chaos/chaos.cpp at main · jaiveer077/chaos · GitHub

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#include <bits/stdc++.h>
using namespace std;

template<typename T> struct Ω;
template<int N> struct Φ : Φ<N-1> {};
template<> struct Φ<0> {};

template<typename T>
using ptr = T*;

template<typename T>
using fn = T(*)(T);

int α(double, char**) { return 42; }
int β(double, char**) { return 13; }
int γ(double, char**) { return 7; }

int (*ψ[3])(double, char**) = {α, β, γ};

int (*(*(*δ)(int))(double, char**))[3];

template<typename T>
struct Ω {
    using type = typename Ω<typename T::type>::type;
};

template<>
struct Ω<int> {
    using type = int;
};

template<typename T>
auto ζ(T&& x) -> decltype(std::forward<T>(x), void()) {}

template<int... Ns>
struct Σ;

template<int N, int... Ns>
struct Σ<N, Ns...> : Σ<Ns...> {};

template<>
struct Σ<> {};

template<typename T>
struct Λ {
    template<typename U>
    struct rebind {
        using other = Λ<U>;
    };
};

template<typename T>
typename T::template rebind<T const volatile*>::other&& κ;

int (*(*(**Ξ[])(void))[3])(double, char**);

struct M {
    int (*f)(int);
};

int (* (M::*μ)(double) )[10];

decltype(auto) (((*&*(&cout)))) << "hello\n";

template<typename T, typename = void>
struct enable_if_hell {};

template<typename T>
struct enable_if_hell<T, decltype(void(sizeof(T)))> {};

template<typename T>
auto sfinae(T t) -> decltype(t(), void()) {}

auto λ = [](auto&&... xs){
    return (... + std::forward<decltype(xs)>(xs));
};

int operator+(int a, int b) { return a ^ b; }

template<typename T>
struct recursive_madness {
    recursive_madness<T>* self;
};

template<int N>
struct tower : tower<N-1> {
    static constexpr int value = N;
};

template<>
struct tower<0> {
    static constexpr int value = 0;
};

int (*(&Ωmega())[])(int,int);

template<typename T>
using nightmare = typename T::template rebind<
    typename T::template rebind<T*>::other*
>::other;

template<typename T>
struct brain_melter {
    using type = nightmare<nightmare<T>>;
};

template<typename T>
void chaos(T&& t) {
    chaos(std::forward<T>(t));
}

int main() {
    volatile int x = 0;
    int y = (x+++++x);
    int z = y+++ ++y;
    cout << z << endl;

    int (*(*f(int))(double))[5];

    auto insane = [&](auto&& self, int n) -> int {
        return n ? n * self(self, n-1) : 1;
    };

    cout << insane(insane, 5) << endl;

    Φ<50> doom;
    Σ<1,2,3,4,5,6,7,8,9> despair;

    λ(1,2,3,4,5);

    return 0;
}