COIN-OR::LEMON - Graph Library

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1 deleted
11 edited

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  • .hgignore

    r514 r298  
    2323lemon/stamp-h2
    2424doc/Doxyfile
    25 cmake/cmake.version
    2625.dirstamp
    2726.libs/*

  • CMakeLists.txt

    r519 r504  
    2323INCLUDE(FindDoxygen)
    2424INCLUDE(FindGhostscript)
    25 
    26 INCLUDE(CheckTypeSize)
    27 CHECK_TYPE_SIZE("long long" LONG_LONG)
    2825
    2926ENABLE_TESTING()

  • configure.ac

    r515 r503  
    2424dnl Do compilation tests using the C++ compiler.
    2525AC_LANG([C++])
    26 
    27 dnl Check the existence of long long type.
    28 AC_CHECK_TYPE(long long, [long_long_found=yes], [long_long_found=no])
    29 if test x"$long_long_found" = x"yes"; then
    30   AC_DEFINE([HAVE_LONG_LONG], [1], [Define to 1 if you have long long.])
    31 fi
    3226
    3327dnl Checks for programs.
    … …  
    123117echo C++ compiles flags............ : $CXXFLAGS
    124118echo
    125 echo Compiler supports long long... : $long_long_found
    126 echo
    127119#echo GLPK support.................. : $lx_glpk_found
    128120#echo CPLEX support................. : $lx_cplex_found

  • lemon/bits/default_map.h

    r515 r314  
    9797
    9898
    99 #if defined HAVE_LONG_LONG
     99#if defined __GNUC__ && !defined __STRICT_ANSI__
    100100
    101101  // long long

  • lemon/bits/windows.cc

    r513 r511  
    2929#define NOMINMAX
    3030#endif
    31 #ifdef UNICODE
    32 #undef UNICODE
    33 #endif
    3431#include <windows.h>
    35 #ifdef LOCALE_INVARIANT
    36 #define MY_LOCALE LOCALE_INVARIANT
    37 #else
    38 #define MY_LOCALE LOCALE_NEUTRAL
    39 #endif
    4032#else
    4133#include <unistd.h>
    … …  
    9688      SYSTEMTIME time;
    9789      GetSystemTime(&time);
    98       char buf1[11], buf2[9], buf3[5];
    99           if (GetDateFormat(MY_LOCALE, 0, &time,
    100                         ("ddd MMM dd"), buf1, 11) &&
    101           GetTimeFormat(MY_LOCALE, 0, &time,
    102                         ("HH':'mm':'ss"), buf2, 9) &&
    103           GetDateFormat(MY_LOCALE, 0, &time,
    104                         ("yyyy"), buf3, 5)) {
     90#if defined(_MSC_VER) && (_MSC_VER < 1500)
     91      LPWSTR buf1, buf2, buf3;
     92      if (GetDateFormat(LOCALE_USER_DEFAULT, 0, &time,
     93                        L"ddd MMM dd", buf1, 11) &&
     94          GetTimeFormat(LOCALE_USER_DEFAULT, 0, &time,
     95                        L"HH':'mm':'ss", buf2, 9) &&
     96          GetDateFormat(LOCALE_USER_DEFAULT, 0, &time,
     97                        L"yyyy", buf3, 5)) {
    10598        os << buf1 << ' ' << buf2 << ' ' << buf3;
    10699      }
     100#else
     101      char buf1[11], buf2[9], buf3[5];
     102      if (GetDateFormat(LOCALE_USER_DEFAULT, 0, &time,
     103                        "ddd MMM dd", buf1, 11) &&
     104          GetTimeFormat(LOCALE_USER_DEFAULT, 0, &time,
     105                        "HH':'mm':'ss", buf2, 9) &&
     106          GetDateFormat(LOCALE_USER_DEFAULT, 0, &time,
     107                        "yyyy", buf3, 5)) {
     108        os << buf1 << ' ' << buf2 << ' ' << buf3;
     109      }
     110#endif
    107111      else os << "unknown";
    108112#else

  • lemon/config.h.in

    r515 r1  
    44/* Define to 1 if you have GLPK. */
    55#undef HAVE_GLPK
    6 
    7 /* Define to 1 if you have long long */
    8 #undef HAVE_LONG_LONG

