3rdParty/boost/1.78.0/libs/mpl/doc/refmanual/reverse-replace-if.html
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template<
typename Sequence
, typename Pred
, typename In =_unspecified_>
struct[reverse\_replace\_if](./reverse-replace-if.html){
typedef_unspecified_type;
};
Returns a reversed copy of the original sequence where every type that satisfies the predicate Pred has been replaced with NewType.
[Note: This wording applies to a no-inserter version(s) of the algorithm. See the Expression semantics subsection for a precise specification of the algorithm's details in all cases — end note]
#include <[boost/mpl/replace\_if.hpp](../../../../boost/mpl/replace_if.hpp)>
| Parameter | Requirement | Description |
|---|---|---|
| Sequence | Forward Sequence | An original sequence. |
| Pred | Unary Lambda Expression | A replacement condition. |
| NewType | Any type | A type to replace with. |
| In | Inserter | An inserter. |
The semantics of an expression are defined only where they differ from, or are not defined in Reversible Algorithm.
For any Forward Sequence s, an unary Lambda Expression pred, an Inserter in, and arbitrary type x:
typedef[reverse\_replace\_if](./reverse-replace-if.html)<s,pred,x,in>::type r;
| Return type: |
A type.
| | Semantics: |
Equivalent to
typedef[lambda](./lambda.html)<pred>::type p;
typedef[reverse\_transform](./reverse-transform.html)< s,[if\_](./if.html)< apply_wrap1<p,[\_1](./placeholders.html)>,x,[\_1](./placeholders.html)>, in >::type r;
|
Linear. Performs exactly size<s>::value applications of pred, and at most size<s>::value insertions.
typedef[vector\_c](./vector-c.html)<int,1,4,5,2,7,5,3,5> numbers;
typedef[vector\_c](./vector-c.html)<int,1,4,0,2,0,0,3,0> expected;
typedef[reverse\_replace\_if](./reverse-replace-if.html)<
numbers
,[greater](./greater.html)< _,[int\_](./int.html)<4> >
,[int\_](./int.html)<0>
,[front\_inserter](./front-inserter.html)<[vector](./vector.html)<> >
>::type result;[BOOST\_MPL\_ASSERT](./assert.html)(([equal](./equal.html)< result,expected,[equal\_to](./equal-to.html)<_,_> > ));
Transformation Algorithms, Reversible Algorithm, replace_if, reverse_replace, remove_if, transform
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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) |