forked from boostorg/mpl
65 lines
1.8 KiB
C++
65 lines
1.8 KiB
C++
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#ifndef BOOST_MPL_SHIFT_LEFT_HPP_INCLUDED
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#define BOOST_MPL_SHIFT_LEFT_HPP_INCLUDED
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// + file: boost/mpl/shift_left.hpp
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// + last modified: 25/feb/03
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// Copyright (c) 2000-03
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// Aleksey Gurtovoy, Jaap Suter
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//
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// Permission to use, copy, modify, distribute and sell this software
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// and its documentation for any purpose is hereby granted without fee,
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// provided that the above copyright notice appears in all copies and
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// that both the copyright notice and this permission notice appear in
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// supporting documentation. No representations are made about the
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// suitability of this software for any purpose. It is provided "as is"
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// without express or implied warranty.
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//
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// See http://www.boost.org/libs/mpl for documentation.
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#include "boost/mpl/integral_c.hpp"
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#include "boost/mpl/aux_/typeof.hpp"
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#include "boost/mpl/aux_/value_wknd.hpp"
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#include "boost/mpl/aux_/void_spec.hpp"
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#include "boost/mpl/aux_/lambda_support.hpp"
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#include "boost/config.hpp"
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namespace boost {
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namespace mpl {
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template<
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typename T, T N, typename ShiftT, ShiftT Shift
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>
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struct shift_left_c
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{
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BOOST_STATIC_CONSTANT(T, value = (N << Shift));
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#if !defined(__BORLANDC__)
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typedef integral_c<T,value> type;
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#else
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typedef integral_c<T,(N << Shift)> type;
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#endif
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};
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template<
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typename BOOST_MPL_AUX_VOID_SPEC_PARAM(T)
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, typename BOOST_MPL_AUX_VOID_SPEC_PARAM(Shift)
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>
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struct shift_left
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: shift_left_c<
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BOOST_MPL_AUX_TYPEOF(T, T::value)
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, BOOST_MPL_AUX_MSVC_VALUE_WKND(T)::value
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, BOOST_MPL_AUX_TYPEOF(Shift, Shift::value)
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, BOOST_MPL_AUX_MSVC_VALUE_WKND(Shift)::value
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>
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{
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BOOST_MPL_AUX_LAMBDA_SUPPORT(2, shift_left, (T,Shift))
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};
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BOOST_MPL_AUX_VOID_SPEC(2,shift_left)
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} // namespace mpl
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} // namespace boost
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#endif // BOOST_MPL_SHIFT_LEFT_HPP_INCLUDED
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