doc/migration.dox
author Alpar Juttner <alpar@cs.elte.hu>
Wed, 28 Nov 2012 11:54:43 +0100
changeset 970 d216e1c8b3fa
parent 343 956a29f30887
permissions -rw-r--r--
Merge #453 to branches >=1.2
     1 /* -*- mode: C++; indent-tabs-mode: nil; -*-
     2  *
     3  * This file is a part of LEMON, a generic C++ optimization library.
     4  *
     5  * Copyright (C) 2003-2009
     6  * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
     7  * (Egervary Research Group on Combinatorial Optimization, EGRES).
     8  *
     9  * Permission to use, modify and distribute this software is granted
    10  * provided that this copyright notice appears in all copies. For
    11  * precise terms see the accompanying LICENSE file.
    12  *
    13  * This software is provided "AS IS" with no warranty of any kind,
    14  * express or implied, and with no claim as to its suitability for any
    15  * purpose.
    16  *
    17  */
    18 
    19 namespace lemon {
    20 /*!
    21 
    22 \page migration Migration from the 0.x Series
    23 
    24 This guide gives an in depth description on what has changed compared
    25 to the 0.x release series.
    26 
    27 Many of these changes adjusted automatically by the
    28 <tt>lemon-0.x-to-1.x.sh</tt> tool. Those requiring manual
    29 update are typeset <b>boldface</b>.
    30 
    31 \section migration-graph Graph Related Name Changes
    32 
    33 - \ref concepts::Digraph "Directed graphs" are called \c Digraph and
    34   they have <tt>Arc</tt>s (instead of <tt>Edge</tt>s), while
    35   \ref concepts::Graph "undirected graphs" are called \c Graph
    36   (instead of \c UGraph) and they have <tt>Edge</tt>s (instead of
    37   <tt>UEdge</tt>s). These changes reflected thoroughly everywhere in
    38   the library. Namely,
    39   - \c Graph -> \c Digraph
    40     - \c %ListGraph -> \c ListDigraph, \c %SmartGraph -> \c SmartDigraph etc.
    41   - \c UGraph -> \c Graph
    42     - \c ListUGraph -> \c ListGraph, \c SmartUGraph -> \c SmartGraph etc.
    43   - \c Edge -> \c Arc, \c UEdge -> \c Edge
    44   - \c EdgeMap -> \c ArcMap, \c UEdgeMap -> \c EdgeMap
    45   - \c EdgeIt -> \c ArcIt, \c UEdgeIt -> \c EdgeIt
    46   - Class names and function names containing the words \c graph,
    47     \c ugraph, \e edge or \e arc should also be updated.
    48 - <b>The two endpoints of an (\e undirected) \c Edge can be obtained by the
    49   <tt>u()</tt> and <tt>v()</tt> member function of the graph
    50   (instead of <tt>source()</tt> and <tt>target()</tt>). This change
    51   must be done by hand.</b>
    52   \n Of course, you can still use <tt>source()</tt> and <tt>target()</tt>
    53   for <tt>Arc</tt>s (directed edges).
    54 
    55 \warning
    56 <b>The <tt>lemon-0.x-to-1.x.sh</tt> script replaces the words \c graph,
    57 \c ugraph, \c edge and \c uedge in your own identifiers and in
    58 strings, comments etc. as well as in all LEMON specific identifiers.
    59 So use the script carefully and make a backup copy of your source files
    60 before applying the script to them.</b>
    61 
    62 \section migration-lgf LGF tools
    63  - The \ref lgf-format "LGF file format" has changed,
    64    <tt>\@nodeset</tt> has changed to <tt>\@nodes</tt>,
    65    <tt>\@edgeset</tt> and <tt>\@uedgeset</tt> to <tt>\@arcs</tt> or
    66    <tt>\@edges</tt>, which become completely equivalents. The
    67    <tt>\@nodes</tt>, <tt>\@edges</tt> and <tt>\@uedges</tt> sections are
    68    removed from the format, the content of them should be
    69    the part of <tt>\@attributes</tt> section. The data fields in
    70    the sections must follow a strict format, they must be either character
    71    sequences without whitespaces or quoted strings.
