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< div class = "titlepage" >< div >< div >< h5 class = "title" >
< a name = "fusion.algorithm.query.functions.any" ></ a >< a href = "any.html" title = "any" > any</ a ></ h5 ></ div ></ div ></ div >
< a name = "fusion.algorithm.query.functions.any.description" ></ a >< h6 >
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< a name = "id587147" ></ a >
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< a href = "any.html#fusion.algorithm.query.functions.any.description" > Description</ a >
</ h6 >
< p >
For a sequence < tt class = "computeroutput" >< span class = "identifier" > seq</ span ></ tt > and
unary function object < tt class = "computeroutput" >< span class = "identifier" > f</ span ></ tt > ,
< tt class = "computeroutput" >< span class = "identifier" > any</ span ></ tt > returns true if
< tt class = "computeroutput" >< span class = "identifier" > f</ span ></ tt > returns true for at
least one element of < tt class = "computeroutput" >< span class = "identifier" > seq</ span ></ tt > .
</ p >
< a name = "fusion.algorithm.query.functions.any.synopsis" ></ a >< h6 >
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< a name = "id587236" ></ a >
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< a href = "any.html#fusion.algorithm.query.functions.any.synopsis" > Synopsis</ a >
</ h6 >
< 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" > F</ span >
< span class = "special" > > </ span >
< span class = "keyword" > typename</ span > < a href = "../metafunctions/any.html" title = "any" >< tt class = "computeroutput" >< span class = "identifier" > result_of</ span >< span class = "special" > ::</ span >< span class = "identifier" > any</ span ></ tt ></ a >< span class = "special" > < </ span >< span class = "identifier" > Sequence</ span >< span class = "special" > ,</ span >< span class = "identifier" > F</ span >< span class = "special" > > ::</ span >< span class = "identifier" > type</ span > < span class = "identifier" > any</ span >< span class = "special" > (</ span >
< span class = "identifier" > Sequence</ span > < span class = "keyword" > const</ span >< span class = "special" > & </ span > < span class = "identifier" > seq</ span >< span class = "special" > ,</ span > < span class = "identifier" > F</ span > < span class = "identifier" > f</ span >< span class = "special" > );</ span >
</ pre >
< div class = "table" >
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< a name = "id587429" ></ a >< p class = "title" >< b > Table </ b ></ p >
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< table class = "table" summary = "Parameters" >
< colgroup >
< col >
< col >
< col >
</ colgroup >
< thead >< tr >
< th >
< p >
Parameter
</ p >
</ th >
< th >
< p >
Requirement
</ p >
</ th >
< th >
< p >
Description
</ p >
</ th >
</ tr ></ thead >
< tbody >
< tr >
< td >
< p >
< tt class = "computeroutput" >< span class = "identifier" > seq</ span ></ tt >
</ p >
</ td >
< td >
< p >
A model of < a href = "../../../sequence/concepts/forward_sequence.html" title = "Forward
Sequence" > Forward
Sequence</ a > , < tt class = "computeroutput" >< span class = "identifier" > f</ span >< span class = "special" > (</ span >< span class = "identifier" > e</ span >< span class = "special" > )</ span ></ tt > must be a valid expression, convertible
to < tt class = "computeroutput" >< span class = "keyword" > bool</ span ></ tt > , for each
element < tt class = "computeroutput" >< span class = "identifier" > e</ span ></ tt > in < tt class = "computeroutput" >< span class = "identifier" > seq</ span ></ tt >
</ p >
</ td >
< td >
< p >
The sequence to search
</ p >
</ td >
</ tr >
< tr >
< td >
< p >
< tt class = "computeroutput" >< span class = "identifier" > f</ span ></ tt >
</ p >
</ td >
< td >
< p >
A unary function object
</ p >
</ td >
< td >
< p >
The search predicate
</ p >
</ td >
</ tr >
</ tbody >
</ table >
</ div >
< a name = "fusion.algorithm.query.functions.any.expression_semantics" ></ a >< h6 >
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< a name = "id587631" ></ a >
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< a href = "any.html#fusion.algorithm.query.functions.any.expression_semantics" > Expression
semantics</ a >
</ h6 >
< pre class = "programlisting" >
< a href = "any.html" title = "any" >< tt class = "computeroutput" >< span class = "identifier" > any</ span ></ tt ></ a >< span class = "special" > (</ span >< span class = "identifier" > seq</ span >< span class = "special" > ,</ span > < span class = "identifier" > f</ span >< span class = "special" > );</ span >
</ pre >
< p >
< span class = "bold" >< b > Return type</ b ></ span > : < tt class = "computeroutput" >< span class = "keyword" > bool</ span ></ tt >
</ p >
< p >
< span class = "bold" >< b > Semantics</ b ></ span > : Returns true if and only
if < tt class = "computeroutput" >< span class = "identifier" > f</ span >< span class = "special" > (</ span >< span class = "identifier" > e</ span >< span class = "special" > )</ span ></ tt >
evaluates to < tt class = "computeroutput" >< span class = "keyword" > true</ span ></ tt > for some
element < tt class = "computeroutput" >< span class = "identifier" > e</ span ></ tt > in < tt class = "computeroutput" >< span class = "identifier" > seq</ span ></ tt > .
