Function demo_setFullStateDiagMatr

examples/isolated/initialising_matrices.cpp:373–400

void demo_setFullStateDiagMatr() {

    // force use of available hardware acceleration
    QuESTEnv env = getQuESTEnv();
    FullStateDiagMatr matr = createCustomFullStateDiagMatr(5, env.isDistributed, env.isGpuAccelerated, env.isMultithreaded);

    // inline literal (C++ only)
    setFullStateDiagMatr(matr, 0, {1,2,3,4});
    setFullStateDiagMatr(matr, 4, {5,6,7,8});

    // vector (C++ only)
    vector<qcomp> vec {11, 22, 33, 44};
    setFullStateDiagMatr(matr, 7, vec);

    // compile-time array must pass size
    qcomp arr[4] = {7_i, 8_i, 8, 7};
    setFullStateDiagMatr(matr, 15, arr, 4);

    // heap pointer
    int dim = 6;
    qcomp* ptr = (qcomp*) malloc(dim * sizeof *ptr);
    for (int i=0; i<dim; i++)
        ptr[i] = -i*.5_i;
    setFullStateDiagMatr(matr, 25, ptr, 6);

    reportFullStateDiagMatr(matr);
    destroyFullStateDiagMatr(matr);
}


void demo_syncFullStateDiagMatr() {