Function demo_getCompMatr

examples/isolated/initialising_matrices.cpp:52–90

void demo_getCompMatr() {

    // inline literal (C++ only)
    CompMatr1 a = getCompMatr1( {{1,2_i},{3_i+.1,-4}} );
    reportCompMatr1(a);

    // 2D vector (C++ only)
    vector<vector<qcomp>> vec {{-9,-8},{-7,-6}};
    CompMatr1 b = getCompMatr1(vec);
    reportCompMatr1(b);

    // 2D compile-time array
    qcomp arr[2][2] = {{5, 4},{3, 2}};
    CompMatr1 c = getCompMatr1(arr);
    reportCompMatr1(c);

    // nested pointers
    int dim = 4;
    qcomp** ptrs = (qcomp**) malloc(dim * sizeof *ptrs);
    for (int i=0; i<dim; i++) {
        ptrs[i] =(qcomp*) malloc(dim * sizeof **ptrs);
        for (int j=0; j<dim; j++)
            ptrs[i][j] = i + j*1i;
    }
    CompMatr2 d = getCompMatr2(ptrs);
    reportCompMatr2(d);

    // array of pointers
    qcomp* ptrArr[4];
    for (int i=0; i<dim; i++)
        ptrArr[i] = ptrs[i];
    CompMatr2 e = getCompMatr2(ptrArr);
    reportCompMatr2(e);

    // cleanup
    for (int i=0; i<dim; i++)
        free(ptrs[i]);
    free(ptrs);
}