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< div class = "titlepage" >< div >< div >< h4 class = "title" >
< a name = "fusion.functional.adapters.unfused_generic" ></ a >< a href = "unfused_generic.html" title = "unfused_generic" > unfused_generic</ a ></ h4 ></ div ></ div ></ div >
< a name = "fusion.functional.adapters.unfused_generic.description" ></ a >< h5 >
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< a name = "id666625" ></ a >
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< a href = "unfused_generic.html#fusion.functional.adapters.unfused_generic.description" > Description</ a >
</ h5 >
< p >
An n-ary < a href = "../concepts/poly.html" title = " Polymorphic Function
Object" > Polymorphic Function
Object</ a > adapter template for an unary < a href = "../concepts/poly.html" title = " Polymorphic Function
Object" > Polymorphic
Function Object</ a > target function. When called, its arguments are
bundled to a < a href = "../../sequence/concepts/random_access_sequence.html" title = "Random
Access Sequence" > Random
Access Sequence</ a > of references that is passed to the target function.
Non-const LValue arguments are transported as references to non-const,
otherwise references to const are used.
</ p >
< div class = "sidebar" >< p >
< span class = "inlinemediaobject" >< img src = "../../../images/tip.png" alt = "tip" ></ span > Detecting mutable LValues on a per-argument basis
is currently a compile time expensive operation (see < a href = "http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2002/n1385.htm" target = "_top" > The
Forwarding Problem</ a > for details). Therefore, there are two, lightweight
and more restricted variants of this class template, < a href = "unfused_lvalue_args.html" title = "unfused_lvalue_args" >< tt class = "computeroutput" >< span class = "identifier" > unfused_lvalue_args</ span ></ tt ></ a > and < a href = "unfused_rvalue_args.html" title = "unfused_rvalue_args" >< tt class = "computeroutput" >< span class = "identifier" > unfused_rvalue_args</ span ></ tt ></ a > .
</ p ></ div >
< p >
The type of the target function is allowed to be const qualified or a reference.
Const qualification is preserved and propagated appropriately (in other
words, only const versions of < tt class = "literal" > operator()</ tt > can be used
if the target function object is const - or, in case the target function
object is held by value, the adapter is const).
</ p >
< p >
/functional/adapter/unfused_generic.hpp>
</ p >
< a name = "fusion.functional.adapters.unfused_generic.synopsis" ></ a >< h5 >
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< a name = "id666783" ></ a >
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< a href = "unfused_generic.html#fusion.functional.adapters.unfused_generic.synopsis" > Synopsis</ a >
</ h5 >
< pre class = "programlisting" >
< span class = "keyword" > template</ span > < span class = "special" > < </ span >< span class = "keyword" > class</ span > < span class = "identifier" > Function</ span >< span class = "special" > > </ span >
< span class = "keyword" > class</ span > < span class = "identifier" > unfused_generic</ span >< span class = "special" > ;</ span >
</ pre >
< a name = "fusion.functional.adapters.unfused_generic.template_parameters" ></ a >< h5 >
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< a name = "id666864" ></ a >
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< a href = "unfused_generic.html#fusion.functional.adapters.unfused_generic.template_parameters" > Template
parameters</ a >
</ h5 >
< div class = "informaltable" >< table class = "table" >
< colgroup >
< col >
< col >
< col >
</ colgroup >
< thead >< tr >
< th >
< p >
Parameter
</ p >
</ th >
< th >
< p >
Description
</ p >
</ th >
< th >
< p >
Default
</ p >
</ th >
</ tr ></ thead >
< tbody >< tr >
< td >
< p >
