Vector存放函式指標

int exampleFUnc1(int i, int j) {
    return i + j;
}

int exampleFunc2(int i, int j) {
    return i - j;
}

int exampleFunc3(int i, int j) {
    return i * j;
}

int exampleFunc4(int i, int j) {
    __glibcxx_assert(j != 0);
    return i / j;
}

typedef decltype(exampleFUnc1) *funcptr;

std::vector<funcptr> vector1;
    vector1.push_back(exampleFUnc1);
    vector1.push_back(exampleFunc2);
    vector1.push_back(exampleFunc3);
    vector1.push_back(exampleFunc4);

    for (auto &i: vector1) {
        std::cout << i(8, 4) << "  ";
    }
    std::cout << std::endl;