52 lines
1.3 KiB
C++
52 lines
1.3 KiB
C++
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// Copyright (C) 2009-2012 Lorenzo Caminiti
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// Distributed under the Boost Software License, Version 1.0
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// (see accompanying file LICENSE_1_0.txt or a copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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// Home at http://www.boost.org/libs/local_function
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#ifndef SCOPE_EXIT_HPP_
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#define SCOPE_EXIT_HPP_
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#include <boost/local_function.hpp>
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#include <boost/local_function/detail/preprocessor/line_counter.hpp>
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#include <boost/function.hpp>
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#include <boost/preprocessor/cat.hpp>
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#include <boost/config.hpp>
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//[scope_exit_class
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struct scope_exit {
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scope_exit(boost::function<void (void)> f): f_(f) {}
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~scope_exit(void) { f_(); }
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private:
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boost::function<void (void)> f_;
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};
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//]
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// PRIVATE //
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//[scope_exit_end_macro
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#define SCOPE_EXIT_END_(id) \
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BOOST_LOCAL_FUNCTION_NAME(BOOST_PP_CAT(scope_exit_func_, id)) \
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scope_exit BOOST_PP_CAT(scope_exit_, id)( \
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BOOST_PP_CAT(scope_exit_func_, id));
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//]
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// PUBLIC //
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#ifdef BOOST_NO_CXX11_VARIADIC_MACROS
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# define SCOPE_EXIT(void_or_seq) \
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void BOOST_LOCAL_FUNCTION(void_or_seq)
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#else
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//[scope_exit_macro
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# define SCOPE_EXIT(...) \
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void BOOST_LOCAL_FUNCTION(__VA_ARGS__)
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//]
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#endif
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#define SCOPE_EXIT_END \
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SCOPE_EXIT_END_(BOOST_LOCAL_FUNCTION_DETAIL_PP_LINE_COUNTER)
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#endif // #include guard
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