< tt class = "computeroutput" >< span class = "identifier" > Function</ span ></ tt >
</ p >
</ td >
< td >
< p >
An unary < a href = "../concepts/poly.html" title = " Polymorphic Function
Object" > Polymorphic
Function Object</ a >
</ p >
</ td >
< td >
< p >
</ p >
</ td >
</ tr ></ tbody >
</ table ></ div >
< a name = "fusion.functional.adapters.unfused_generic.model_of" ></ a >< h5 >
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< a name = "id666979" ></ a >
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< a href = "unfused_generic.html#fusion.functional.adapters.unfused_generic.model_of" > Model
of</ a >
</ h5 >
< div class = "itemizedlist" >< ul type = "disc" >
< li >< a href = "../concepts/poly.html" title = " Polymorphic Function
Object" > Polymorphic Function
Object</ a ></ li >
< li >< a href = "../concepts/def_callable.html" title = " Deferred
Callable Object" > Deferred Callable
Object</ 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" > F</ span ></ tt ></ span ></ dt >
< dd >< p >
A possibly const qualified, unary < a href = "../concepts/poly.html" title = " Polymorphic Function
Object" > Polymorphic
Function Object</ a > type or reference type thereof
</ p ></ dd >
< dt >< span class = "term" >< tt class = "computeroutput" >< span class = "identifier" > f</ span ></ tt ></ span ></ dt >
< dd >< p >
An object convertible to < tt class = "computeroutput" >< span class = "identifier" > F</ span ></ tt >
</ p ></ dd >
< dt >< span class = "term" >< tt class = "computeroutput" >< span class = "identifier" > UG</ span ></ tt ></ span ></ dt >
< dd >< p >
The type < tt class = "computeroutput" >< span class = "identifier" > unfused_generic</ span >< span class = "special" > < </ span >< span class = "identifier" > F</ span >< span class = "special" > > </ span ></ tt >
</ p ></ dd >
< dt >< span class = "term" >< tt class = "computeroutput" >< span class = "identifier" > ug</ span ></ tt ></ span ></ dt >
< dd >< p >
An instance of < tt class = "computeroutput" >< span class = "identifier" > UG</ span ></ tt > ,
initialized with < tt class = "computeroutput" >< span class = "identifier" > f</ span ></ tt >
</ p ></ dd >
< dt >< span class = "term" >< tt class = "computeroutput" >< span class = "identifier" > a0</ span ></ tt > ...< tt class = "computeroutput" >< span class = "identifier" > aN</ span ></ tt ></ span ></ dt >
< dd >< p >
Arguments to < tt class = "computeroutput" >< span class = "identifier" > ug</ span ></ tt >
</ p ></ dd >
</ dl >
</ div >
< a name = "fusion.functional.adapters.unfused_generic.expression_semantics" ></ a >< h5 >
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< a name = "id667248" ></ a >
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< a href = "unfused_generic.html#fusion.functional.adapters.unfused_generic.expression_semantics" > Expression
Semantics</ a >
</ h5 >
< div class = "informaltable" >< table class = "table" >
< colgroup >
< col >
< col >
</ colgroup >
< thead >< tr >
< th >
< p >
Expression
</ p >
</ th >
< th >
< p >
Semantics
</ p >
</ th >
</ tr ></ thead >
< tbody >
< tr >
< td >
< p >
< tt class = "computeroutput" >< span class = "identifier" > UG</ span >< span class = "special" > (</ span >< span class = "identifier" > f</ span >< span class = "special" > )</ span ></ tt >
</ p >
</ td >
< td >
< p >
Creates a fused function as described above, initializes the target
function with < tt class = "computeroutput" >< span class = "identifier" > f</ span ></ tt > .
</ p >
</ td >
</ tr >
< tr >
< td >
< p >
< tt class = "computeroutput" >< span class = "identifier" > UG</ span >< span class = "special" > ()</ span ></ tt >
</ p >
</ td >
< td >
< p >
Creates a fused function as described above, attempts to use < tt class = "computeroutput" >< span class = "identifier" > F</ span ></ tt > 's default constructor.
