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< html >
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< meta http-equiv = "Content-Type" content = "text/html; charset=US-ASCII" >
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< title > nview< / title >
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< link rel = "home" href = "../../index.html" title = "Chapter 1. Fusion 2.0" >
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< link rel = "up" href = "../view.html" title = "View" >
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< body bgcolor = "white" text = "black" link = "#0000FF" vlink = "#840084" alink = "#0000FF" >
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< td align = "center" > < a href = "../../../../../../libs/libraries.htm" > Libraries< / a > < / td >
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< td align = "center" > < a href = "http://www.boost.org/users/people.html" > People< / a > < / td >
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< a accesskey = "p" href = "reverse_view.html" > < img src = "../../../../../../doc/src/images/prev.png" alt = "Prev" > < / a > < a accesskey = "u" href = "../view.html" > < img src = "../../../../../../doc/src/images/up.png" alt = "Up" > < / a > < a accesskey = "h" href = "../../index.html" > < img src = "../../../../../../doc/src/images/home.png" alt = "Home" > < / a > < a accesskey = "n" href = "repetitive_view.html" > < img src = "../../../../../../doc/src/images/next.png" alt = "Next" > < / a >
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< / div >
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< div class = "section" >
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< div class = "titlepage" > < div > < div > < h3 class = "title" >
< a name = "fusion.view.nview" > < / a > < a class = "link" href = "nview.html" title = "nview" > nview< / a >
< / h3 > < / div > < / div > < / div >
< a name = "fusion.view.nview.description" > < / a > < h5 >
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< a name = "id988015" > < / a >
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< a class = "link" href = "nview.html#fusion.view.nview.description" > Description< / a >
< / h5 >
< p >
< code class = "computeroutput" > < span class = "identifier" > nview< / span > < / code > presents a view which
iterates over a given < a class = "link" href = "../sequence.html" title = "Sequence" > Sequence< / a > in
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a specified order. An < code class = "computeroutput" > < span class = "identifier" > nview< / span > < / code >
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is constructed from an arbitrary < a class = "link" href = "../sequence.html" title = "Sequence" > Sequence< / a >
and a list of indicies specifying the elements to iterate over.
< / p >
< a name = "fusion.view.nview.header" > < / a > < h5 >
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< a name = "id988056" > < / a >
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< a class = "link" href = "nview.html#fusion.view.nview.header" > Header< / a >
< / h5 >
< pre class = "programlisting" > < span class = "preprocessor" > #include< / span > < span class = "special" > < < / span > < span class = "identifier" > boost< / span > < span class = "special" > /< / span > < span class = "identifier" > fusion< / span > < span class = "special" > /< / span > < span class = "identifier" > view< / span > < span class = "special" > /< / span > < span class = "identifier" > nview< / span > < span class = "special" > .< / span > < span class = "identifier" > hpp< / span > < span class = "special" > > < / span >
< span class = "preprocessor" > #include< / span > < span class = "special" > < < / span > < span class = "identifier" > boost< / span > < span class = "special" > /< / span > < span class = "identifier" > fusion< / span > < span class = "special" > /< / span > < span class = "identifier" > include< / span > < span class = "special" > /< / span > < span class = "identifier" > nview< / span > < span class = "special" > .< / span > < span class = "identifier" > hpp< / span > < span class = "special" > > < / span >
< / pre >
< a name = "fusion.view.nview.synopsis" > < / a > < h5 >
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< a name = "id988164" > < / a >
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< a class = "link" href = "nview.html#fusion.view.nview.synopsis" > Synopsis< / a >
< / h5 >
< pre class = "programlisting" > < span class = "keyword" > template< / span > < span class = "special" > < < / span > < span class = "keyword" > typename< / span > < span class = "identifier" > Sequence< / span > < span class = "special" > ,< / span > < span class = "keyword" > typename< / span > < span class = "identifier" > Indicies< / span > < span class = "special" > > < / span >
< span class = "keyword" > struct< / span > < span class = "identifier" > nview< / span > < span class = "special" > ;< / span >
