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Shut up compiler warning

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Georg Baum 2015-05-16 14:05:29 +02:00
parent 673217593e
commit f728257f26
1 changed files with 1 additions and 1 deletions
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2
boost/boost/optional/optional.hpp
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@ -1251,7 +1251,7 @@ get_pointer ( optional<T>& opt )
// The following declaration prevents a bug where operator safe-bool is used upon streaming optional object if you forget the IO header.
template<class CharType, class CharTrait>
std::basic_ostream<CharType, CharTrait>&
operator<<(std::basic_ostream<CharType, CharTrait>& out, optional_detail::optional_tag const& v)
operator<<(std::basic_ostream<CharType, CharTrait>&, optional_detail::optional_tag const&)
{
BOOST_STATIC_ASSERT_MSG(sizeof(CharType) == 0, "If you want to output boost::optional, include header <boost/optional/optional_io.hpp>");
}