Function gfor

test/meanshift.cpp:164–166

    array B   = constant(0, dims);

    gfor(seq ii, 3) {
        B(span, span, ii) = meanShift(A(span, span, ii), 3, 5, 3);
    }

    for (int ii = 0; ii < 3; ii++) {
        array c_ii = meanShift(A(span, span, ii), 3, 5, 3);