comparison DEPENDENCIES/generic/include/boost/mpl/eval_if.hpp @ 16:2665513ce2d3

Add boost headers
author Chris Cannam
date Tue, 05 Aug 2014 11:11:38 +0100
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children c530137014c0
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15:663ca0da4350 16:2665513ce2d3
1
2 #ifndef BOOST_MPL_EVAL_IF_HPP_INCLUDED
3 #define BOOST_MPL_EVAL_IF_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: eval_if.hpp 61921 2010-05-11 21:33:24Z neilgroves $
14 // $Date: 2010-05-11 14:33:24 -0700 (Tue, 11 May 2010) $
15 // $Revision: 61921 $
16
17 #include <boost/mpl/if.hpp>
18 #include <boost/mpl/aux_/na_spec.hpp>
19 #include <boost/mpl/aux_/lambda_support.hpp>
20 #include <boost/mpl/aux_/config/msvc.hpp>
21 #include <boost/mpl/aux_/config/gcc.hpp>
22 #include <boost/mpl/aux_/config/workaround.hpp>
23
24 namespace boost { namespace mpl {
25
26 template<
27 typename BOOST_MPL_AUX_NA_PARAM(C)
28 , typename BOOST_MPL_AUX_NA_PARAM(F1)
29 , typename BOOST_MPL_AUX_NA_PARAM(F2)
30 >
31 struct eval_if
32 #if BOOST_WORKAROUND(BOOST_MSVC, <= 1300) \
33 || ( BOOST_WORKAROUND(BOOST_MPL_CFG_GCC, >= 0x0300) \
34 && BOOST_WORKAROUND(BOOST_MPL_CFG_GCC, BOOST_TESTED_AT(0x0304)) \
35 )
36 {
37 typedef typename if_<C,F1,F2>::type f_;
38 typedef typename f_::type type;
39 #else
40 : if_<C,F1,F2>::type
41 {
42 #endif
43 BOOST_MPL_AUX_LAMBDA_SUPPORT(3,eval_if,(C,F1,F2))
44 };
45
46 // (almost) copy & paste in order to save one more
47 // recursively nested template instantiation to user
48 template<
49 bool C
50 , typename F1
51 , typename F2
52 >
53 struct eval_if_c
54 #if BOOST_WORKAROUND(BOOST_MSVC, <= 1300) \
55 || ( BOOST_WORKAROUND(BOOST_MPL_CFG_GCC, >= 0x0300) \
56 && BOOST_WORKAROUND(BOOST_MPL_CFG_GCC, BOOST_TESTED_AT(0x0304)) \
57 )
58 {
59 typedef typename if_c<C,F1,F2>::type f_;
60 typedef typename f_::type type;
61 #else
62 : if_c<C,F1,F2>::type
63 {
64 #endif
65 };
66
67 BOOST_MPL_AUX_NA_SPEC(3, eval_if)
68
69 }}
70
71 #endif // BOOST_MPL_EVAL_IF_HPP_INCLUDED