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