</ p >
</ td >
</ tr >
< tr >
< td >
< p >
< tt class = "computeroutput" >< span class = "identifier" > ug</ span >< span class = "special" > (</ span >< span class = "identifier" > a0</ span ></ tt > ...< tt class = "computeroutput" >< span class = "identifier" > aN</ span >< span class = "special" > )</ span ></ tt >
</ p >
</ td >
< td >
< p >
Calls < tt class = "computeroutput" >< span class = "identifier" > f</ span ></ tt > with a
< a href = "../../sequence.html" title = "Sequence" > Sequence</ a > that contains references
to the arguments < tt class = "computeroutput" >< span class = "identifier" > a0</ span ></ tt > ...< tt class = "computeroutput" >< span class = "identifier" > aN</ span ></ tt > .
</ p >
</ td >
</ tr >
</ tbody >
</ table ></ div >
< a name = "fusion.functional.adapters.unfused_generic.example" ></ a >< h5 >
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< a name = "id667514" ></ a >
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< a href = "unfused_generic.html#fusion.functional.adapters.unfused_generic.example" > Example</ a >
</ h5 >
< pre class = "programlisting" >
< span class = "keyword" > template</ span > < span class = "special" > < </ span >< span class = "keyword" > typename</ span > < span class = "identifier" > Function</ span >< span class = "special" > ,</ span > < span class = "keyword" > typename</ span > < span class = "identifier" > T</ span >< span class = "special" > > </ span >
< span class = "keyword" > class</ span > < span class = "identifier" > fused_bound_1st</ span >
< span class = "special" > {</ span >
< span class = "keyword" > typename</ span > < span class = "identifier" > traits</ span >< span class = "special" > ::</ span >< span class = "identifier" > deduce</ span >< span class = "special" > < </ span >< span class = "identifier" > Function</ span >< span class = "special" > > ::</ span >< span class = "identifier" > type</ span > < span class = "identifier" > fnc_deferred</ span >< span class = "special" > ;</ span >
< span class = "keyword" > typename</ span > < span class = "identifier" > traits</ span >< span class = "special" > ::</ span >< span class = "identifier" > deduce</ span >< span class = "special" > < </ span >< span class = "identifier" > T</ span >< span class = "special" > > ::</ span >< span class = "identifier" > type</ span > < span class = "identifier" > xxx_bound</ span >< span class = "special" > ;</ span >
< span class = "keyword" > public</ span >< span class = "special" > :</ span >
< span class = "identifier" > fused_bound_1st</ span >< span class = "special" > (</ span >< span class = "identifier" > Function</ span > < span class = "identifier" > deferred</ span >< span class = "special" > ,</ span > < span class = "identifier" > T</ span > < span class = "identifier" > bound</ span >< span class = "special" > )</ span >
< span class = "special" > :</ span > < span class = "identifier" > fnc_deferred</ span >< span class = "special" > (</ span >< span class = "identifier" > deferred</ span >< span class = "special" > ),</ span > < span class = "identifier" > xxx_bound</ span >< span class = "special" > (</ span >< span class = "identifier" > bound</ span >< span class = "special" > )</ span >
< span class = "special" > {</ span > < span class = "special" > }</ span >
< span class = "keyword" > template</ span > < span class = "special" > < </ span >< span class = "keyword" > typename</ span > < span class = "identifier" > Sig</ span >< span class = "special" > > </ span >
< span class = "keyword" > struct</ span > < span class = "identifier" > result</ span >< span class = "special" > ;</ span >
< span class = "keyword" > template</ span > < span class = "special" > < </ span >< span class = "keyword" > class</ span > < span class = "identifier" > Self</ span >< span class = "special" > ,</ span > < span class = "keyword" > class</ span > < span class = "identifier" > Seq</ span >< span class = "special" > > </ span >
< span class = "keyword" > struct</ span > < span class = "identifier" > result</ span >< span class = "special" > < </ span > < span class = "identifier" > Self</ span >< span class = "special" > (</ span >< span class = "identifier" > Seq</ span >< span class = "special" > )</ span > < span class = "special" > > </ span >
