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/usr/include/boost/io/detail/ostream_guard.hpp
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/* Copyright 2019-2020 Glen Joseph Fernandes (glenjofe@gmail.com) Distributed under the Boost Software License, Version 1.0. (http://www.boost.org/LICENSE_1_0.txt) */ #ifndef BOOST_IO_DETAIL_OSTREAM_GUARD_HPP #define BOOST_IO_DETAIL_OSTREAM_GUARD_HPP #include <boost/config.hpp> #include <iosfwd> namespace boost { namespace io { namespace detail { template<class Char, class Traits> class ostream_guard { public: explicit ostream_guard(std::basic_ostream<Char, Traits>& os) BOOST_NOEXCEPT : os_(&os) { } ~ostream_guard() BOOST_NOEXCEPT_IF(false) { if (os_) { os_->setstate(std::basic_ostream<Char, Traits>::badbit); } } void release() BOOST_NOEXCEPT { os_ = 0; } private: ostream_guard(const ostream_guard&); ostream_guard& operator=(const ostream_guard&); std::basic_ostream<Char, Traits>* os_; }; } /* detail */ } /* io */ } /* boost */ #endif
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