< span class = "keyword" > template< / span > < span class = "special" > < < / span > < span class = "keyword" > typename< / span > < span class = "identifier" > Sequence< / span > < span class = "special" > ,< / span > < span class = "keyword" > int< / span > < span class = "identifier" > I1< / span > < span class = "special" > ,< / span > < span class = "keyword" > int< / span > < span class = "identifier" > I2< / span > < span class = "special" > =< / span > < span class = "special" > -< / span > < span class = "number" > 1< / span > < span class = "special" > ,< / span > < span class = "special" > ...> < / span >
< span class = "keyword" > typename< / span > < span class = "identifier" > result_of< / span > < span class = "special" > ::< / span > < span class = "identifier" > nview< / span > < span class = "special" > < < / span > < span class = "identifier" > Sequence< / span > < span class = "special" > ,< / span > < span class = "identifier" > I1< / span > < span class = "special" > ,< / span > < span class = "identifier" > I2< / span > < span class = "special" > ,< / span > < span class = "special" > ...> ::< / span > < span class = "identifier" > type< / span >
< span class = "identifier" > as_nview< / span > < span class = "special" > (< / span > < span class = "identifier" > Sequence< / span > < span class = "special" > & < / span > < span class = "identifier" > s< / span > < span class = "special" > );< / span >
< / pre >
< a name = "fusion.view.nview.template_parameters" > < / a > < h5 >
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< a name = "id988372" > < / a >
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< a class = "link" href = "nview.html#fusion.view.nview.template_parameters" > Template parameters< / a >
< / h5 >
< div class = "informaltable" > < table class = "table" >
< colgroup >
< col >
< col >
< col >
< / colgroup >
< thead > < tr >
< th >
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< p >
Parameter
< / p >
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< / th >
< th >
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< p >
Description
< / p >
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< / th >
< th >
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< p >
Default
< / p >
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< / th >
< / tr > < / thead >
< tbody >
< tr >
< td >
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< p >
< code class = "computeroutput" > < span class = "identifier" > Sequence< / span > < / code >
< / p >
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< / td >
< td >
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< p >
An arbitrary Fusion < a class = "link" href = "../sequence/concepts/forward_sequence.html" title = "Forward Sequence" > Forward
Sequence< / a >
< / p >
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< / td >
< td >
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< p >
< / p >
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< / td >
< / tr >
< tr >
< td >
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< p >
< code class = "computeroutput" > < span class = "identifier" > Indicies< / span > < / code >
< / p >
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< / td >
< td >
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< p >
A < code class = "computeroutput" > < span class = "identifier" > mpl< / span > < span class = "special" > ::< / span > < span class = "identifier" > vector_c< / span > < span class = "special" > < < / span > < span class = "keyword" > int< / span > < span class = "special" > ,< / span > < span class = "special" > ...> < / span > < / code > holding the indicies defining
the required iteration order.
< / p >
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< / td >
< td >
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< p >
< / p >
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< / td >
< / tr >
< tr >
< td >
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< p >
< code class = "computeroutput" > < span class = "identifier" > I1< / span > < / code > , < code class = "computeroutput" > < span class = "identifier" > I2< / span > < / code > , < code class = "computeroutput" > < span class = "identifier" > I3< / span > < / code > ...
< / p >
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< / td >
< td >
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< p >
A list of integers specifying the required iteration order.
< / p >
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< / td >
< td >
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< p >
< code class = "computeroutput" > < span class = "identifier" > INT_MAX< / span > < / code > for < code class = "computeroutput" > < span class = "identifier" > I2< / span > < / code > , < code class = "computeroutput" > < span class = "identifier" > I3< / span > < / code > ...