< span class = "special" > :</ span > < span class = "identifier" > result_of</ span >< span class = "special" > ::</ span >< span class = "identifier" > invoke</ span >< span class = "special" > < </ span > < span class = "identifier" > Function</ span >< span class = "special" > ,</ span > < span class = "keyword" > typename</ span > < span class = "identifier" > result_of</ span >< span class = "special" > ::</ span >< span class = "identifier" > push_front</ span >< span class = "special" > < </ span >
< span class = "keyword" > typename</ span > < span class = "identifier" > remove_reference</ span >< span class = "special" > < </ span >< span class = "identifier" > Seq</ span >< span class = "special" > > ::</ span >< span class = "identifier" > type</ span >< span class = "special" > ,</ span > < span class = "identifier" > T</ span >< span class = "special" > > ::</ span >< span class = "identifier" > type</ span > < span class = "special" > > </ span >
< span class = "special" > {</ span > < span class = "special" > };</ span >
< span class = "keyword" > template</ span > < span class = "special" > < </ span >< span class = "keyword" > class</ span > < span class = "identifier" > Seq</ span >< span class = "special" > > </ span >
< span class = "keyword" > typename</ span > < span class = "identifier" > result</ span >< span class = "special" > < </ span > < span class = "keyword" > void</ span >< span class = "special" > (</ span >< span class = "identifier" > Seq</ span >< span class = "special" > )</ span > < span class = "special" > > ::</ span >< span class = "identifier" > type</ span > < span class = "keyword" > operator</ span >< span class = "special" > ()(</ span >< span class = "identifier" > Seq</ span > < span class = "keyword" > const</ span > < span class = "special" > & </ span > < span class = "identifier" > s</ span >< span class = "special" > )</ span > < span class = "keyword" > const</ span >
< span class = "special" > {</ span >
< span class = "keyword" > return</ span > < span class = "identifier" > invoke</ span >< span class = "special" > (</ span >< span class = "identifier" > fnc_deferred</ span >< span class = "special" > ,</ span > < span class = "identifier" > push_front</ span >< span class = "special" > (</ span >< span class = "identifier" > s</ span >< span class = "special" > ,</ span >< span class = "identifier" > xxx_bound</ span >< span class = "special" > ));</ span >
< span class = "special" > }</ span >
< span class = "special" > };</ span >
< span class = "keyword" > template</ span > < span class = "special" > < </ span >< span class = "keyword" > typename</ span > < span class = "identifier" > Function</ span >< span class = "special" > ,</ span > < span class = "keyword" > typename</ span > < span class = "identifier" > T</ span >< span class = "special" > > </ span >
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< span class = "identifier" > unfused_generic</ span >< span class = "special" > < </ span > < span class = "identifier" > fused_bound_1st</ span >< span class = "special" > < </ span >< span class = "identifier" > Function</ span >< span class = "special" > ,</ span >< span class = "identifier" > T</ span >< span class = "special" > > </ span > < span class = "special" > > </ span >
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< span class = "identifier" > bind_1st</ span >< span class = "special" > (</ span >< span class = "identifier" > Function</ span > < span class = "identifier" > f</ span >< span class = "special" > ,</ span > < span class = "identifier" > T</ span > < span class = "keyword" > const</ span > < span class = "special" > & </ span > < span class = "identifier" > x</ span >< span class = "special" > )</ span >
< span class = "special" > {</ span >
< span class = "keyword" > return</ span > < span class = "identifier" > unfused_generic</ span >< span class = "special" > < </ span > < span class = "identifier" > fused_bound_1st</ span >< span class = "special" > < </ span >< span class = "identifier" > Function</ span >< span class = "special" > ,</ span >< span class = "identifier" > T</ span >< span class = "special" > > </ span > < span class = "special" > > (</ span >
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< span class = "identifier" > fused_bound_1st</ span >< span class = "special" > < </ span >< span class = "identifier" > Function</ span >< span class = "special" > ,</ span >< span class = "identifier" > T</ span >< span class = "special" > > (</ span >< span class = "identifier" > f</ span >< span class = "special" > ,</ span >< span class = "identifier" > x</ span >< span class = "special" > )</ span > < span class = "special" > );</ span >
