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< div class = "section" lang = "en" >
< div class = "titlepage" > < div > < div > < h4 class = "title" >
< a name = "fusion.sequences.containers.set" > < / a > < a href = "set.html" title = "set" > set< / a > < / h4 > < / div > < / div > < / div >
< a name = "fusion.sequences.containers.set.description" > < / a > < h5 >
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< a name = "id972315" > < / a >
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< a href = "set.html#fusion.sequences.containers.set.description" > Description< / a >
< / h5 >
< p >
set is an < a href = "../concepts/associative_sequence.html" title = "Associative
Sequence">Associative
Sequence< / a > of heteregenous typed data elements. Type identity is used
to impose an equivalence relation on keys. The element's type is its key.
A set may contain at most one element for each key. Membership testing
and element key lookup has constant runtime complexity (see < a href = "../../notes.html#fusion.notes.overloaded_functions" > Overloaded
Functions< / a > ).
< / p >
< a name = "fusion.sequences.containers.set.header" > < / a > < h5 >
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< a name = "id972364" > < / a >
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< a href = "set.html#fusion.sequences.containers.set.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" > set< / span > < span class = "special" > .< / span > < span class = "identifier" > hpp< / span > < span class = "special" > > < / span >
< / pre >
< a name = "fusion.sequences.containers.set.synopsis" > < / a > < h5 >
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< a name = "id972454" > < / a >
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< a href = "set.html#fusion.sequences.containers.set.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" > set< / span > < span class = "special" > ;< / span >
< / pre >
< p >
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The variadic class interface accepts < code class = "computeroutput" > < span class = "number" > 0< / span > < / code >
to < code class = "computeroutput" > < span class = "identifier" > FUSION_MAX_SET_SIZE< / span > < / code >
elements, where < code class = "computeroutput" > < span class = "identifier" > FUSION_MAX_SET_SIZE< / span > < / code >
is a user definable predefined maximum that defaults to < code class = "computeroutput" > < span class = "number" > 10< / span > < / code > .
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Example:
< / p >
< pre class = "programlisting" >
< span class = "identifier" > set< / 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 >
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You may define the preprocessor constant < code class = "computeroutput" > < span class = "identifier" > FUSION_MAX_SET_SIZE< / span > < / code >
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before including any Fusion header to change the default. Example:
< / p >
< pre class = "programlisting" >
< span class = "preprocessor" > #define< / span > < span class = "identifier" > FUSION_MAX_SET_SIZE< / span > < span class = "number" > 20< / span >
< / pre >
< a name = "fusion.sequences.containers.set.template_parameters" > < / a > < h5 >
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< a name = "id972737" > < / a >
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< a href = "set.html#fusion.sequences.containers.set.template_parameters" > Template
parameters< / a >
< / h5 >
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< div class = "informaltable" > < table class = "table" >
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< colgroup >
< col >
< col >
< col >
< / colgroup >
< thead > < tr >
< th > Parameter< / th >
< th > Description< / th >
< th > Default< / th >
< / tr > < / thead >
< tbody > < tr >
< td >
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< code class = "computeroutput" > < span class = "identifier" > T0< / span > < / code > ...< code class = "computeroutput" > < span class = "identifier" > TN< / span > < / code >
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< / td >
< td > Element types< / td >
< td > < span class = "emphasis" > < em > unspecified-type< / em > < / span > < / td >
< / tr > < / tbody >
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< / table > < / div >
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< a name = "fusion.sequences.containers.set.model_of" > < / a > < h5 >
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< a name = "id972817" > < / a >
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< a href = "set.html#fusion.sequences.containers.set.model_of" > Model of< / a >
< / h5 >
< div class = "itemizedlist" > < ul type = "disc" >
< li > < a href = "../concepts/associative_sequence.html" title = "Associative
Sequence">Associative
Sequence< / a > < / li >
< 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 >
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< dt > < span class = "term" > < code class = "computeroutput" > < span class = "identifier" > S< / span > < / code > < / span > < / dt >
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< dd >
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A < code class = "computeroutput" > < span class = "identifier" > set< / span > < / code > type
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< / dd >
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< dt > < span class = "term" > < code class = "computeroutput" > < span class = "identifier" > s< / span > < / code > < / span > < / dt >
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< dd >
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An instance of < code class = "computeroutput" > < span class = "identifier" > set< / span > < / code >
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< / dd >
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< dt > < span class = "term" > < code class = "computeroutput" > < span class = "identifier" > e0< / span > < / code > ...< code class = "computeroutput" > < span class = "identifier" > en< / span > < / code > < / span > < / dt >
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< dd >
Heterogeneous values
< / dd >
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< dt > < span class = "term" > < code class = "computeroutput" > < span class = "identifier" > fs< / span > < / code > < / span > < / dt >
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< dd >
A < a href = "../concepts/forward_sequence.html" title = "Forward
Sequence">Forward
Sequence< / a >
< / dd >
< / dl >
< / div >
< a name = "fusion.sequences.containers.set.expression_semantics" > < / a > < h5 >
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< a name = "id972968" > < / a >
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< a href = "set.html#fusion.sequences.containers.set.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/random_access_sequence.html" title = "Random
Access Sequence">Random
Access Sequence< / a > and < a href = "../concepts/associative_sequence.html" title = "Associative
Sequence">Associative
Sequence< / a > .