  • lemon/lgf_reader.h

    r519 r446  
    391391  class DigraphReader;
    392392
     393  /// \brief Return a \ref DigraphReader class
     394  ///
     395  /// This function just returns a \ref DigraphReader class.
     396  /// \relates DigraphReader
    393397  template <typename Digraph>
    394   DigraphReader<Digraph> digraphReader(Digraph& digraph,
    395                                        std::istream& is = std::cin);
     398  DigraphReader<Digraph> digraphReader(Digraph& digraph,
     399                                       std::istream& is = std::cin) {
     400    DigraphReader<Digraph> tmp(digraph, is);
     401    return tmp;
     402  }
     403
     404  /// \brief Return a \ref DigraphReader class
     405  ///
     406  /// This function just returns a \ref DigraphReader class.
     407  /// \relates DigraphReader
    396408  template <typename Digraph>
    397   DigraphReader<Digraph> digraphReader(Digraph& digraph, const std::string& fn);
     409  DigraphReader<Digraph> digraphReader(Digraph& digraph,
     410                                       const std::string& fn) {
     411    DigraphReader<Digraph> tmp(digraph, fn);
     412    return tmp;
     413  }
     414
     415  /// \brief Return a \ref DigraphReader class
     416  ///
     417  /// This function just returns a \ref DigraphReader class.
     418  /// \relates DigraphReader
    398419  template <typename Digraph>
    399   DigraphReader<Digraph> digraphReader(Digraph& digraph, const char *fn);
     420  DigraphReader<Digraph> digraphReader(Digraph& digraph, const char* fn) {
     421    DigraphReader<Digraph> tmp(digraph, fn);
     422    return tmp;
     423  }
    400424
    401425  /// \ingroup lemon_io
    … …  
    561585  private:
    562586
    563     template <typename DGR>
    564     friend DigraphReader<DGR> digraphReader(DGR& digraph, std::istream& is);
    565     template <typename DGR>
    566     friend DigraphReader<DGR> digraphReader(DGR& digraph,
    567                                             const std::string& fn);
    568     template <typename DGR>
    569     friend DigraphReader<DGR> digraphReader(DGR& digraph, const char *fn);
     587    friend DigraphReader<Digraph> digraphReader<>(Digraph& digraph,
     588                                                  std::istream& is);
     589    friend DigraphReader<Digraph> digraphReader<>(Digraph& digraph,
     590                                                  const std::string& fn);
     591    friend DigraphReader<Digraph> digraphReader<>(Digraph& digraph,
     592                                                  const char *fn);
    570593
    571594    DigraphReader(DigraphReader& other)
    … …  
    11901213  };
    11911214
    1192   /// \brief Return a \ref DigraphReader class
     1215  template <typename Graph>
     1216  class GraphReader;
     1217
     1218  /// \brief Return a \ref GraphReader class
    11931219  ///
    1194   /// This function just returns a \ref DigraphReader class.
    1195   /// \relates DigraphReader
    1196   template <typename Digraph>
    1197   DigraphReader<Digraph> digraphReader(Digraph& digraph, std::istream& is) {
    1198     DigraphReader<Digraph> tmp(digraph, is);
     1220  /// This function just returns a \ref GraphReader class.
     1221  /// \relates GraphReader
     1222  template <typename Graph>
     1223  GraphReader<Graph> graphReader(Graph& graph, std::istream& is = std::cin) {
     1224    GraphReader<Graph> tmp(graph, is);
    11991225    return tmp;
    12001226  }
    12011227
    1202   /// \brief Return a \ref DigraphReader class
     1228  /// \brief Return a \ref GraphReader class
    12031229  ///
    1204   /// This function just returns a \ref DigraphReader class.
    1205   /// \relates DigraphReader
    1206   template <typename Digraph>
    1207   DigraphReader<Digraph> digraphReader(Digraph& digraph,
    1208                                        const std::string& fn) {
    1209     DigraphReader<Digraph> tmp(digraph, fn);
     1230  /// This function just returns a \ref GraphReader class.
     1231  /// \relates GraphReader
     1232  template <typename Graph>
     1233  GraphReader<Graph> graphReader(Graph& graph, const std::string& fn) {
     1234    GraphReader<Graph> tmp(graph, fn);
    12101235    return tmp;
    12111236  }
    12121237
    1213   /// \brief Return a \ref DigraphReader class
     1238  /// \brief Return a \ref GraphReader class
    12141239  ///
    1215   /// This function just returns a \ref DigraphReader class.
    1216   /// \relates DigraphReader
    1217   template <typename Digraph>
    1218   DigraphReader<Digraph> digraphReader(Digraph& digraph, const char* fn) {
    1219     DigraphReader<Digraph> tmp(digraph, fn);
     1240  /// This function just returns a \ref GraphReader class.
     1241  /// \relates GraphReader
     1242  template <typename Graph>
     1243  GraphReader<Graph> graphReader(Graph& graph, const char* fn) {
     1244    GraphReader<Graph> tmp(graph, fn);
    12201245    return tmp;
    12211246  }
    1222 
    1223   template <typename Graph>
    1224   class GraphReader;
    1225  
    1226   template <typename Graph>
    1227   GraphReader<Graph> graphReader(Graph& graph,
    1228                                  std::istream& is = std::cin);
    1229   template <typename Graph>
    1230   GraphReader<Graph> graphReader(Graph& graph, const std::string& fn);
    1231   template <typename Graph>
    1232   GraphReader<Graph> graphReader(Graph& graph, const char *fn);
    12331247
    12341248  /// \ingroup lemon_io
    … …  
    13571371
    13581372  private:
    1359     template <typename GR>
    1360     friend GraphReader<GR> graphReader(GR& graph, std::istream& is);
    1361     template <typename GR>
    1362     friend GraphReader<GR> graphReader(GR& graph, const std::string& fn);
    1363     template <typename GR>
    1364     friend GraphReader<GR> graphReader(GR& graph, const char *fn);
     1373    friend GraphReader<Graph> graphReader<>(Graph& graph, std::istream& is);
     1374    friend GraphReader<Graph> graphReader<>(Graph& graph,
     1375                                            const std::string& fn);
     1376    friend GraphReader<Graph> graphReader<>(Graph& graph, const char *fn);
    13651377
    13661378    GraphReader(GraphReader& other)
    … …  
    20322044
    20332045  };
    2034 
    2035   /// \brief Return a \ref GraphReader class
    2036   ///
    2037   /// This function just returns a \ref GraphReader class.
    2038   /// \relates GraphReader
    2039   template <typename Graph>
    2040   GraphReader<Graph> graphReader(Graph& graph, std::istream& is) {
    2041     GraphReader<Graph> tmp(graph, is);
    2042     return tmp;
    2043   }
    2044 
    2045   /// \brief Return a \ref GraphReader class
    2046   ///
    2047   /// This function just returns a \ref GraphReader class.
    2048   /// \relates GraphReader
    2049   template <typename Graph>
    2050   GraphReader<Graph> graphReader(Graph& graph, const std::string& fn) {
    2051     GraphReader<Graph> tmp(graph, fn);
    2052     return tmp;
    2053   }
    2054 
    2055   /// \brief Return a \ref GraphReader class
    2056   ///
    2057   /// This function just returns a \ref GraphReader class.
    2058   /// \relates GraphReader
    2059   template <typename Graph>
    2060   GraphReader<Graph> graphReader(Graph& graph, const char* fn) {
    2061     GraphReader<Graph> tmp(graph, fn);
    2062     return tmp;
    2063   }
    20642046
    20652047  class SectionReader;

