projects / ceph.git / blame
| Commit | Line | Data |
|---|---|---|
| 7c673cae FG |
1 | .. Algorithms/Inserters//front_inserter |
| 2 | ||
| 3 | front_inserter | |
| 4 | ============== | |
| 5 | ||
| 6 | Synopsis | |
| 7 | -------- | |
| 8 | ||
| 9 | .. parsed-literal:: | |
| 10 | ||
| 11 | template< | |
| 12 | typename Seq | |
| 13 | > | |
| 14 | struct front_inserter | |
| 15 | { | |
| 16 | // |unspecified| | |
| 17 | // |...| | |
| 18 | }; | |
| 19 | ||
| 20 | ||
| 21 | Description | |
| 22 | ----------- | |
| 23 | ||
| 24 | Inserts elements at the beginning of the sequence. | |
| 25 | ||
| 26 | Header | |
| 27 | ------ | |
| 28 | ||
| 29 | .. parsed-literal:: | |
| 30 | ||
| 31 | #include <boost/mpl/front_inserter.hpp> | |
| 32 | ||
| 33 | Model of | |
| 34 | -------- | |
| 35 | ||
| 36 | |Inserter| | |
| 37 | ||
| 38 | ||
| 39 | Parameters | |
| 40 | ---------- | |
| 41 | ||
| 42 | +---------------+-------------------------------+---------------------------------------+ | |
| 43 | | Parameter | Requirement | Description | | |
| 44 | +===============+===============================+=======================================+ | |
| 45 | | ``Seq`` | |Front Extensible Sequence| | A sequence to bind the inserter to. | | |
| 46 | +---------------+-------------------------------+---------------------------------------+ | |
| 47 | ||
| 48 | ||
| 49 | Expression semantics | |
| 50 | -------------------- | |
| 51 | ||
| 52 | |Semantics disclaimer...| |Inserter|. | |
| 53 | ||
| 54 | For any |Front Extensible Sequence| ``s``: | |
| 55 | ||
| 56 | +---------------------------+-------------------------------------------------------+ | |
| 57 | | Expression | Semantics | | |
| 58 | +===========================+=======================================================+ | |
| 59 | | ``front_inserter<s>`` | An |Inserter| ``in``, equivalent to | | |
| 60 | | | | | |
| 61 | | | .. parsed-literal:: | | |
| 62 | | | | | |
| 63 | | | struct in : inserter<s,push_front<_1,_2> > {}; | | |
| 64 | +---------------------------+-------------------------------------------------------+ | |
| 65 | ||
| 66 | ||
| 67 | Complexity | |
| 68 | ---------- | |
| 69 | ||
| 70 | Amortized constant time. | |
| 71 | ||
| 72 | ||
| 73 | Example | |
| 74 | ------- | |
| 75 | ||
| 76 | .. parsed-literal:: | |
| 77 | ||
| 78 | typedef reverse_copy< | |
| 79 | range_c<int,0,5> | |
| 80 | , front_inserter< vector_c<int,5,6,7,8,9> > | |
| 81 | >::type range; | |
| 82 | ||
| 83 | BOOST_MPL_ASSERT(( equal< range, range_c<int,0,10> > )); | |
| 84 | ||
| 85 | ||
| 86 | See also | |
| 87 | -------- | |
| 88 | ||
| 89 | |Algorithms|, |Inserter|, |Reversible Algorithm|, |[inserter]|, |back_inserter|, |push_front| | |
| 90 | ||
| 91 | ||
| 92 |