2006-08-22 15:57:13 +00:00
< html >
< head >
< meta http-equiv = "Content-Type" content = "text/html; charset=ISO-8859-1" >
< title > list< / title >
< link rel = "stylesheet" href = "../../../boostbook.css" type = "text/css" >
< meta name = "generator" content = "DocBook XSL Stylesheets V1.66.1" >
< link rel = "start" href = "../../../index.html" title = "Chapter<65> 1.<2E> Fusion 2.0" >
< link rel = "up" href = "../containers.html" title = "Containers" >
< link rel = "prev" href = "cons.html" title = "cons" >
< link rel = "next" href = "set.html" title = "set" >
< / head >
< body bgcolor = "white" text = "black" link = "#0000FF" vlink = "#840084" alink = "#0000FF" >
< table cellpadding = "2" width = "100%" >
< td valign = "top" > < img alt = "Boost C++ Libraries" width = "277" height = "86" src = "../../../../../../../boost.png" > < / td >
< td align = "center" > < a href = "../../../../../../../index.htm" > Home< / a > < / td >
< td align = "center" > < a href = "../../../../../../libraries.htm" > Libraries< / a > < / td >
< td align = "center" > < a href = "../../../../../../../people/people.htm" > People< / a > < / td >
< td align = "center" > < a href = "../../../../../../../more/faq.htm" > FAQ< / a > < / td >
< td align = "center" > < a href = "../../../../../../../more/index.htm" > More< / a > < / td >
< / table >
< hr >
< div class = "spirit-nav" >
< a accesskey = "p" href = "cons.html" > < img src = "../../../images/prev.png" alt = "Prev" > < / a > < a accesskey = "u" href = "../containers.html" > < img src = "../../../images/up.png" alt = "Up" > < / a > < a accesskey = "h" href = "../../../index.html" > < img src = "../../../images/home.png" alt = "Home" > < / a > < a accesskey = "n" href = "set.html" > < img src = "../../../images/next.png" alt = "Next" > < / a >
< / div >
< div class = "section" lang = "en" >
< div class = "titlepage" > < div > < div > < h4 class = "title" >
< a name = "fusion.sequences.containers.list" > < / a > < a href = "list.html" title = "list" > list< / a > < / h4 > < / div > < / div > < / div >
< a name = "fusion.sequences.containers.list.description" > < / a > < h5 >
2006-10-30 01:20:23 +00:00
< a name = "id485898" > < / a >
2006-08-22 15:57:13 +00:00
< a href = "list.html#fusion.sequences.containers.list.description" > Description< / a >
< / h5 >
< p >
< tt class = "computeroutput" > < span class = "identifier" > list< / span > < / tt > is a < a href = "../concepts/forward_sequence.html" title = "Forward
Sequence">Forward
Sequence< / a > of heterogenous typed data built on top of < a href = "cons.html" title = "cons" > < tt class = "computeroutput" > < span class = "identifier" > cons< / span > < / tt > < / a > . It is more efficient than
< a href = "vector.html" title = "vector" > < tt class = "computeroutput" > < span class = "identifier" > vector< / span > < / tt > < / a >
when the target sequence is constructed piecemeal (a data at a time). The
runtime cost of access to each element is peculiarly constant (see < a href = "../../notes.html#fusion.notes.recursive_inlined_functions" > Recursive Inlined Functions< / a > ).
