tvl-depot/third_party/immer/example/vector/gc.cpp

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//
// immer: immutable data structures for C++
// Copyright (C) 2016, 2017, 2018 Juan Pedro Bolivar Puente
//
// This software is distributed under the Boost Software License, Version 1.0.
// See accompanying file LICENSE or copy at http://boost.org/LICENSE_1_0.txt
//
// include:example/start
#include <immer/heap/gc_heap.hpp>
#include <immer/heap/heap_policy.hpp>
#include <immer/memory_policy.hpp>
#include <immer/refcount/no_refcount_policy.hpp>
#include <immer/vector.hpp>
#include <iostream>
// declare a memory policy for using a tracing garbage collector
using gc_policy = immer::memory_policy<immer::heap_policy<immer::gc_heap>,
immer::no_refcount_policy,
immer::gc_transience_policy,
false>;
// alias the vector type so we are not concerned about memory policies
// in the places where we actually use it
template <typename T>
using my_vector = immer::vector<T, gc_policy>;
int main()
{
auto v =
my_vector<const char*>().push_back("hello, ").push_back("world!\n");
for (auto s : v)
std::cout << s;
}
// include:example/end