Version 5.0 The LEDA User Manual

typename DataAccessor :: value type& ∗it
returns a reference to the associated value, which originally
comes from data accessor da. If the associated
iterator it is not valid, a dummy value reference is
returned and should not be used.
Precondition: access(DA, it) returns a non constant
reference to the data associated to it in DA. This
functions is defined for all implemented data accessors
(e.g. node array da, edge array da).
13.13 Node Array Data Accessor ( node array da )
1. Definition
An instance da of class node array da is instantiated with a LEDA node array.
The data in the node array can be accessed by the functions get(da, it) and
set(da, it, value) that take as parameters an instance of node array da and an iterator,
see below.
node array da::value type is a type and equals T.
For node map there is the variant node map da which is defined completely analogous
to node array da. Classes edge array da and edge map da are defined
analogously, as well.
#include < LEDA/graph/graph iterator.h >
2. Creation
node array da da;
introduces a variable da of this class that is not bound.
node array da da(leda :: node array& na);
3. Operations
introduces a variable da of this class bound to na.
T
void
get(const node array da& da, const Iter& it)
returns the associated value of it for this accessor.
set(node array da& da, const Iter& it, T val)
sets the associated value of it for this accessor to the
given value.