< / p >
< a name = "fusion.sequences.containers.list.header" > < / a > < h5 >
2006-10-30 01:20:23 +00:00
< a name = "id485990" > < / a >
2006-08-22 15:57:13 +00:00
< a href = "list.html#fusion.sequences.containers.list.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" > sequence< / span > < span class = "special" > /< / span > < span class = "identifier" > container< / span > < span class = "special" > /< / span > < span class = "identifier" > list< / 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" > sequence< / span > < span class = "special" > /< / span > < span class = "identifier" > container< / span > < span class = "special" > /< / span > < span class = "identifier" > list< / span > < span class = "special" > /< / span > < span class = "identifier" > list_forward< / span > < span class = "special" > .< / span > < span class = "identifier" > hpp< / span > < span class = "special" > > < / span >
< / pre >
< a name = "fusion.sequences.containers.list.synopsis" > < / a > < h5 >
2006-10-30 01:20:23 +00:00
< a name = "id486178" > < / a >
2006-08-22 15:57:13 +00:00
< a href = "list.html#fusion.sequences.containers.list.synopsis" > Synopsis< / a >
< / h5 >
< pre class = "programlisting" >
< span class = "keyword" > template< / span > < span class = "special" > < < / span >
< span class = "keyword" > typename< / span > < span class = "identifier" > T0< / span > < span class = "special" > =< / span > < span class = "emphasis" > < em > unspecified< / em > < / span >
< span class = "special" > ,< / span > < span class = "keyword" > typename< / span > < span class = "identifier" > T1< / span > < span class = "special" > =< / span > < span class = "emphasis" > < em > unspecified< / em > < / span >
< span class = "special" > ,< / span > < span class = "keyword" > typename< / span > < span class = "identifier" > T2< / span > < span class = "special" > =< / span > < span class = "emphasis" > < em > unspecified< / em > < / span >
< span class = "special" > ...< / span >
< span class = "special" > ,< / span > < span class = "keyword" > typename< / span > < span class = "identifier" > TN< / span > < span class = "special" > =< / span > < span class = "emphasis" > < em > unspecified< / em > < / span >
< span class = "special" > > < / span >
< span class = "keyword" > struct< / span > < span class = "identifier" > list< / span > < span class = "special" > ;< / span >
< / pre >
< p >
The variadic class interface accepts < tt class = "computeroutput" > < span class = "number" > 0< / span > < / tt >
to < tt class = "computeroutput" > < span class = "identifier" > FUSION_MAX_LIST_SIZE< / span > < / tt >
elements, where < tt class = "computeroutput" > < span class = "identifier" > FUSION_MAX_LIST_SIZE< / span > < / tt >
is a user definable predefined maximum that defaults to < tt class = "computeroutput" > < span class = "number" > 10< / span > < / tt > .
Example:
< / p >
< pre class = "programlisting" >
< span class = "identifier" > list< / span > < 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 >
< / pre >
< p >
You may define the preprocessor constant < tt class = "computeroutput" > < span class = "identifier" > FUSION_MAX_LIST_SIZE< / span > < / tt >
before including any Fusion header to change the default. Example:
< / p >
< pre class = "programlisting" >
< span class = "preprocessor" > #define< / span > < span class = "identifier" > FUSION_MAX_LIST_SIZE< / span > < span class = "number" > 20< / span >
< / pre >
< a name = "fusion.sequences.containers.list.template_parameters" > < / a > < h5 >
2006-10-30 01:20:23 +00:00
< a name = "id486498" > < / a >
2006-08-22 15:57:13 +00:00
< a href = "list.html#fusion.sequences.containers.list.template_parameters" > Template
parameters< / a >
< / h5 >
2006-10-30 01:20:23 +00:00
< div class = "informaltable" > < table class = "table" >
2006-08-22 15:57:13 +00:00
< colgroup >
< col >
< col >
< col >
< / colgroup >
< thead > < tr >
< th > Parameter< / th >
< th > Description< / th >
< th > Default< / th >
< / tr > < / thead >
< tbody > < tr >
< td >
< tt class = "computeroutput" > < span class = "identifier" > T0< / span > < / tt > ...< tt class = "computeroutput" > < span class = "identifier" > TN< / span > < / tt >
< / td >
< td > Element types< / td >
< td > < span class = "emphasis" > < em > unspecified-type< / em > < / span > < / td >
< / tr > < / tbody >
2006-10-30 01:20:23 +00:00
< / table > < / div >
2006-08-22 15:57:13 +00:00
< a name = "fusion.sequences.containers.list.model_of" > < / a > < h5 >
2006-10-30 01:20:23 +00:00