  • lemon/lgf_writer.h

    r517 r319  
    351351  class DigraphWriter;
    352352
     353  /// \brief Return a \ref DigraphWriter class
     354  ///
     355  /// This function just returns a \ref DigraphWriter class.
     356  /// \relates DigraphWriter
    353357  template <typename Digraph>
    354358  DigraphWriter<Digraph> digraphWriter(const Digraph& digraph,
    355                                        std::ostream& os = std::cout);
     359                                       std::ostream& os = std::cout) {
     360    DigraphWriter<Digraph> tmp(digraph, os);
     361    return tmp;
     362  }
     363
     364  /// \brief Return a \ref DigraphWriter class
     365  ///
     366  /// This function just returns a \ref DigraphWriter class.
     367  /// \relates DigraphWriter
    356368  template <typename Digraph>
    357369  DigraphWriter<Digraph> digraphWriter(const Digraph& digraph,
    358                                        const std::string& fn);
    359 
     370                                       const std::string& fn) {
     371    DigraphWriter<Digraph> tmp(digraph, fn);
     372    return tmp;
     373  }
     374
     375  /// \brief Return a \ref DigraphWriter class
     376  ///
     377  /// This function just returns a \ref DigraphWriter class.
     378  /// \relates DigraphWriter
    360379  template <typename Digraph>
    361380  DigraphWriter<Digraph> digraphWriter(const Digraph& digraph,
    362                                        const char* fn);
    363 
     381                                       const char* fn) {
     382    DigraphWriter<Digraph> tmp(digraph, fn);
     383    return tmp;
     384  }
    364385
    365386  /// \ingroup lemon_io
    … …  
    506527  private:
    507528
    508     template <typename DGR>
    509     friend DigraphWriter<DGR> digraphWriter(const DGR& digraph,
    510                                             std::ostream& os);
    511     template <typename DGR>
    512     friend DigraphWriter<DGR> digraphWriter(const DGR& digraph,
    513                                             const std::string& fn);
    514     template <typename DGR>
    515     friend DigraphWriter<DGR> digraphWriter(const DGR& digraph,
    516                                             const char *fn);
     529    friend DigraphWriter<Digraph> digraphWriter<>(const Digraph& digraph,
     530                                                  std::ostream& os);
     531    friend DigraphWriter<Digraph> digraphWriter<>(const Digraph& digraph,
     532                                                  const std::string& fn);
     533    friend DigraphWriter<Digraph> digraphWriter<>(const Digraph& digraph,
     534                                                  const char *fn);
    517535
    518536    DigraphWriter(DigraphWriter& other)
    … …  
    916934  };
    917935
    918   /// \brief Return a \ref DigraphWriter class
    919   ///
    920   /// This function just returns a \ref DigraphWriter class.
    921   /// \relates DigraphWriter
    922   template <typename Digraph>
    923   DigraphWriter<Digraph> digraphWriter(const Digraph& digraph,
    924                                        std::ostream& os) {
    925     DigraphWriter<Digraph> tmp(digraph, os);
     936  template <typename Graph>
     937  class GraphWriter;
     938
     939  /// \brief Return a \ref GraphWriter class
     940  ///
     941  /// This function just returns a \ref GraphWriter class.
     942  /// \relates GraphWriter
     943  template <typename Graph>
     944  GraphWriter<Graph> graphWriter(const Graph& graph,
     945                                 std::ostream& os = std::cout) {
     946    GraphWriter<Graph> tmp(graph, os);
    926947    return tmp;
    927948  }
    928949
    929   /// \brief Return a \ref DigraphWriter class
    930   ///
    931   /// This function just returns a \ref DigraphWriter class.
    932   /// \relates DigraphWriter
    933   template <typename Digraph>
    934   DigraphWriter<Digraph> digraphWriter(const Digraph& digraph,
    935                                        const std::string& fn) {