    72  - The <tt>LemonReader</tt> and <tt>LemonWriter</tt> core interfaces
    73    are no longer available.
    74  - The implementation of the general section readers and writers has changed
    75    they are simple functors now. Beside the old
    76    stream based section handling, currently line oriented section
    77    reading and writing are also supported. In the
    78    section readers the lines must be counted manually. The sections
    79    should be read and written with the SectionWriter and SectionReader
    80    classes.
    81  - Instead of the item readers and writers, item converters should be
    82    used. The converters are functors, which map the type to
    83    std::string or std::string to the type. The converters for standard
    84    containers hasn't yet been implemented in the new LEMON. The converters
    85    can return strings in any format, because if it is necessary, the LGF
    86    writer and reader will quote and unquote the given value.
    87  - The DigraphReader and DigraphWriter can used similarly to the
    88    0.x series, however the <tt>read</tt> or <tt>write</tt> prefix of
    89    the member functions are removed.
    90  - The new LEMON supports the function like interface, the \c
    91    digraphReader and \c digraphWriter functions are more convenient than
    92    using the classes directly.
    93 
    94 \section migration-search BFS, DFS and Dijkstra
    95 - <b>Using the function interface of BFS, DFS and %Dijkstra both source and
    96   target nodes can be given as parameters of the <tt>run()</tt> function
    97   (instead of \c bfs(), \c dfs() or \c dijkstra() itself).</b>
    98 - \ref named-templ-param "Named class template parameters" of \c Bfs,
    99   \c Dfs, \c Dijkstra, \c BfsVisit, \c DfsVisit are renamed to start
   100   with "Set" instead of "Def". Namely,
   101   - \c DefPredMap -> \c SetPredMap
   102   - \c DefDistMap -> \c SetDistMap
   103   - \c DefReachedMap -> \c SetReachedMap
   104   - \c DefProcessedMap -> \c SetProcessedMap
   105   - \c DefHeap -> \c SetHeap
   106   - \c DefStandardHeap -> \c SetStandardHeap
   107   - \c DefOperationTraits -> \c SetOperationTraits
   108   - \c DefProcessedMapToBeDefaultMap -> \c SetStandardProcessedMap
   109 
   110 \section migration-error Exceptions and Debug tools
   111 
   112 <b>The class hierarchy of exceptions has largely been simplified. Now,
   113 only the i/o related tools may throw exceptions. All other exceptions
   114 have been replaced with either the \c LEMON_ASSERT or the \c LEMON_DEBUG
   115 macros.</b>
   116 
   117 <b>On the other hand, the parameter order of constructors of the
   118 exceptions has been changed. See \ref IoError and \ref FormatError for
   119 more details.</b>
   120 
   121 \section migration-other Others
   122 - <b>The contents of <tt>graph_utils.h</tt> are moved to <tt>core.h</tt>
   123   and <tt>maps.h</tt>. <tt>core.h</tt> is included by all graph types,
   124   therefore it usually do not have to be included directly.</b>
   125 - <b><tt>path_utils.h</tt> is merged to \c path.h.</b>
   126 - <b>The semantic of the assignment operations and copy constructors of maps
   127   are still under discussion. So, you must copy them by hand (i.e. copy
   128   each entry one-by-one)</b>
   129 - <b>The parameters of the graph copying tools (i.e. \c GraphCopy,
   130   \c DigraphCopy) have to be given in the from-to order.</b>
   131 - \c copyDigraph() and \c copyGraph() are renamed to \c digraphCopy()
   132   and \c graphCopy(), respectively.
   133 - <b>The interface of \ref DynArcLookUp has changed. It is now the same as
   134   of \ref ArcLookUp and \ref AllArcLookUp</b>
   135 - Some map types should also been renamed. Namely,
   136   - \c IntegerMap -> \c RangeMap
   137   - \c StdMap -> \c SparseMap
   138   - \c FunctorMap -> \c FunctorToMap
   139   - \c MapFunctor -> \c MapToFunctor
   140   - \c ForkWriteMap -> \c ForkMap
   141   - \c StoreBoolMap -> \c LoggerBoolMap
   142 - \c dim2::BoundingBox -> \c dim2::Box
   143 
   144 */
   145 }