コード例 #1
0
void test_gamma() {
    cout << "Testing gamma coding ..." << endl;
    BinaryFileWriter writer;

    if (!writer.open(file_name + "_gamma")) {
        return;
    }

    vector<int> a;
    int n = 100;
    srand(unsigned(time(0)));
    for (int i = 0; i < n; ++i) {
        a.push_back(rand() % 1000000 + 1);
    }
    for (int i = 0; i < n; ++i) {
        if (!writer.write_gamma(a[i])) {
            cerr << "FAILED write gamma " << a[i] << endl;
            return;
        }
    }

    writer.close();

    BinaryFileReader reader;
    if (!reader.open(file_name + "_gamma")) {
        return;
    }

    for (int i = 0; i < n; ++i) {
        int x = reader.read_gamma();
        if (x != a[i]) {
            cerr << "FAILED: " << x << " != " << a[i] << endl;
            return;
        } else {
            if (debug_test_binary_encoding) cout << "OK: " << x << " = " << a[i] << endl;
        }
    }

    cout << "PASSED." << endl;
    reader.close();
}
コード例 #2
0
void test_all() {
    cout << "Testing all ..." << endl;

    int n = 6;
    const string a[] = {"cháy", "năm", "lượng", "nhân", "trên", "Tân Đình"};

    vector<int> numbers;
    vector<string> words;
    vector<int> which;

    int total = 100;

    BinaryFileWriter writer;

    if (!writer.open(file_name + "_all")) {
        return;
    }

    srand(unsigned(time(0)));

    for (int run = 0; run < total; ++run) {
        int t = rand() % 5;
        which.push_back(t);
        if (t == 0) {
            int at = rand() % n;
            words.push_back(a[at]);
            writer.write_string(a[at]);
        } else {
            int number = rand() % 1000000 + 1;
            numbers.push_back(number);
            if (t == 1) writer.write_unary(number);
            else if (t == 2) writer.write_gamma(number);
            else if (t == 3) writer.write_delta(number);
            else writer.write_omega(number);
        }
    }


    writer.close();

    BinaryFileReader reader;
    if (!reader.open(file_name + "_all")) {
        return;
    }

    int inumber = 0, iword = 0;
    for (int run = 0; run < total; ++run) {
        int t = which[run];
        if (t == 0) {
            string s = reader.read_string();
            string t = words[iword++];

            if (s != t) {
                cerr << "FAILED: " << s << " != " << t << endl;
                return;
            } else {
                if (debug_test_binary_encoding) cout << "OK: " << s << " = " << t << endl;
            }
        } else {
            int number = numbers[inumber++];
            int x = -1;

            if (t == 1) x = reader.read_unary();
            else if (t == 2) x = reader.read_gamma();
            else if (t == 3) x = reader.read_delta();
            else x = reader.read_omega();

            if (x != number) {
                cerr << "FAILED: " << x << " != " << number << endl;
                return;
            } else {
                if (debug_test_binary_encoding) cout << "OK: " << x << " = " << number << endl;
            }
        }
    }

    cout << "PASSED." << endl;
    reader.close();
}