< / p >
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< / td >
< / tr >
< / tbody >
< / table > < / div >
< a name = "fusion.view.nview.model_of" > < / a > < h5 >
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< a name = "id988595" > < / a >
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< a class = "link" href = "nview.html#fusion.view.nview.model_of" > Model of< / a >
< / h5 >
< div class = "itemizedlist" > < ul class = "itemizedlist" type = "disc" > < li class = "listitem" >
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< a class = "link" href = "../sequence/concepts/random_access_sequence.html" title = "Random Access Sequence" > Random
Access Sequence< / a > (see < a class = "link" href = "../sequence/concepts.html#fusion.sequence.concepts.traversal" > Sequence
Traversal Concept< / a > )
< / li > < / ul > < / div >
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< div class = "variablelist" >
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< p class = "title" > < b > Notation< / b > < / p >
< dl >
< dt > < span class = "term" > < code class = "computeroutput" > < span class = "identifier" > NV< / span > < / code > < / span > < / dt >
< dd > < p >
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A < code class = "computeroutput" > < span class = "identifier" > nview< / span > < / code > type
< / p > < / dd >
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< dt > < span class = "term" > < code class = "computeroutput" > < span class = "identifier" > s< / span > < / code > < / span > < / dt >
< dd > < p >
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An instance of < code class = "computeroutput" > < span class = "identifier" > Sequences< / span > < / code >
< / p > < / dd >
< dt > < span class = "term" > < code class = "computeroutput" > < span class = "identifier" > nv1< / span > < / code > , < code class = "computeroutput" > < span class = "identifier" > nv2< / span > < / code > < / span > < / dt >
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< dd > < p >
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Instances of < code class = "computeroutput" > < span class = "identifier" > NV< / span > < / code >
< / p > < / dd >
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< / dl >
< / div >
< a name = "fusion.view.nview.expression_semantics" > < / a > < h5 >
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< a name = "id988718" > < / a >
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< a class = "link" href = "nview.html#fusion.view.nview.expression_semantics" > Expression Semantics< / a >
< / h5 >
< p >
Semantics of an expression is defined only where it differs from, or is not
defined in < a class = "link" href = "../sequence/concepts/random_access_sequence.html" title = "Random Access Sequence" > Random
Access Sequence< / a > .
< / p >
< div class = "informaltable" > < table class = "table" >
< colgroup >
< col >
< col >
< / colgroup >
< thead > < tr >
< th >
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< p >
Expression
< / p >
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< / th >
< th >
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< p >
Semantics
< / p >
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< / th >
< / tr > < / thead >
< tbody >
< tr >
< td >
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< p >
< code class = "computeroutput" > < span class = "identifier" > NV< / span > < span class = "special" > (< / span > < span class = "identifier" > s< / span > < span class = "special" > )< / span > < / code >
< / p >
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< / td >
< td >
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< p >
Creates an < code class = "computeroutput" > < span class = "identifier" > nview< / span > < / code >
given a sequence and a list of indicies.
< / p >
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< / td >
< / tr >
< tr >
< td >
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< p >
< code class = "computeroutput" > < span class = "identifier" > NV< / span > < span class = "special" > (< / span > < span class = "identifier" > nv1< / span > < span class = "special" > )< / span > < / code >
< / p >
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< / td >
< td >
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< p >
Copy constructs an < code class = "computeroutput" > < span class = "identifier" > nview< / span > < / code >
from another < code class = "computeroutput" > < span class = "identifier" > nview< / span > < / code > ,
< code class = "computeroutput" > < span class = "identifier" > nv1< / span > < / code > .
< / p >
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< / td >
< / tr >
< tr >
< td >
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< p >
< code class = "computeroutput" > < span class = "identifier" > nv1< / span > < span class = "special" > =< / span >
< span class = "identifier" > nv2< / span > < / code >
< / p >
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< / td >
< td >
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< p >
Assigns to an < code class = "computeroutput" > < span class = "identifier" > nview< / span > < / code > ,
< code class = "computeroutput" > < span class = "identifier" > nv1< / span > < / code > , from another
< code class = "computeroutput" > < span class = "identifier" > nview< / span > < / code > , < code class = "computeroutput" > < span class = "identifier" > nv2< / span > < / code > .
