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/extlibs/Boost/include/boost/mpl/O1_size.hpp

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C++ Header | 40 lines | 20 code | 9 blank | 11 comment | 0 complexity | 8bdcf3a35d7962b48f3b11bb0642c957 MD5 | raw file
 1
 2#ifndef BOOST_MPL_O1_SIZE_HPP_INCLUDED
 3#define BOOST_MPL_O1_SIZE_HPP_INCLUDED
 4
 5// Copyright Aleksey Gurtovoy 2000-2004
 6//
 7// Distributed under the Boost Software License, Version 1.0. 
 8// (See accompanying file LICENSE_1_0.txt or copy at 
 9// http://www.boost.org/LICENSE_1_0.txt)
10//
11// See http://www.boost.org/libs/mpl for documentation.
12
13// $Id: O1_size.hpp 49267 2008-10-11 06:19:02Z agurtovoy $
14// $Date: 2008-10-11 02:19:02 -0400 (Sat, 11 Oct 2008) $
15// $Revision: 49267 $
16
17#include <boost/mpl/O1_size_fwd.hpp>
18#include <boost/mpl/sequence_tag.hpp>
19#include <boost/mpl/aux_/O1_size_impl.hpp>
20#include <boost/mpl/aux_/na_spec.hpp>
21#include <boost/mpl/aux_/lambda_support.hpp>
22
23namespace boost { namespace mpl {
24
25// returns sequence size if it's an O(1) operation; otherwise returns -1
26template<
27      typename BOOST_MPL_AUX_NA_PARAM(Sequence)
28    >
29struct O1_size
30    : O1_size_impl< typename sequence_tag<Sequence>::type >
31        ::template apply< Sequence >
32{
33    BOOST_MPL_AUX_LAMBDA_SUPPORT(1, O1_size, (Sequence))
34};
35
36BOOST_MPL_AUX_NA_SPEC(1, O1_size)
37
38}}
39
40#endif // BOOST_MPL_O1_SIZE_HPP_INCLUDED