diff -r 000000000000 -r e4d67989cc36 ossrv_pub/boost_apis/boost/iterator/interoperable.hpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/ossrv_pub/boost_apis/boost/iterator/interoperable.hpp Tue Feb 02 02:01:42 2010 +0200 @@ -0,0 +1,50 @@ +// (C) Copyright David Abrahams 2002. +// (C) Copyright Jeremy Siek 2002. +// (C) Copyright Thomas Witt 2002. +// Distributed under the Boost Software License, Version 1.0. (See +// accompanying file LICENSE_1_0.txt or copy at +// http://www.boost.org/LICENSE_1_0.txt) +#ifndef BOOST_INTEROPERABLE_23022003THW_HPP +# define BOOST_INTEROPERABLE_23022003THW_HPP + +# include +# include + +# include + +# include // must appear last + +namespace boost +{ + + // + // Meta function that determines whether two + // iterator types are considered interoperable. + // + // Two iterator types A,B are considered interoperable if either + // A is convertible to B or vice versa. + // This interoperability definition is in sync with the + // standards requirements on constant/mutable container + // iterators (23.1 [lib.container.requirements]). + // + // For compilers that don't support is_convertible + // is_interoperable gives false positives. See comments + // on operator implementation for consequences. + // + template + struct is_interoperable +# ifdef BOOST_NO_STRICT_ITERATOR_INTEROPERABILITY + : mpl::true_ +# else + : mpl::or_< + is_convertible< A, B > + , is_convertible< B, A > > +# endif + { + }; + +} // namespace boost + +# include + +#endif // BOOST_INTEROPERABLE_23022003THW_HPP