< a name = "id486588" > < / a >
2006-08-22 15:57:13 +00:00
< a href = "list.html#fusion.sequences.containers.list.model_of" > Model of< / a >
< / h5 >
< div class = "itemizedlist" > < ul type = "disc" > < li > < a href = "../concepts/forward_sequence.html" title = "Forward
Sequence">Forward Sequence< / a > < / li > < / ul > < / div >
< div class = "variablelist" >
< p class = "title" > < b > Notation< / b > < / p >
< dl >
< dt > < span class = "term" > < tt class = "computeroutput" > < span class = "identifier" > L< / span > < / tt > < / span > < / dt >
< dd >
A < tt class = "computeroutput" > < span class = "identifier" > list< / span > < / tt > type
< / dd >
< dt > < span class = "term" > < tt class = "computeroutput" > < span class = "identifier" > l< / span > < / tt > < / span > < / dt >
< dd >
An instance of < tt class = "computeroutput" > < span class = "identifier" > list< / span > < / tt >
< / dd >
< dt > < span class = "term" > < tt class = "computeroutput" > < span class = "identifier" > e0< / span > < / tt > ...< tt class = "computeroutput" > < span class = "identifier" > en< / span > < / tt > < / span > < / dt >
< dd >
Heterogeneous values
< / dd >
< dt > < span class = "term" > < tt class = "computeroutput" > < span class = "identifier" > s< / span > < / tt > < / span > < / dt >
< dd >
A < a href = "../concepts/forward_sequence.html" title = "Forward
Sequence">Forward
Sequence< / a >
< / dd >
< dt > < span class = "term" > < tt class = "computeroutput" > < span class = "identifier" > N< / span > < / tt > < / span > < / dt >
< dd >
An Integral Constant
< / dd >
< / dl >
< / div >
< a name = "fusion.sequences.containers.list.expression_semantics" > < / a > < h5 >
2006-10-30 01:20:23 +00:00
< a name = "id486764" > < / a >
2006-08-22 15:57:13 +00:00
< a href = "list.html#fusion.sequences.containers.list.expression_semantics" > Expression
Semantics< / a >
< / h5 >
< p >
Semantics of an expression is defined only where it differs from, or is
not defined in < a href = "../concepts/forward_sequence.html" title = "Forward
Sequence">Forward
Sequence< / a > .
< / p >
2006-10-30 01:20:23 +00:00
< div class = "informaltable" > < table class = "table" >
2006-08-22 15:57:13 +00:00
< colgroup >
< col >
< col >
< / colgroup >
< thead > < tr >
< th > Expression< / th >
< th > Semantics< / th >
< / tr > < / thead >
< tbody >
< tr >
< td > < tt class = "computeroutput" > < span class = "identifier" > L< / span > < span class = "special" > ()< / span > < / tt > < / td >
< td > Creates
a list with default constructed elements.< / td >
< / tr >
< tr >
< td > < tt class = "computeroutput" > < span class = "identifier" > L< / span > < span class = "special" > (< / span > < span class = "identifier" > e0< / span > < span class = "special" > ,< / span > <EFBFBD> < span class = "identifier" > e1< / span > < span class = "special" > ,...< / span > <EFBFBD> < span class = "identifier" > en< / span > < span class = "special" > )< / span > < / tt > < / td >
< td > Creates
a list with elements < tt class = "computeroutput" > < span class = "identifier" > e0< / span > < / tt > ...< tt class = "computeroutput" > < span class = "identifier" > en< / span > < / tt > .< / td >
< / tr >
< tr >
< td > < tt class = "computeroutput" > < span class = "identifier" > L< / span > < span class = "special" > (< / span > < span class = "identifier" > s< / span > < span class = "special" > )< / span > < / tt > < / td >
< td > Copy
constructs a list from a < a href = "../concepts/forward_sequence.html" title = "Forward
Sequence">Forward
Sequence< / a > , < tt class = "computeroutput" > < span class = "identifier" > s< / span > < / tt > .< / td >
< / tr >
< tr >
< td > < tt class = "computeroutput" > < span class = "identifier" > l< / span > <EFBFBD> < span class = "special" > =< / span > <EFBFBD> < span class = "identifier" > s< / span > < / tt > < / td >
< td > Assigns to a list,
< tt class = "computeroutput" > < span class = "identifier" > l< / span > < / tt > , from a < a href = "../concepts/forward_sequence.html" title = "Forward
Sequence">Forward
Sequence< / a > , < tt class = "computeroutput" > < span class = "identifier" > s< / span > < / tt > .< / td >
< / tr >
< tr >
< td > < tt class = "computeroutput" > < a href = "../intrinsics/functions/at.html" title = "at" > < tt class = "computeroutput" > < span class = "identifier" > at< / span > < / tt > < / a > < span class = "special" > < < / span > < span class = "identifier" > N< / span > < span class = "special" > > (< / span > < span class = "identifier" > l< / span > < span class = "special" > )< / span > < / tt > < / td >
