projects / ceph.git / blame
| Commit | Line | Data |
|---|---|---|
| 7c673cae FG |
1 | .. Sequences/Intrinsic Metafunctions//insert_range |
| 2 | ||
| 3 | insert_range | |
| 4 | ============ | |
| 5 | ||
| 6 | Synopsis | |
| 7 | -------- | |
| 8 | ||
| 9 | .. parsed-literal:: | |
| 10 | ||
| 11 | template< | |
| 12 | typename Sequence | |
| 13 | , typename Pos | |
| 14 | , typename Range | |
| 15 | > | |
| 16 | struct insert_range | |
| 17 | { | |
| 18 | typedef |unspecified| type; | |
| 19 | }; | |
| 20 | ||
| 21 | ||
| 22 | ||
| 23 | Description | |
| 24 | ----------- | |
| 25 | ||
| 26 | ``insert_range`` performs an insertion of a range of elements at an arbitrary position in | |
| 27 | the sequence. | |
| 28 | ||
| 29 | Header | |
| 30 | ------ | |
| 31 | ||
| 32 | .. parsed-literal:: | |
| 33 | ||
| 34 | #include <boost/mpl/insert_range.hpp> | |
| 35 | ||
| 36 | ||
| 37 | Model of | |
| 38 | -------- | |
| 39 | ||
| 40 | |Tag Dispatched Metafunction| | |
| 41 | ||
| 42 | ||
| 43 | Parameters | |
| 44 | ---------- | |
| 45 | ||
| 46 | +---------------+-----------------------------------+-----------------------------------------------+ | |
| 47 | | Parameter | Requirement | Description | | |
| 48 | +===============+===================================+===============================================+ | |
| 49 | | ``Sequence`` | |Extensible Sequence| or | A sequence to insert into. | | |
| 50 | | | |Extensible Associative Sequence| | | | |
| 51 | +---------------+-----------------------------------+-----------------------------------------------+ | |
| 52 | | ``Pos`` | |Forward Iterator| | An iterator in ``Sequence`` specifying the | | |
| 53 | | | | insertion position. | | |
| 54 | +---------------+-----------------------------------+-----------------------------------------------+ | |
| 55 | | ``Range`` | |Forward Sequence| | The range of elements to be inserted. | | |
| 56 | +---------------+-----------------------------------+-----------------------------------------------+ | |
| 57 | ||
| 58 | ||
| 59 | Expression semantics | |
| 60 | -------------------- | |
| 61 | ||
| 62 | For any |Extensible Sequence| ``s``, iterator ``pos`` in ``s``, and |Forward Sequence| ``range``: | |
| 63 | ||
| 64 | .. parsed-literal:: | |
| 65 | ||
| 66 | typedef insert<s,pos,range>::type r; | |
| 67 | ||
| 68 | :Return type: | |
| 69 | |Extensible Sequence|. | |
| 70 | ||
| 71 | :Precondition: | |
| 72 | ``pos`` is an iterator into ``s``. | |
| 73 | ||
| 74 | :Semantics: | |
| 75 | ``r`` is a sequence, |concept-identical| to ``s``, of the following elements: | |
| 76 | [``begin<s>::type``, ``pos``), [``begin<r>::type``, ``end<r>::type``), | |
| 77 | [``pos``, ``end<s>::type``). | |
| 78 | ||
| 79 | :Postcondition: | |
| 80 | The relative order of the elements in ``r`` is the same as in ``s``; | |
| 81 | ||
| 82 | .. parsed-literal:: | |
| 83 | ||
| 84 | size<r>::value == size<s>::value + size<range>::value | |
| 85 | ||
| 86 | ||
| 87 | Complexity | |
| 88 | ---------- | |
| 89 | ||
| 90 | Sequence dependent. Quadratic in the worst case, linear at best; see the particular | |
| 91 | sequence class' specification for details. | |
| 92 | ||
| 93 | ||
| 94 | Example | |
| 95 | ------- | |
| 96 | ||
| 97 | .. parsed-literal:: | |
| 98 | ||
| 99 | typedef vector_c<int,0,1,7,8,9> numbers; | |
| 100 | typedef find< numbers,integral_c<int,7> >::type pos; | |
| 101 | typedef insert_range< numbers,pos,range_c<int,2,7> >::type range; | |
| 102 | ||
| 103 | BOOST_MPL_ASSERT_RELATION( size<range>::value, ==, 10 ); | |
| 104 | BOOST_MPL_ASSERT(( equal< range,range_c<int,0,10> > )); | |
| 105 | ||
| 106 | typedef insert_range< | |
| 107 | list\ ``0``\ <> | |
| 108 | , end< list\ ``0``\ <> >::type | |
| 109 | , list<int> | |
| 110 | >::type result2; | |
| 111 | ||
| 112 | BOOST_MPL_ASSERT_RELATION( size<result2>::value, ==, 1 ); | |
| 113 | ||
| 114 | ||
| 115 | See also | |
| 116 | -------- | |
| 117 | ||
| 118 | |Extensible Sequence|, |insert|, |push_front|, |push_back|, |erase| | |
| 119 | ||
| 120 | ||
| 121 |