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< title > Bidirectional
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< a name = "fusion.sequences.concepts.bidirectional_sequence" > < / a > < a href = "bidirectional_sequence.html" title = "Bidirectional
Sequence">Bidirectional
Sequence< / a > < / h4 > < / div > < / div > < / div >
< a name = "fusion.sequences.concepts.bidirectional_sequence.description" > < / a > < h5 >
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< a name = "id477966" > < / a >
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< a href = "bidirectional_sequence.html#fusion.sequences.concepts.bidirectional_sequence.description" > Description< / a >
< / h5 >
< p >
A Bidirectional Sequence is a < a href = "forward_sequence.html" title = "Forward
Sequence">Forward
Sequence< / a > whose iterators model < a href = "../../iterators/concepts/bidirectional_iterator.html" title = "Bidirectional
Iterator">Bidirectional
Iterator< / a > .
< / p >
< a name = "fusion.sequences.concepts.bidirectional_sequence.refinement_of" > < / a > < h5 >
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< a name = "id478016" > < / a >
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< a href = "bidirectional_sequence.html#fusion.sequences.concepts.bidirectional_sequence.refinement_of" > Refinement
of< / a >
< / h5 >
< p >
< a href = "forward_sequence.html" title = "Forward
Sequence">Forward Sequence< / a >
< / p >
< div class = "variablelist" >
< p class = "title" > < b > Notation< / b > < / p >
< dl >
< dt > < span class = "term" > < tt class = "computeroutput" > < span class = "identifier" > s< / span > < / tt > < / span > < / dt >
< dd >
A Forward Sequence
< / dd >
< dt > < span class = "term" > < tt class = "computeroutput" > < span class = "identifier" > S< / span > < / tt > < / span > < / dt >
< dd >
A Forward Sequence type
< / dd >
< dt > < span class = "term" > < tt class = "computeroutput" > < span class = "identifier" > o< / span > < / tt > < / span > < / dt >
< dd >
An arbitrary object
< / dd >
< dt > < span class = "term" > < tt class = "computeroutput" > < span class = "identifier" > e< / span > < / tt > < / span > < / dt >
< dd >
A Sequence element
< / dd >
< / dl >
< / div >
< a name = "fusion.sequences.concepts.bidirectional_sequence.valid_expressions" > < / a > < h5 >
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< a name = "id478137" > < / a >
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< a href = "bidirectional_sequence.html#fusion.sequences.concepts.bidirectional_sequence.valid_expressions" > Valid
Expressions< / a >
< / h5 >
< p >
In addition to the requirements defined in < a href = "forward_sequence.html" title = "Forward
Sequence">Forward
Sequence< / a > , for any Bidirectional Sequence the following must be met:
< / p >
< div class = "informaltable" >
< h4 >
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< a name = "id478173" > < / a >
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< / h4 >
< table class = "table" >
< colgroup >
< col >
< col >
< col >
< col >
< / colgroup >
< thead > < tr >
< th > Expression< / th >
< th > Return type< / th >
< th > Type Requirements< / th >
< th > Runtime
Complexity< / th >
< / tr > < / thead >
< tbody >
< tr >
< td > < tt class = "computeroutput" > < a href = "../intrinsics/functions/begin.html" title = "begin" > < tt class = "computeroutput" > < span class = "identifier" > begin< / span > < / tt > < / a > < span class = "special" > (< / span > < span class = "identifier" > s< / span > < span class = "special" > )< / span > < / tt > < / td >
< td > < a href = "../../iterators/concepts/bidirectional_iterator.html" title = "Bidirectional
Iterator">Bidirectional
Iterator< / a > < / td >
< td > <EFBFBD> < / td >
< td > Constant< / td >
< / tr >
< tr >
< td > < tt class = "computeroutput" > < a href = "../intrinsics/functions/end.html" title = "end" > < tt class = "computeroutput" > < span class = "identifier" > end< / span > < / tt > < / a > < span class = "special" > (< / span > < span class = "identifier" > s< / span > < span class = "special" > )< / span > < / tt > < / td >
< td > < a href = "../../iterators/concepts/bidirectional_iterator.html" title = "Bidirectional
Iterator">Bidirectional
Iterator< / a > < / td >
< td > <EFBFBD> < / td >
< td > Constant< / td >
< / tr >
< tr >
< td > < tt class = "computeroutput" > < a href = "../intrinsics/functions/back.html" title = "back" > < tt class = "computeroutput" > < span class = "identifier" > back< / span > < / tt > < / a > < span class = "special" > (< / span > < span class = "identifier" > s< / span > < span class = "special" > )< / span > < / tt > < / td >
< td > Any
type< / td >
< td > <EFBFBD> < / td >
< td > Constant< / td >
< / tr >
< tr >
< td > < tt class = "computeroutput" > < a href = "../intrinsics/functions/back.html" title = "back" > < tt class = "computeroutput" > < span class = "identifier" > back< / span > < / tt > < / a > < span class = "special" > (< / span > < span class = "identifier" > s< / span > < span class = "special" > )< / span > <EFBFBD> < span class = "special" > =< / span > <EFBFBD> < span class = "identifier" > o< / span > < / tt > < / td >
< td > Any
type< / td >
< td >
< tt class = "computeroutput" > < span class = "identifier" > s< / span > < / tt >
is mutable and < tt class = "computeroutput" > < span class = "identifier" > e< / span > <EFBFBD> < span class = "special" > =< / span > <EFBFBD> < span class = "identifier" > o< / span > < / tt > ,
where < tt class = "computeroutput" > < span class = "identifier" > e< / span > < / tt > is the first
element in the sequence, is a valid expression.< / td >
< td > Constant< / td >
< / tr >
< / tbody >
< / table >
< / div >
< a name = "fusion.sequences.concepts.bidirectional_sequence.result_type_expressions" > < / a > < h5 >
