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Diffstat (limited to 'libs/scope_exit/test/world_this_seq.cpp')
-rw-r--r-- | libs/scope_exit/test/world_this_seq.cpp | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/libs/scope_exit/test/world_this_seq.cpp b/libs/scope_exit/test/world_this_seq.cpp new file mode 100644 index 0000000000..6d7b7cb08c --- /dev/null +++ b/libs/scope_exit/test/world_this_seq.cpp @@ -0,0 +1,49 @@ + +// Copyright (C) 2006-2009, 2012 Alexander Nasonov +// Copyright (C) 2012 Lorenzo Caminiti +// Distributed under the Boost Software License, Version 1.0 +// (see accompanying file LICENSE_1_0.txt or a copy at +// http://www.boost.org/LICENSE_1_0.txt) +// Home at http://www.boost.org/libs/scope_exit + +#include <boost/scope_exit.hpp> +#include <boost/typeof/typeof.hpp> +#include <boost/typeof/std/vector.hpp> +#include BOOST_TYPEOF_INCREMENT_REGISTRATION_GROUP() +#include <boost/detail/lightweight_test.hpp> +#include <boost/config.hpp> +#include <vector> + +struct person {}; +BOOST_TYPEOF_REGISTER_TYPE(person) + +struct world { + void add_person(person const& a_person); + size_t population(void) const { return persons_.size(); } + +private: + std::vector<person> persons_; +}; +BOOST_TYPEOF_REGISTER_TYPE(world) + +void world::add_person(person const& a_person) { + bool commit = false; + + persons_.push_back(a_person); + BOOST_SCOPE_EXIT( (&commit) (this_) ) { + if(!commit) this_->persons_.pop_back(); + } BOOST_SCOPE_EXIT_END + + // ... + + commit = true; +} + +int main(void) { + world w; + person p; + w.add_person(p); + BOOST_TEST(w.population() == 1); + return boost::report_errors(); +} + |