Fixed behaviour in case of invalid input

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