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< a name = "id478478" > < / a >
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< a href = "bidirectional_sequence.html#fusion.sequences.concepts.bidirectional_sequence.result_type_expressions" > Result
Type Expressions< / a >
< / h5 >
< div class = "informaltable" >
< h4 >
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< a name = "id478502" > < / a >
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< / h4 >
< table class = "table" >
< colgroup >
< col >
< col >
< / colgroup >
< thead > < tr >
< th > Expression< / th >
< th > Compile Time Complexity< / th >
< / tr > < / thead >
< tbody >
< tr >
< td > < tt class = "computeroutput" > < a href = "../intrinsics/metafunctions/begin.html" title = "begin" > < tt class = "computeroutput" > < span class = "identifier" > result_of< / span > < span class = "special" > ::< / span > < span class = "identifier" > begin< / span > < / tt > < / a > < span class = "special" > < < / span > < span class = "identifier" > S< / span > < span class = "special" > > ::< / span > < span class = "identifier" > type< / span > < / tt > < / td >
< td > Amortized constant
time< / td >
< / tr >
< tr >
< td > < tt class = "computeroutput" > < a href = "../intrinsics/metafunctions/end.html" title = "end" > < tt class = "computeroutput" > < span class = "identifier" > result_of< / span > < span class = "special" > ::< / span > < span class = "identifier" > end< / span > < / tt > < / a > < span class = "special" > < < / span > < span class = "identifier" > S< / span > < span class = "special" > > ::< / span > < span class = "identifier" > type< / span > < / tt > < / td >
< td > Amortized constant
time< / td >
< / tr >
< tr >
< td > < tt class = "computeroutput" > < a href = "../intrinsics/metafunctions/back.html" title = "back" > < tt class = "computeroutput" > < span class = "identifier" > result_of< / span > < span class = "special" > ::< / span > < span class = "identifier" > back< / span > < / tt > < / a > < span class = "special" > < < / span > < span class = "identifier" > S< / span > < span class = "special" > > ::< / span > < span class = "identifier" > type< / span > < / tt > < / td >
< td > Amortized constant
time< / td >
< / tr >
< / tbody >
< / table >
< / div >
< a name = "fusion.sequences.concepts.bidirectional_sequence.expression_semantics" > < / a > < h5 >
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< a name = "id478720" > < / a >
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< a href = "bidirectional_sequence.html#fusion.sequences.concepts.bidirectional_sequence.expression_semantics" > Expression
Semantics< / a >
< / h5 >
< p >
The semantics of an expression are defined only where they differ from,
or are not defined in < a href = "forward_sequence.html" title = "Forward
Sequence">Forward
Sequence< / a > .
< / p >
< div class = "informaltable" >
< h4 >
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< a name = "id478759" > < / a >
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< / h4 >
< table class = "table" >
< colgroup >
< col >
< col >
< / colgroup >
< thead > < tr >
< th > Expression< / th >
< th > Semantics< / th >
< / tr > < / thead >
< tbody > < tr >
< td > < tt class = "computeroutput" > < a href = "../intrinsics/functions/back.html" title = "back" > < tt class = "computeroutput" > < span class = "identifier" > back< / span > < / tt > < / a > < span class = "special" > (< / span > < span class = "identifier" > s< / span > < span class = "special" > )< / span > < / tt > < / td >
< td > The
last element in the sequence; see < a href = "../intrinsics/functions/back.html" title = "back" > < tt class = "computeroutput" > < span class = "identifier" > back< / span > < / tt > < / a > .< / td >
< / tr > < / tbody >
< / table >
< / div >
< a name = "fusion.sequences.concepts.bidirectional_sequence.models" > < / a > < h5 >
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< a name = "id478856" > < / a >
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< a href = "bidirectional_sequence.html#fusion.sequences.concepts.bidirectional_sequence.models" > Models< / a >
< / h5 >
< div class = "itemizedlist" > < ul type = "disc" >
< li > < a href = "../adapted/std__pair.html" title = "std::pair" > < tt class = "computeroutput" > < span class = "identifier" > std< / span > < span class = "special" > ::< / span > < span class = "identifier" > pair< / span > < / tt > < / a > < / li >
< li > < a href = "../adapted/boost__array.html" title = "boost::array" > < tt class = "computeroutput" > < span class = "identifier" > boost< / span > < span class = "special" > ::< / span > < span class = "identifier" > array< / span > < / tt > < / a > < / li >
< li > < a href = "../containers/vector.html" title = "vector" > < tt class = "computeroutput" > < span class = "identifier" > vector< / span > < / tt > < / a > < / li >
< li >
< a href = "../views/iterator_range.html" title = "iterator_range" > < tt class = "computeroutput" > < span class = "identifier" > iterator_range< / span > < / tt > < / a >
(where adapted sequence is a Bidirectional Sequence)
< / li >
< li >
< a href = "../views/transform_view.html" title = "transform_view" > < tt class = "computeroutput" > < span class = "identifier" > transform_view< / span > < / tt > < / a >
(where adapted sequence is a Bidirectional Sequence)
< / li >
< li > < a href = "../views/reverse_view.html" title = "reverse_view" > < tt class = "computeroutput" > < span class = "identifier" > reverse_view< / 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 >
< td align = "right" > < small > Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden< / small > < / td >
< / tr > < / table >
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