Mercurial > hg > vamp-build-and-test
comparison DEPENDENCIES/generic/include/boost/mpl/eval_if.hpp @ 16:2665513ce2d3
Add boost headers
author | Chris Cannam |
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date | Tue, 05 Aug 2014 11:11:38 +0100 |
parents | |
children | c530137014c0 |
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15:663ca0da4350 | 16:2665513ce2d3 |
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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 |