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Fixed behaviour in case of invalid input

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[SVN r64208]
This commit is contained in:
Fernando Cacciola
2010-07-20 19:21:44 +00:00
parent c93e5a88c7
commit 8608ad1497
1 changed files with 7 additions and 2 deletions
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9
include/boost/optional/optional_io.hpp
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@ -73,9 +73,14 @@ operator>>(std::basic_istream<CharType, CharTrait>& in, optional<T>& v)
} }
else else
{ {
BOOST_ASSERT(d == '-'); if ( d != '-')
in.setstate( ios::failbit );
d = in.get(); d = in.get();
BOOST_ASSERT(d == '-');
if ( d != '-')
in.setstate( ios::failbit );
v = optional<T>() ; v = optional<T>() ;
} }
} }