source: lemon-1.0/doc/migration.dox @ 311:47ec522b838e

/* -*- mode: C++; indent-tabs-mode: nil; -*-
 *
 * This file is a part of LEMON, a generic C++ optimization library.
 *
 * Copyright (C) 2003-2008
 * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
 * (Egervary Research Group on Combinatorial Optimization, EGRES).
 *
 * Permission to use, modify and distribute this software is granted
 * provided that this copyright notice appears in all copies. For
 * precise terms see the accompanying LICENSE file.
 *
 * This software is provided "AS IS" with no warranty of any kind,
 * express or implied, and with no claim as to its suitability for any
 * purpose.
 *
 */

namespace lemon {
/*!

\page migration Migration from the 0.x Series

This guide gives an in depth description on what has changed compared
to the 0.x release series.

Many of these changes adjusted automatically by the
<tt>script/lemon-0.x-to-1.x.sh</tt> tool. Those requiring manual
update are typeset <b>boldface</b>.

\section migration-graph Graph Related Name Changes

- \ref concepts::Digraph "Directed graphs" are called \c Digraph and
  they have <tt>Arc</tt>s (instead of <tt>Edge</tt>s), while
  \ref concepts::Graph "undirected graphs" are called \c Graph
  (instead of \c UGraph) and they have <tt>Edge</tt>s (instead of
  <tt>UEdge</tt>s). These changes reflected thoroughly everywhere in
  the library. Namely,
  - \c Graph -> \c Digraph
    - \c %ListGraph -> \c ListDigraph, \c %SmartGraph -> \c SmartDigraph etc.
  - \c UGraph -> \c Graph
    - \c ListUGraph -> \c ListGraph, \c SmartUGraph -> \c SmartGraph etc.
  - \c Edge -> \c Arc, \c UEdge -> \c Edge
  - \c EdgeMap -> \c ArcMap, \c UEdgeMap -> \c EdgeMap
  - \c EdgeIt -> \c ArcIt, \c UEdgeIt -> \c EdgeIt
  - Class names and function names containing the words \c graph,
    \c ugraph, \e edge or \e arc should also be updated.
- <b>The two endpoints of an (\e undirected) \c Edge can be obtained by the
  <tt>u()</tt> and <tt>v()</tt> member function of the graph
  (instead of <tt>source()</tt> and <tt>target()</tt>). This change
  must be done by hand.</b>
  \n Of course, you can still use <tt>source()</tt> and <tt>target()</tt>
  for <tt>Arc</tt>s (directed edges).

\warning
<b>The <tt>script/lemon-0.x-to-1.x.sh</tt> tool replaces all instances of
the words \c graph, \c digraph, \c edge and \c arc, so it replaces them
in strings, comments etc. as well as in all identifiers.</b>

\section migration-lgf LGF tools

\section migration-search BFS, DFS and Dijkstra
- <b>Using the function interface of BFS, DFS and %Dijkstra both source and
  target nodes can be given as parameters of the <tt>run()</tt> function
  (instead of \c bfs(), \c dfs() or \c dijkstra() itself).</b>
- \ref named-templ-param "Named class template parameters" of \c Bfs,
  \c Dfs, \c Dijkstra, \c BfsVisit, \c DfsVisit are renamed to start
  with "Set" instead of "Def". Namely,
  - \c DefPredMap -> \c SetPredMap
  - \c DefDistMap -> \c SetDistMap
  - \c DefReachedMap -> \c SetReachedMap
  - \c DefProcessedMap -> \c SetProcessedMap
  - \c DefHeap -> \c SetHeap
  - \c DefStandardHeap -> \c SetStandardHeap
  - \c DefOperationTraits -> \c SetOperationTraits
  - \c DefProcessedMapToBeDefaultMap -> \c SetStandardProcessedMap

\section migration-error Exceptions and Debug tools

<b>The class hierarchy of exceptions has largely been simplified. Now,
only the i/o related tools may throw exceptions. All other exceptions
have been replaced with either the \c LEMON_ASSERT or the \c LEMON_DEBUG
macros.</b>

<b>On the other hand, the parameter order of constructors of the
exceptions has been changed. See \ref IoError and \ref FormatError for
more details.</b>

\section migration-other Others
- <b>The contents of <tt>graph_utils.h</tt> are moved to <tt>core.h</tt>
  and <tt>maps.h</tt>. <tt>core.h</tt> is included by all graph types,
  therefore it usually do not have to be included directly.</b>
- <b><tt>path_utils.h</tt> is merged to \c path.h.</b>
- <b>The semantic of the assignment operations and copy constructors of maps
  are still under discussion. So, you must copy them by hand (i.e. copy
  each entry one-by-one)</b>
- <b>The parameters of the graph copying tools (i.e. \c GraphCopy,
  \c DigraphCopy) have to be given in the from-to order.</b>
- \c copyDigraph() and \c copyGraph() are renamed to \c digraphCopy()
  and \c graphCopy(), respectively.
- <b>The interface of \ref DynArcLookUp has changed. It is now the same as
  of \ref ArcLookUp and \ref AllArcLookUp</b>
- Some map types should also been renamed. Namely,
  - \c IntegerMap -> \c RangeMap
  - \c StdMap -> \c SparseMap
  - \c FunctorMap -> \c FunctorToMap
  - \c MapFunctor -> \c MapToFunctor
  - \c ForkWriteMap -> \c ForkMap
  - \c StoreBoolMap -> \c LoggerBoolMap
- \c dim2::BoundingBox -> \c dim2::Box

*/
}