Function makeSparse

test/sparse_common.hpp:33–37

template<typename T>
static af::array makeSparse(af::array A, int factor) {
    A = floor(A * 1000);
    A = A * ((A % factor) == 0) / 1000;
    return A;
}

template<>
af::array makeSparse<cfloat>(af::array A, int factor) {