| .. Algorithms/Transformation Algorithms//remove |60 |
| |
| remove |
| ====== |
| |
| Synopsis |
| -------- |
| |
| .. parsed-literal:: |
| |
| template< |
| typename Sequence |
| , typename T |
| , typename In = |unspecified| |
| > |
| struct remove |
| { |
| typedef |unspecified| type; |
| }; |
| |
| |
| Description |
| ----------- |
| |
| Returns a new sequence that contains all elements from |begin/end<Sequence>| |
| range except those that are identical to ``T``. |
| |
| .. Returns a copy of the original sequence with all elements identical to ``T`` |
| removed. |
| |
| |transformation algorithm disclaimer| |
| |
| |
| Header |
| ------ |
| |
| .. parsed-literal:: |
| |
| #include <boost/mpl/remove.hpp> |
| |
| |
| Model of |
| -------- |
| |
| |Reversible Algorithm| |
| |
| |
| Parameters |
| ---------- |
| |
| +---------------+-----------------------------------+-------------------------------+ |
| | Parameter | Requirement | Description | |
| +===============+===================================+===============================+ |
| | ``Sequence`` | |Forward Sequence| | An original sequence. | |
| +---------------+-----------------------------------+-------------------------------+ |
| | ``T`` | Any type | A type to be removed. | |
| +---------------+-----------------------------------+-------------------------------+ |
| | ``In`` | |Inserter| | An inserter. | |
| +---------------+-----------------------------------+-------------------------------+ |
| |
| |
| Expression semantics |
| -------------------- |
| |
| |Semantics disclaimer...| |Reversible Algorithm|. |
| |
| For any |Forward Sequence| ``s``, an |Inserter| ``in``, and arbitrary type ``x``: |
| |
| |
| .. parsed-literal:: |
| |
| typedef remove<s,x,in>::type r; |
| |
| :Return type: |
| A type. |
| |
| :Semantics: |
| Equivalent to |
| |
| .. parsed-literal:: |
| |
| typedef remove_if< s,is_same<_,x>,in >::type r; |
| |
| |
| Complexity |
| ---------- |
| |
| Linear. Performs exactly ``size<s>::value`` comparisons for equality, and at |
| most ``size<s>::value`` insertions. |
| |
| |
| Example |
| ------- |
| |
| .. parsed-literal:: |
| |
| typedef vector<int,float,char,float,float,double>::type types; |
| typedef remove< types,float >::type result; |
| |
| BOOST_MPL_ASSERT(( equal< result, vector<int,char,double> > )); |
| |
| |
| See also |
| -------- |
| |
| |Transformation Algorithms|, |Reversible Algorithm|, |reverse_remove|, |remove_if|, |copy|, |replace| |
| |
| |
| .. 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) |
