
(code in step 9)
2.Create the command line to get lib file
D:/MyDocuments/MathLab/MatlabC++/myMatlab>
mcc -t -L C -W lib:mySquarelib -T link:lib mySquare.m libmmfile.mlib
3.It will create 9 files :
mySquare.c
mySquare.h
mySquarelib.c
mySquarelib.h
mySquarelib.exports
mySquarelib.dll
mySquarelib.exp
mySquarelib.lib
mySquarelib.mlib
4.Add the file mySquarelib.h into project
5.Create a new folder MyAddingLib in C:/matlabR12/extern/lib/win32
then copy file mySquarelib.lib into it
6.Add
,C:/matlabR12/extern/lib/win32/MyAddingLib
into Additional library path (click Project Setting in MSVC++ menu,
click Link,
Input(in Category)(note: separated by comma)
7.Add
mySquarelib.lib
into Object/library modules:
(note: no comma, separated by a space)
(click Project Setting in MSVC++ menu, click Link,
Input(in Category)
8.Add the file mySquarelib.dll into project Debug folder
(example: my project name is Work02)
or if you want you could add the file mySquarelib.dll into
C:/matlabR12/extern/lib/win32
9.This is my M-file (mySquare.m)
function y = mySquare(x)
y = x*x ;
10.This is a project file CPP
// test.cpp
#include <iostream.h>
#include "test.h"
main() {
cout <<"Hello, Test for Matlab C++ compiler" << endl ;
Test obj ;
double xx = 1.2 ;
double yy = obj.CalculateMySquare(1.2) ;
return 0 ;
}
double Test::CalculateMySquare(double x)
{
mxArray *x_ptr;
mxArray *y_ptr;
double *pVal ;
/* Create an mxArray to input into mlfMySquare */
x_ptr = mlfScalar(x);
/* Call the initial function */
mySquarelibInitialize() ;
/* Call the implementation function */
y_ptr = mlfMySquare(x_ptr);
// NOTE : NEED TO CAPITAL WORD ‘ M ‘
/* Call the library termination function */
mySquarelibTerminate() ;
/* The return value from mlfMySquare is an mxArray so we must extract
the data from it
*/
pVal = mxGetPr(y_ptr);
double y = *pVal ;
return y ;
}
////////////////////////////////////////////////////////////////
// test.h
#include "matlab.hpp"
#include "mySquarelib.h"
class Test {
public:
double CalculateMySquare( double x );
Test(){ ;}
~Test(){ ; }
} ; // end class
////////////////////////////////////////////////////////////////////
11. Summary : You need only 2 files from 9 files which are
created from Matlab
Ben wrote:
>
>
> To convert you MATLAB code to C or C++ use mcc, type help mcc for
> more information,
>
> To speed up your program, I guess thatin your MATLAB code there are
a
> lot of for loops, MATLAB is not good with loops
>
> say for i=1:.001:1000 '
> do any calculation
> end
>
> To overcome this then try
> 1. Victorization
> 2. Mex Function. either in C or Fortran