Golang's defer feature for your C++ functions.

defer-frame.hpp

#pragma once

#include <functional>
#include <vector>
#include <algorithm>

class defer_frame {
  public:
    using function = std::function<void(void)>;

  private:
    std::vector<function> m_funcs;

  public:
    ~defer_frame() {
      std::for_each(m_funcs.rbegin(), m_funcs.rend(), [](auto &f) {
        f();
      });
    }

    void defer(function fn) {
      m_funcs.push_back(fn);
    }
};

example.cpp

#include <iostream>
#include "defer-frame.hpp"

int main() {
  defer_frame _;
  
  auto val = create_resource();
  if (val == nullptr) {
    std::cerr << "ERROR" << std::endl;
    return 1;
  }
  _.defer([&]() { destroy_resource(val); });
  
  auto val2 = create_resource();
  if (val2 == nullptr) {
    std::cerr << "ERROR" << std::endl;
    return 1;
  }
  _.defer([&]() { destroy_resource(val2); });
  
  do_something(val, val2);
  
  return 0;
}