| .. Sequences/Intrinsic Metafunctions//insert_range |
| |
| insert_range |
| ============ |
| |
| Synopsis |
| -------- |
| |
| .. parsed-literal:: |
| |
| template< |
| typename Sequence |
| , typename Pos |
| , typename Range |
| > |
| struct insert_range |
| { |
| typedef |unspecified| type; |
| }; |
| |
| |
| |
| Description |
| ----------- |
| |
| ``insert_range`` performs an insertion of a range of elements at an arbitrary position in |
| the sequence. |
| |
| Header |
| ------ |
| |
| .. parsed-literal:: |
| |
| #include <boost/mpl/insert_range.hpp> |
| |
| |
| Model of |
| -------- |
| |
| |Tag Dispatched Metafunction| |
| |
| |
| Parameters |
| ---------- |
| |
| +---------------+-----------------------------------+-----------------------------------------------+ |
| | Parameter | Requirement | Description | |
| +===============+===================================+===============================================+ |
| | ``Sequence`` | |Extensible Sequence| or | A sequence to insert into. | |
| | | |Extensible Associative Sequence| | | |
| +---------------+-----------------------------------+-----------------------------------------------+ |
| | ``Pos`` | |Forward Iterator| | An iterator in ``Sequence`` specifying the | |
| | | | insertion position. | |
| +---------------+-----------------------------------+-----------------------------------------------+ |
| | ``Range`` | |Forward Sequence| | The range of elements to be inserted. | |
| +---------------+-----------------------------------+-----------------------------------------------+ |
| |
| |
| Expression semantics |
| -------------------- |
| |
| For any |Extensible Sequence| ``s``, iterator ``pos`` in ``s``, and |Forward Sequence| ``range``: |
| |
| .. parsed-literal:: |
| |
| typedef insert<s,pos,range>::type r; |
| |
| :Return type: |
| |Extensible Sequence|. |
| |
| :Precondition: |
| ``pos`` is an iterator into ``s``. |
| |
| :Semantics: |
| ``r`` is a sequence, |concept-identical| to ``s``, of the following elements: |
| [``begin<s>::type``, ``pos``), [``begin<r>::type``, ``end<r>::type``), |
| [``pos``, ``end<s>::type``). |
| |
| :Postcondition: |
| The relative order of the elements in ``r`` is the same as in ``s``; |
| |
| .. parsed-literal:: |
| |
| size<r>::value == size<s>::value + size<range>::value |
| |
| |
| Complexity |
| ---------- |
| |
| Sequence dependent. Quadratic in the worst case, linear at best; see the particular |
| sequence class' specification for details. |
| |
| |
| Example |
| ------- |
| |
| .. parsed-literal:: |
| |
| typedef vector_c<int,0,1,7,8,9> numbers; |
| typedef find< numbers,integral_c<int,7> >::type pos; |
| typedef insert_range< numbers,pos,range_c<int,2,7> >::type range; |
| |
| BOOST_MPL_ASSERT_RELATION( size<range>::value, ==, 10 ); |
| BOOST_MPL_ASSERT(( equal< range,range_c<int,0,10> > )); |
| |
| typedef insert_range< |
| list\ ``0``\ <> |
| , end< list\ ``0``\ <> >::type |
| , list<int> |
| >::type result2; |
| |
| BOOST_MPL_ASSERT_RELATION( size<result2>::value, ==, 1 ); |
| |
| |
| See also |
| -------- |
| |
| |Extensible Sequence|, |insert|, |push_front|, |push_back|, |erase| |
| |
| |
| .. copyright:: Copyright © 2001-2009 Aleksey Gurtovoy and David Abrahams |
| Distributed under the Boost Software License, Version 1.0. (See accompanying |
| file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
