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1 |
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2 #ifndef BOOST_MPL_REPLACE_IF_HPP_INCLUDED |
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3 #define BOOST_MPL_REPLACE_IF_HPP_INCLUDED |
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4 |
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5 // Copyright Aleksey Gurtovoy 2000-2004 |
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6 // Copyright John R. Bandela 2000-2002 |
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7 // Copyright David Abrahams 2003-2004 |
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8 // |
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9 // Distributed under the Boost Software License, Version 1.0. |
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10 // (See accompanying file LICENSE_1_0.txt or copy at |
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11 // http://www.boost.org/LICENSE_1_0.txt) |
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12 // |
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13 // See http://www.boost.org/libs/mpl for documentation. |
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14 |
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15 // $Source: /cvsroot/boost/boost/boost/mpl/replace_if.hpp,v $ |
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16 // $Date: 2004/11/28 01:57:09 $ |
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17 // $Revision: 1.7 $ |
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18 |
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19 #include <boost/mpl/transform.hpp> |
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20 #include <boost/mpl/apply.hpp> |
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21 #include <boost/mpl/if.hpp> |
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22 #include <boost/mpl/aux_/inserter_algorithm.hpp> |
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23 #include <boost/mpl/aux_/config/forwarding.hpp> |
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24 |
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25 namespace boost { namespace mpl { |
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26 |
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27 namespace aux { |
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28 |
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29 template< typename Predicate, typename T > |
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30 struct replace_if_op |
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31 { |
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32 template< typename U > struct apply |
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33 #if !defined(BOOST_MPL_CFG_NO_NESTED_FORWARDING) |
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34 : if_< |
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35 typename apply1<Predicate,U>::type |
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36 , T |
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37 , U |
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38 > |
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39 { |
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40 #else |
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41 { |
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42 typedef typename if_< |
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43 typename apply1<Predicate,U>::type |
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44 , T |
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45 , U |
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46 >::type type; |
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47 #endif |
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48 }; |
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49 }; |
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50 |
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51 |
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52 template< |
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53 typename Sequence |
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54 , typename Predicate |
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55 , typename T |
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56 , typename Inserter |
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57 > |
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58 struct replace_if_impl |
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59 : transform1_impl< |
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60 Sequence |
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61 , protect< aux::replace_if_op<Predicate,T> > |
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62 , Inserter |
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63 > |
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64 { |
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65 }; |
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66 |
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67 template< |
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68 typename Sequence |
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69 , typename Predicate |
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70 , typename T |
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71 , typename Inserter |
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72 > |
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73 struct reverse_replace_if_impl |
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74 : reverse_transform1_impl< |
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75 Sequence |
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76 , protect< aux::replace_if_op<Predicate,T> > |
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77 , Inserter |
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78 > |
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79 { |
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80 }; |
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81 |
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82 } // namespace aux |
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83 |
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84 BOOST_MPL_AUX_INSERTER_ALGORITHM_DEF(4, replace_if) |
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85 |
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86 }} |
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87 |
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88 #endif // BOOST_MPL_REPLACE_IF_HPP_INCLUDED |