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< span class = "special" > }</ span >
< span class = "keyword" > int</ span > < span class = "identifier" > test_func</ span >< span class = "special" > (</ span >< span class = "keyword" > int</ span > < span class = "identifier" > a</ span >< span class = "special" > ,</ span > < span class = "keyword" > int</ span > < span class = "identifier" > b</ span >< span class = "special" > ,</ span > < span class = "keyword" > int</ span > < span class = "identifier" > c</ span >< span class = "special" > )</ span >
< span class = "special" > {</ span >
< span class = "keyword" > return</ span > < span class = "identifier" > a</ span >< span class = "special" > +</ span >< span class = "identifier" > b</ span >< span class = "special" > +</ span >< span class = "identifier" > c</ span >< span class = "special" > ;</ span >
< span class = "special" > }</ span >
< span class = "keyword" > void</ span > < span class = "identifier" > try_it</ span >< span class = "special" > ()</ span >
< span class = "special" > {</ span >
< span class = "identifier" > assert</ span >< span class = "special" > (</ span >< span class = "identifier" > bind_1st</ span >< span class = "special" > (& </ span > < span class = "identifier" > test_func</ span >< span class = "special" > ,</ span >< span class = "number" > 3</ 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 = "special" > ==</ span > < span class = "number" > 0</ span >< span class = "special" > );</ span >
< span class = "identifier" > assert</ span >< span class = "special" > (</ span >< span class = "identifier" > bind_1st</ span >< span class = "special" > (</ span >< span class = "identifier" > std</ span >< span class = "special" > ::</ span >< span class = "identifier" > plus</ span >< span class = "special" > < </ span >< span class = "keyword" > float</ span >< span class = "special" > > (),</ span > < span class = "number" > 1</ span >< span class = "special" > )(</ span >< span class = "number" > 0.5f</ span >< span class = "special" > )</ span > < span class = "special" > ==</ span > < span class = "number" > 1.5f</ span >< span class = "special" > );</ span >
< span class = "special" > }</ span >
</ pre >
< a name = "fusion.functional.adapters.unfused_generic.see_also" ></ a >< h5 >
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< a name = "id668910" ></ a >
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< a href = "unfused_generic.html#fusion.functional.adapters.unfused_generic.see_also" > See
also</ a >
</ h5 >
< div class = "itemizedlist" >< ul type = "disc" >
< li >< a href = "unfused_lvalue_args.html" title = "unfused_lvalue_args" >< tt class = "computeroutput" >< span class = "identifier" > unfused_lvalue_args</ span ></ tt ></ a ></ li >
< li >< a href = "unfused_rvalue_args.html" title = "unfused_rvalue_args" >< tt class = "computeroutput" >< span class = "identifier" > unfused_rvalue_args</ span ></ tt ></ a ></ li >
< li >< a href = "unfused_typed.html" title = "unfused_typed" >< tt class = "computeroutput" >< span class = "identifier" > unfused_typed</ span ></ tt ></ a ></ li >
< li >< a href = "../../support/deduce.html" title = "deduce" >< tt class = "computeroutput" >< span class = "identifier" > deduce</ span ></ tt ></ a ></ li >
< li >< a href = "../../support/deduce_sequence.html" title = "deduce_sequence" >< tt class = "computeroutput" >< span class = "identifier" > deduce_sequence</ span ></ tt ></ a ></ li >
</ ul ></ div >
</ 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 > )
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</ p >
</ div ></ td >
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</ tr ></ table >
< hr >
< div class = "spirit-nav" >
< a accesskey = "p" href = "fused_function_object.html" >< img src = "../../../../../../../doc/html/images/prev.png" alt = "Prev" ></ a >< a accesskey = "u" href = "../adapters.html" >< img src = "../../../../../../../doc/html/images/up.png" alt = "Up" ></ a >< a accesskey = "h" href = "../../../index.html" >< img src = "../../../../../../../doc/html/images/home.png" alt = "Home" ></ a >< a accesskey = "n" href = "unfused_lvalue_args.html" >< img src = "../../../../../../../doc/html/images/next.png" alt = "Next" ></ a >
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