    936     DigraphWriter<Digraph> tmp(digraph, fn);
     950  /// \brief Return a \ref GraphWriter class
     951  ///
     952  /// This function just returns a \ref GraphWriter class.
     953  /// \relates GraphWriter
     954  template <typename Graph>
     955  GraphWriter<Graph> graphWriter(const Graph& graph, const std::string& fn) {
     956    GraphWriter<Graph> tmp(graph, fn);
    937957    return tmp;
    938958  }
    939959
    940   /// \brief Return a \ref DigraphWriter class
    941   ///
    942   /// This function just returns a \ref DigraphWriter class.
    943   /// \relates DigraphWriter
    944   template <typename Digraph>
    945   DigraphWriter<Digraph> digraphWriter(const Digraph& digraph,
    946                                        const char* fn) {
    947     DigraphWriter<Digraph> tmp(digraph, fn);
     960  /// \brief Return a \ref GraphWriter class
     961  ///
     962  /// This function just returns a \ref GraphWriter class.
     963  /// \relates GraphWriter
     964  template <typename Graph>
     965  GraphWriter<Graph> graphWriter(const Graph& graph, const char* fn) {
     966    GraphWriter<Graph> tmp(graph, fn);
    948967    return tmp;
    949968  }
    950 
    951   template <typename Graph>
    952   class GraphWriter;
    953 
    954   template <typename Graph>
    955   GraphWriter<Graph> graphWriter(const Graph& graph,
    956                                  std::ostream& os = std::cout);
    957   template <typename Graph>
    958   GraphWriter<Graph> graphWriter(const Graph& graph, const std::string& fn);
    959   template <typename Graph>
    960   GraphWriter<Graph> graphWriter(const Graph& graph, const char* fn);
    961969
    962970  /// \ingroup lemon_io
    … …  
    10741082  private:
    10751083
    1076     template <typename GR>
    1077     friend GraphWriter<GR> graphWriter(const GR& graph,
    1078                                        std::ostream& os);
    1079     template <typename GR>
    1080     friend GraphWriter<GR> graphWriter(const GR& graph,
    1081                                        const std::string& fn);
    1082     template <typename GR>
    1083     friend GraphWriter<GR> graphWriter(const GR& graph,
    1084                                        const char *fn);
    1085    
     1084    friend GraphWriter<Graph> graphWriter<>(const Graph& graph,
     1085                                            std::ostream& os);
     1086    friend GraphWriter<Graph> graphWriter<>(const Graph& graph,
     1087                                            const std::string& fn);
     1088    friend GraphWriter<Graph> graphWriter<>(const Graph& graph,
     1089                                            const char *fn);
     1090
    10861091    GraphWriter(GraphWriter& other)
    10871092      : _os(other._os), local_os(other.local_os), _graph(other._graph),
    … …  
    15291534    /// @}
    15301535  };
    1531 
    1532   /// \brief Return a \ref GraphWriter class
    1533   ///
    1534   /// This function just returns a \ref GraphWriter class.
    1535   /// \relates GraphWriter
    1536   template <typename Graph>
    1537   GraphWriter<Graph> graphWriter(const Graph& graph,
    1538                                  std::ostream& os) {
    1539     GraphWriter<Graph> tmp(graph, os);
    1540     return tmp;
    1541   }
    1542 
    1543   /// \brief Return a \ref GraphWriter class
    1544   ///
    1545   /// This function just returns a \ref GraphWriter class.
    1546   /// \relates GraphWriter
    1547   template <typename Graph>
    1548   GraphWriter<Graph> graphWriter(const Graph& graph, const std::string& fn) {
    1549     GraphWriter<Graph> tmp(graph, fn);
    1550     return tmp;
    1551   }
    1552 
    1553   /// \brief Return a \ref GraphWriter class
    1554   ///
    1555   /// This function just returns a \ref GraphWriter class.
    1556   /// \relates GraphWriter
    1557   template <typename Graph>
    1558   GraphWriter<Graph> graphWriter(const Graph& graph, const char* fn) {
    1559     GraphWriter<Graph> tmp(graph, fn);
    1560     return tmp;
    1561   }
    15621536
    15631537  class SectionWriter;

