boost_scope_exit_all.cxx

#include <iostream>
#include <boost/scope_exit.hpp>

// test scope 1
auto main() -> int
{
  BOOST_SCOPE_EXIT_ALL()
  { std::cerr << "scope 1 exit 1\n"; };
  
  BOOST_SCOPE_EXIT_ALL()
  { std::cerr << "scope 1 exit 2\n"; };
  
  // test scope 2
  {
    auto s2a = new double(1.23);
    
    BOOST_SCOPE_EXIT_ALL(s2a)
    { std::cerr << "scope 2 exit 1 with delete (=,s2a)\n"; delete s2a; };
    
    auto s2b = 0;
    
    BOOST_SCOPE_EXIT_ALL(&s2b)
    { std::cerr << "scope 2 exit 2 with ++ (&,s2b): " << ++s2b << "\n"; };
    
    BOOST_SCOPE_EXIT_ALL(&s2b)
    { std::cerr << "scope 2 exit 3 with ++ (&,s2b): " << ++s2b << "\n"; };
  }
  
  BOOST_SCOPE_EXIT_ALL()
  { std::cerr << "scope 1 exit 3\n"; };
  
}

result

scope 2 exit 3 with ++ (&,s2b): 1
scope 2 exit 2 with ++ (&,s2b): 2
scope 2 exit 1 with delete (=,s2a)
scope 1 exit 3
scope 1 exit 2
scope 1 exit 1