< td > The
Nth element from the beginning of the sequence; see < a href = "../intrinsics/functions/at.html" title = "at" > < tt class = "computeroutput" > < span class = "identifier" > at< / span > < / tt > < / a > .< / td >
< / tr >
< / tbody >
2006-10-30 01:20:23 +00:00
< / table > < / div >
2006-08-22 15:57:13 +00:00
< p class = "blurb" >
< span class = "inlinemediaobject" > < img src = "../../../images/note.png" alt = "note" > < / span > <EFBFBD> < tt class = "computeroutput" > < a href = "../intrinsics/functions/at.html" title = "at" > < tt class = "computeroutput" > < span class = "identifier" > at< / span > < / tt > < / a > < span class = "special" > < < / span > < span class = "identifier" > n< / span > < span class = "special" > > (< / span > < span class = "identifier" > l< / span > < span class = "special" > )< / span > < / tt > is
provided for convenience and compatibility with the original < a href = "http://www.boost.org/libs/tuple/doc/tuple_users_guide.html" target = "_top" > Boost.Tuple< / a >
library, despite < tt class = "computeroutput" > < span class = "identifier" > list< / span > < / tt > being
a < a href = "../concepts/forward_sequence.html" title = "Forward
Sequence">Forward Sequence< / a >
only (< a href = "../intrinsics/functions/at.html" title = "at" > < tt class = "computeroutput" > < span class = "identifier" > at< / span > < / tt > < / a > is supposed to be a < a href = "../concepts/random_access_sequence.html" title = "Random
Access Sequence">Random
Access Sequence< / a > requirement). The runtime complexity of < a href = "../intrinsics/functions/at.html" title = "at" > < tt class = "computeroutput" > < span class = "identifier" > at< / span > < / tt > < / a > is constant (see < a href = "../../notes.html#fusion.notes.recursive_inlined_functions" > Recursive
Inlined Functions< / a > ).
< / p >
< a name = "fusion.sequences.containers.list.example" > < / a > < h5 >
2006-10-30 01:20:23 +00:00
< a name = "id487262" > < / a >
2006-08-22 15:57:13 +00:00
< a href = "list.html#fusion.sequences.containers.list.example" > Example< / a >
< / h5 >
< pre class = "programlisting" >
< span class = "identifier" > list< / span > < span class = "special" > < < / span > < span class = "keyword" > int< / span > < span class = "special" > ,< / span > < span class = "keyword" > float< / span > < span class = "special" > > < / span > < span class = "identifier" > l< / span > < span class = "special" > (< / span > < span class = "number" > 12< / span > < span class = "special" > ,< / span > < span class = "number" > 5.5f< / span > < span class = "special" > );< / span >
< span class = "identifier" > std< / span > < span class = "special" > ::< / span > < span class = "identifier" > cout< / span > < span class = "special" > < < < / span > < a href = "../intrinsics/functions/at.html" title = "at" > < tt class = "computeroutput" > < span class = "identifier" > at< / span > < / tt > < / a > < span class = "special" > < < / span > < span class = "number" > 0< / span > < span class = "special" > > (< / span > < span class = "identifier" > l< / 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 = "identifier" > std< / span > < span class = "special" > ::< / span > < span class = "identifier" > cout< / span > < span class = "special" > < < < / span > < a href = "../intrinsics/functions/at.html" title = "at" > < tt class = "computeroutput" > < span class = "identifier" > at< / span > < / tt > < / a > < span class = "special" > < < / span > < span class = "number" > 1< / span > < span class = "special" > > (< / span > < span class = "identifier" > l< / 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 >
< / pre >
< / div >
< table xmlns:rev = "http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width = "100%" > < tr >
< td align = "left" > < / td >
< td align = "right" > < small > Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden< / small > < / td >
< / tr > < / table >
< hr >
< div class = "spirit-nav" >
< a accesskey = "p" href = "cons.html" > < img src = "../../../images/prev.png" alt = "Prev" > < / a > < a accesskey = "u" href = "../containers.html" > < img src = "../../../images/up.png" alt = "Up" > < / a > < a accesskey = "h" href = "../../../index.html" > < img src = "../../../images/home.png" alt = "Home" > < / a > < a accesskey = "n" href = "set.html" > < img src = "../../../images/next.png" alt = "Next" > < / a >
< / div >
< / body >
< / html >
