placeholders.hpp

boost库提供标准的C++ API 配合dev c++使用,功能更加强大

// preprocessed version of 'boost/mpl/aux_/config/use_preprocessed.hpp' header
// see the original for copyright information

namespace boost {
namespace mpl {

typedef arg< -1 > _;

namespace placeholders {
using boost::mpl::_;
}

// agurt, 17/mar/02: one more placeholder for the last 'apply#' 
// specialization

typedef arg<1> _1;

namespace placeholders {
using boost::mpl::_1;
}

typedef arg<2> _2;

namespace placeholders {
using boost::mpl::_2;
}

typedef arg<3> _3;

namespace placeholders {
using boost::mpl::_3;
}

typedef arg<4> _4;

namespace placeholders {
using boost::mpl::_4;
}

typedef arg<5> _5;

namespace placeholders {
using boost::mpl::_5;
}

typedef arg<6> _6;

namespace placeholders {
using boost::mpl::_6;
}

} // namespace mpl
} // namespace boost