< / p >
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< div class = "informaltable" > < table class = "table" >
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< colgroup >
< col >
< col >
< / colgroup >
< thead > < tr >
< th > Expression< / th >
< th > Semantics< / th >
< / tr > < / thead >
< tbody >
< tr >
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< td > < code class = "computeroutput" > < span class = "identifier" > S< / span > < span class = "special" > ()< / span > < / code > < / td >
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< td > Creates
a set with default constructed elements.< / td >
< / tr >
< tr >
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< td > < code class = "computeroutput" > < span class = "identifier" > S< / span > < span class = "special" > (< / span > < span class = "identifier" > e0< / span > < span class = "special" > ,< / span > < span class = "identifier" > e1< / span > < span class = "special" > ,...< / span >
< span class = "identifier" > en< / span > < span class = "special" > )< / span > < / code > < / td >
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< td > Creates
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a set with elements < code class = "computeroutput" > < span class = "identifier" > e0< / span > < / code > ...< code class = "computeroutput" > < span class = "identifier" > en< / span > < / code > .< / td >
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< / tr >
< tr >
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< td > < code class = "computeroutput" > < span class = "identifier" > S< / span > < span class = "special" > (< / span > < span class = "identifier" > fs< / span > < span class = "special" > )< / span > < / code > < / td >
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< td > Copy
constructs a set from a < a href = "../concepts/forward_sequence.html" title = "Forward
Sequence">Forward
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Sequence< / a > < code class = "computeroutput" > < span class = "identifier" > fs< / span > < / code > .< / td >
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< / tr >
< tr >
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< td > < code class = "computeroutput" > < span class = "identifier" > s< / span > < span class = "special" > =< / span >
< span class = "identifier" > fs< / span > < / code > < / td >
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< td > Assigns
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to a set, < code class = "computeroutput" > < span class = "identifier" > s< / span > < / code > , from
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a < a href = "../concepts/forward_sequence.html" title = "Forward
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Sequence">Forward
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Sequence< / a > < code class = "computeroutput" > < span class = "identifier" > fs< / span > < / code > .< / td >
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< / tr >
< / tbody >
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< / table > < / div >
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< a name = "fusion.sequences.containers.set.example" > < / a > < h5 >
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< a name = "id973224" > < / a >
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< a href = "set.html#fusion.sequences.containers.set.example" > Example< / a >
< / h5 >
< pre class = "programlisting" >
< span class = "keyword" > typedef< / span > < span class = "identifier" > set< / 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" > S< / span > < span class = "special" > ;< / span >
< span class = "identifier" > S< / span > < span class = "identifier" > s< / span > < span class = "special" > (< / span > < span class = "number" > 12< / span > < span class = "special" > ,< / span > < span class = "number" > 5.5f< / span > < span class = "special" > );< / span >
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< span class = "identifier" > std< / span > < span class = "special" > ::< / span > < span class = "identifier" > cout< / span > < span class = "special" > < < < / span > < a href = "../intrinsics/functions/at_key.html" title = "at_key" > < code class = "computeroutput" > < span class = "identifier" > at_key< / span > < / code > < / a > < span class = "special" > < < / span > < span class = "keyword" > int< / span > < span class = "special" > > (< / span > < span class = "identifier" > s< / 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_key.html" title = "at_key" > < code class = "computeroutput" > < span class = "identifier" > at_key< / span > < / code > < / a > < span class = "special" > < < / span > < span class = "keyword" > float< / span > < span class = "special" > > (< / span > < span class = "identifier" > s< / 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/metafunctions/has_key.html" title = "has_key" > < code class = "computeroutput" > < span class = "identifier" > result_of< / span > < span class = "special" > ::< / span > < span class = "identifier" > has_key< / span > < / code > < / a > < span class = "special" > < < / span > < span class = "identifier" > S< / span > < span class = "special" > ,< / span > < span class = "keyword" > double< / span > < span class = "special" > > ::< / span > < span class = "identifier" > value< / span > < span class = "special" > < < < / span > < span class = "identifier" > std< / span > < span class = "special" > ::< / span > < span class = "identifier" > endl< / span > < span class = "special" > ;< / span >
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< / 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 = "list.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 = "map.html" > < img src = "../../../images/next.png" alt = "Next" > < / a >
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