</ p >
< a name = "fusion.algorithm.query.functions.any.complexity" ></ a >< h6 >
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< a name = "id587800" ></ a >
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< a href = "any.html#fusion.algorithm.query.functions.any.complexity" > Complexity</ a >
</ h6 >
< p >
Linear. At most < tt class = "computeroutput" >< a href = "../../../sequence/intrinsic/metafunctions/size.html" title = "size" >< tt class = "computeroutput" >< span class = "identifier" > result_of</ span >< span class = "special" > ::</ span >< span class = "identifier" > size</ span ></ tt ></ a >< span class = "special" > < </ span >< span class = "identifier" > Sequence</ span >< span class = "special" > > ::</ span >< span class = "identifier" > value</ span ></ tt > comparisons.
</ p >
< a name = "fusion.algorithm.query.functions.any.header" ></ a >< h6 >
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< a name = "id587883" ></ a >
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< a href = "any.html#fusion.algorithm.query.functions.any.header" > Header</ a >
</ h6 >
< 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" > algorithm</ span >< span class = "special" > /</ span >< span class = "identifier" > query</ span >< span class = "special" > /</ span >< span class = "identifier" > any</ 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" > any</ span >< span class = "special" > .</ span >< span class = "identifier" > hpp</ span >< span class = "special" > > </ span >
</ pre >
< a name = "fusion.algorithm.query.functions.any.example" ></ a >< h6 >
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< a name = "id588051" ></ a >
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< a href = "any.html#fusion.algorithm.query.functions.any.example" > Example</ a >
</ h6 >
< pre class = "programlisting" >
< span class = "keyword" > struct</ span > < span class = "identifier" > odd</ span >
< span class = "special" > {</ span >
< span class = "keyword" > template</ span >< span class = "special" > < </ span >< span class = "keyword" > typename</ span > < span class = "identifier" > T</ span >< span class = "special" > > </ span >
< span class = "keyword" > bool</ span > < span class = "keyword" > operator</ span >< span class = "special" > ()(</ span >< span class = "identifier" > T</ span > < span class = "identifier" > t</ span >< span class = "special" > )</ span > < span class = "keyword" > const</ span >
< span class = "special" > {</ span >
< span class = "keyword" > return</ span > < span class = "identifier" > t</ span > < span class = "special" > %</ span > < span class = "number" > 2</ span >< span class = "special" > ;</ span >
< span class = "special" > }</ span >
< span class = "special" > };</ span >
< span class = "special" > ...</ span >
< span class = "identifier" > assert</ span >< span class = "special" > (</ span >< a href = "any.html" title = "any" >< tt class = "computeroutput" >< span class = "identifier" > any</ span ></ tt ></ a >< span class = "special" > (</ span >< a href = "../../../container/generation/functions/make_vector.html" title = "make_vector" >< tt class = "computeroutput" >< span class = "identifier" > make_vector</ span ></ tt ></ a >< span class = "special" > (</ span >< span class = "number" > 1</ span >< span class = "special" > ,</ span >< span class = "number" > 2</ span >< span class = "special" > ),</ span > < span class = "identifier" > odd</ span >< span class = "special" > ()));</ span >
< span class = "identifier" > assert</ span >< span class = "special" > (!</ span >< a href = "any.html" title = "any" >< tt class = "computeroutput" >< span class = "identifier" > any</ span ></ tt ></ a >< span class = "special" > (</ span >< a href = "../../../container/generation/functions/make_vector.html" title = "make_vector" >< tt class = "computeroutput" >< span class = "identifier" > make_vector</ span ></ tt ></ a >< span class = "special" > (</ span >< span class = "number" > 2</ span >< span class = "special" > ,</ span >< span class = "number" > 4</ span >< span class = "special" > ),</ span > < span class = "identifier" > odd</ span >< span class = "special" > ()));</ span >
</ pre >
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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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