c++primer练习12.6

auto getter() {
    return new vector<int>();
}
auto setter(vector<int>* vec) {
    int x;
    while (cin >> x)
        vec->push_back(x);
    return vec;
}
auto read(vector<int>* vec) {
    for (auto fuck : *vec)
        cout << fuck << ends;
}
int main() {
    
    auto vec=getter();
    vec=setter(vec);
    read(vec);
    delete vec;
}

 

16.4
template<typename I, typename T>I my_find(I b, I e, T val) { while (b != e) { if (*b == val)return b; else ++b; }return e; }

 

16.5
template<typename T, unsigned N>auto print(const T(&x)[N]) { for (auto s : x)cout << s << endl; }