关于mwArray和一般数组的区别

可以用下面的代码详细理解mwArray和一般数组之间的区别

        mwArray a(3, 2,  mxDOUBLE_CLASS);
        double *aData;
        aData = new double[6];
        int iii;
        for( iii=0; iii<6; ++iii)
        {
                aData[iii] = iii+1;
        }
        // print output
        std::cout << "a = " << std::endl;
        std::cout << aData[0] << ",\t" << aData[1] << std::endl;
        std::cout << aData[2] << ",\t" << aData[3] << std::endl;
        std::cout << aData[4] << ",\t" << aData[5] << std::endl;  

        a.SetData(aData, 6);
        std::cout << "a(1,1)="<<a(1,1)<<std::endl;
        std::cout << "a(1,2)="<<a(1,2)<<std::endl;
        std::cout << "a(2,1)="<<a(2,1)<<std::endl;
        std::cout << "a(2,2)="<<a(2,2)<<std::endl;
        std::cout << "a(3,1)="<<a(3,1)<<std::endl;
        std::cout << "a(3,2)="<<a(3,2)<<std::endl;

运行结果如图：【一位数组到多维数组的组织方式是列优先的】

a =

1,      2

3,      4

5,      6

a(1,1)=1

a(1,2)=4

a(2,1)=2

a(2,2)=5

a(3,1)=3

a(3,2)=6