1.. Algorithms/Transformation Algorithms//copy |10 2 3copy 4==== 5 6Synopsis 7-------- 8 9.. parsed-literal:: 10 11 template< 12 typename Sequence 13 , typename In = |unspecified| 14 > 15 struct copy 16 { 17 typedef |unspecified| type; 18 }; 19 20 21 22Description 23----------- 24 25Returns a copy of the original sequence. 26 27|transformation algorithm disclaimer| 28 29 30Header 31------ 32 33.. parsed-literal:: 34 35 #include <boost/mpl/copy.hpp> 36 37 38Model of 39-------- 40 41|Reversible Algorithm| 42 43 44Parameters 45---------- 46 47+---------------+---------------------------+-------------------------------+ 48| Parameter | Requirement | Description | 49+===============+===========================+===============================+ 50| ``Sequence`` | |Forward Sequence| | A sequence to copy. | 51+---------------+---------------------------+-------------------------------+ 52| ``In`` | |Inserter| | An inserter. | 53+---------------+---------------------------+-------------------------------+ 54 55 56Expression semantics 57-------------------- 58 59|Semantics disclaimer...| |Reversible Algorithm|. 60 61For any |Forward Sequence| ``s``, and an |Inserter| ``in``: 62 63.. parsed-literal:: 64 65 typedef copy<s,in>::type r; 66 67:Return type: 68 A type. 69 70:Semantics: 71 Equivalent to 72 73 .. parsed-literal:: 74 75 typedef fold< s,in::state,in::operation >::type r; 76 77 78 79Complexity 80---------- 81 82Linear. Exactly ``size<s>::value`` applications of ``in::operation``. 83 84 85Example 86------- 87 88.. parsed-literal:: 89 90 typedef vector_c<int,0,1,2,3,4,5,6,7,8,9> numbers; 91 typedef copy< 92 range_c<int,10,20> 93 , back_inserter< numbers > 94 >::type result; 95 96 BOOST_MPL_ASSERT_RELATION( size<result>::value, ==, 20 ); 97 BOOST_MPL_ASSERT(( equal< result,range_c<int,0,20> > )); 98 99 100See also 101-------- 102 103|Transformation Algorithms|, |Reversible Algorithm|, |reverse_copy|, |copy_if|, |transform| 104 105 106.. copyright:: Copyright � 2001-2009 Aleksey Gurtovoy and David Abrahams 107 Distributed under the Boost Software License, Version 1.0. (See accompanying 108 file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) 109