< / p >
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< / td >
< / tr >
< / tbody >
< / table > < / div >
< p >
The < code class = "computeroutput" > < span class = "identifier" > nview< / span > < / code > internally stores
a Fusion < a class = "link" href = "../container/vector.html" title = "vector" > < code class = "computeroutput" > < span class = "identifier" > vector< / span > < / code > < / a >
of references to the elements of the original Fusion < a class = "link" href = "../sequence.html" title = "Sequence" > Sequence< / a >
< / p >
< a name = "fusion.view.nview.example" > < / a > < h5 >
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< a name = "id988966" > < / a >
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< a class = "link" href = "nview.html#fusion.view.nview.example" > Example< / a >
< / h5 >
< pre class = "programlisting" > < span class = "keyword" > typedef< / span > < a class = "link" href = "../container/vector.html" title = "vector" > < code class = "computeroutput" > < span class = "identifier" > vector< / span > < / code > < / a > < span class = "special" > < < / span > < span class = "keyword" > int< / span > < span class = "special" > ,< / span > < span class = "keyword" > char< / span > < span class = "special" > ,< / span > < span class = "keyword" > double< / span > < span class = "special" > > < / span > < span class = "identifier" > vec< / span > < span class = "special" > ;< / span >
< span class = "keyword" > typedef< / span > < span class = "identifier" > mpl< / span > < span class = "special" > ::< / span > < span class = "identifier" > vector_c< / span > < span class = "special" > < < / span > < span class = "keyword" > int< / span > < span class = "special" > ,< / span > < span class = "number" > 2< / span > < span class = "special" > ,< / span > < span class = "number" > 1< / span > < span class = "special" > ,< / span > < span class = "number" > 0< / span > < span class = "special" > ,< / span > < span class = "number" > 2< / span > < span class = "special" > ,< / span > < span class = "number" > 0< / span > < span class = "special" > > < / span > < span class = "identifier" > indicies< / span > < span class = "special" > ;< / span >
< span class = "identifier" > vec< / span > < span class = "identifier" > v1< / span > < span class = "special" > (< / span > < span class = "number" > 1< / span > < span class = "special" > ,< / span > < span class = "char" > 'c'< / span > < span class = "special" > ,< / span > < span class = "number" > 2.0< / span > < span class = "special" > );< / span >
< span class = "identifier" > std< / span > < span class = "special" > ::< / span > < span class = "identifier" > cout< / span > < span class = "special" > < < < / span > < span class = "identifier" > nview< / span > < span class = "special" > < < / span > < span class = "identifier" > vec< / span > < span class = "special" > ,< / span > < span class = "identifier" > indicies< / span > < span class = "special" > > (< / span > < span class = "identifier" > v1< / span > < span class = "special" > )< / span > < span class = "special" > < < < / span > < span class = "identifier" > std< / span > < span class = "special" > ::< / span > < span class = "identifier" > endl< / span > < span class = "special" > ;< / span > < span class = "comment" > // (2.0 c 1 2.0 1)
< / span > < span class = "identifier" > std< / span > < span class = "special" > ::< / span > < span class = "identifier" > cout< / span > < span class = "special" > < < < / span > < span class = "identifier" > as_nview< / span > < span class = "special" > < < / span > < span class = "number" > 2< / span > < span class = "special" > ,< / span > < span class = "number" > 1< / span > < span class = "special" > ,< / span > < span class = "number" > 1< / span > < span class = "special" > ,< / span > < span class = "number" > 0< / span > < span class = "special" > > (< / span > < span class = "identifier" > v1< / span > < span class = "special" > )< / span > < span class = "special" > < < < / span > < span class = "identifier" > std< / span > < span class = "special" > ::< / span > < span class = "identifier" > endl< / span > < span class = "special" > ;< / span > < span class = "comment" > // (2.0 c c 1)
< / span > < / pre >
< / div >
< table xmlns:rev = "http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width = "100%" > < tr >
< td align = "left" > < / td >
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< td align = "right" > < div class = "copyright-footer" > Copyright © 2001-2007 Joel de Guzman, Dan Marsden, Tobias
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Schwinger< p >
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at < a href = "http://www.boost.org/LICENSE_1_0.txt" target = "_top" > http://www.boost.org/LICENSE_1_0.txt< / a > )
< / p >
< / div > < / td >
< / tr > < / table >
< hr >
< div class = "spirit-nav" >
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< a accesskey = "p" href = "reverse_view.html" > < img src = "../../../../../../doc/src/images/prev.png" alt = "Prev" > < / a > < a accesskey = "u" href = "../view.html" > < img src = "../../../../../../doc/src/images/up.png" alt = "Up" > < / a > < a accesskey = "h" href = "../../index.html" > < img src = "../../../../../../doc/src/images/home.png" alt = "Home" > < / a > < a accesskey = "n" href = "repetitive_view.html" > < img src = "../../../../../../doc/src/images/next.png" alt = "Next" > < / a >
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< / div >
< / body >
< / html >
