下面是这个例子用到的m代码。它定义了一个名为myadd2的函数：
CODE:
function [y,z] = myadd2(a, b)
% dummy function, just to demonstrate the idea
y = a+b;
z = a+2*b;
end
VC Code
CODE:
#include "stdafx.h"
#include
#include "mclmcr.h"
#include "mclcppclass.h"
#include "libmyadd2.h"
int _tmain(int argc, _TCHAR* argv[])
{
std::cout << "Hello world!" << std::endl;
/* Initialize the MCR */
if( !mclInitializeApplication(NULL,0) )
{
std::cout << "Could not initialize the application!" << std::endl;
return -1;
}
// initialize lib
if( !libmyadd2Initialize())
{
std::cout << "Could not initialize libmyadd2!" << std::endl;
return -1;
}
try
{
// declare and initialize a
mwArray a(2, 2, mxDOUBLE_CLASS);
double *aData;
aData = new double[4];
int i;
for( i=0; i<4; ++i)
{
aData[i] = 1.0*i;
}
// print output
std::cout << "a = " << std::endl;
std::cout << aData[0] << ", " << aData[1] << std::endl;
std::cout << aData[2] << ", " << aData[3] << std::endl;
a.SetData(aData, 4);
// declare and initialize b
mwArray b(2, 2, mxDOUBLE_CLASS);
b(1,1) = 11.;
b(1,2) = 12.;
b(2,1) = 21.;
b(2,2) = 22.;
mwArray y(2, 2, mxDOUBLE_CLASS);
mwArray z(2, 2, mxDOUBLE_CLASS);
// call the function
myadd2(2, y, z, a, b);
// copy data from mwArray to C++ objects
// allocate outputs
double *yData, *zData;
yData = new double[4];
if( yData == NULL )
{
std::cout << "Failed to allocate memory for yData!" << std::endl;
return -1;
}
zData = new double[4];
if( zData == NULL )
{
std::cout << "Failed to allocate memory for zData!" << std::endl;
return -1;
}
// copy data from mwArray to C++
y.GetData(yData, 4);
z.GetData(zData, 4);
// print output
std::cout << "y = " << std::endl;
std::cout << yData[0] << ", " << yData[1] << std::endl;
std::cout << yData[2] << ", " << yData[3] << std::endl;
std::cout << "z = " << std::endl;
std::cout << zData[0] << ", " << zData[1] << std::endl;
std::cout << zData[2] << ", " << zData[3] << std::endl;
// deallocate memory
delete [] aData;
delete [] zData;
delete [] yData;
}
catch( const mwException& e)
{
std::cerr << e.what() << std::endl;
}
// terminate the lib
libmyadd2Terminate();
// terminate MCR
mclTerminateApplication();
return 0;
}