Esempi in C++ (Cpp) per crs_matrix::na_value

Esempio n. 1

File: crs_matrix_test.cpp Progetto: muellan/containers

void check_indexed_access(const fixture<T,NA>& fix,
                          const crs_matrix<T,NA>& m)
{
    using idx_t    = typename fixture<T,NA>::index;

    if(fix.expected_items().empty()) return;

    //check indexed access of stored elements
    for(const auto& x : fix.expected_items()) {
        if(m(x.row, x.col) != x.val)
            throw std::logic_error{"crs_matrix, indexed access of stored values"};
    }

    //check indexed access of non-stored elements
    for(idx_t r = 0; r < m.rows(); ++r) {
        for(idx_t c = 0, cols = m.cols(); c < cols; ++c) {
            bool stored = false;

            for(const auto& x : fix.expected_items()) {
                if(x.row == r && x.col == c) {
                    stored = true;
                    break;
                }
            }

            if( !stored &&
                (m(r,c) != m.na_value() || m.has(r,c)) )
            {
                throw std::logic_error{"crs_matrix, indexed access of n/a values"};
            }
        }
    }
}