  • lemon/path.h

    r517 r313  
    930930
    931931    template <typename Target, typename Source,
    932               bool buildEnable = BuildTagIndicator<Target>::value>
    933     struct PathCopySelectorForward {
     932              bool buildEnable = BuildTagIndicator<Target>::value,
     933              bool revEnable = RevPathTagIndicator<Source>::value>
     934    struct PathCopySelector {
    934935      static void copy(Target& target, const Source& source) {
    935936        target.clear();
    … …  
    941942
    942943    template <typename Target, typename Source>
    943     struct PathCopySelectorForward<Target, Source, true> {
    944       static void copy(Target& target, const Source& source) {
    945         target.clear();
    946         target.build(source);
    947       }
    948     };
    949 
    950     template <typename Target, typename Source,
    951               bool buildEnable = BuildTagIndicator<Target>::value>
    952     struct PathCopySelectorBackward {
     944    struct PathCopySelector<Target, Source, false, true> {
    953945      static void copy(Target& target, const Source& source) {
    954946        target.clear();
    … …  
    960952
    961953    template <typename Target, typename Source>
    962     struct PathCopySelectorBackward<Target, Source, true> {
     954    struct PathCopySelector<Target, Source, true, false> {
     955      static void copy(Target& target, const Source& source) {
     956        target.clear();
     957        target.build(source);
     958      }
     959    };
     960
     961    template <typename Target, typename Source>
     962    struct PathCopySelector<Target, Source, true, true> {
    963963      static void copy(Target& target, const Source& source) {
    964964        target.clear();
    965965        target.buildRev(source);
    966966      }
    967     };
    968 
    969    
    970     template <typename Target, typename Source,
    971               bool revEnable = RevPathTagIndicator<Source>::value>
    972     struct PathCopySelector {
    973       static void copy(Target& target, const Source& source) {
    974         PathCopySelectorForward<Target, Source>::copy(target, source);
    975       }     
    976     };
    977 
    978     template <typename Target, typename Source>
    979     struct PathCopySelector<Target, Source, true> {
    980       static void copy(Target& target, const Source& source) {
    981         PathCopySelectorBackward<Target, Source>::copy(target, source);
    982       }     
    983967    };
    984968

  • lemon/random.h

    r517 r511  
    345345    };
    346346
     347    template <typename Result, int exp, bool pos = (exp >= 0)>
     348    struct ShiftMultiplier {
     349      static const Result multiplier() {
     350        Result res = ShiftMultiplier<Result, exp / 2>::multiplier();
     351        res *= res;
     352        if ((exp & 1) == 1) res *= static_cast<Result>(2.0);
     353        return res;
     354      }
     355    };
     356
    347357    template <typename Result, int exp>
    348     struct ShiftMultiplier {
     358    struct ShiftMultiplier<Result, exp, false> {
    349359      static const Result multiplier() {
    350360        Result res = ShiftMultiplier<Result, exp / 2>::multiplier();
    … …  
    356366
    357367    template <typename Result>
    358     struct ShiftMultiplier<Result, 0> {
     368    struct ShiftMultiplier<Result, 0, true> {
    359369      static const Result multiplier() {
    360370        return static_cast<Result>(1.0);
    … …  
    363373
    364374    template <typename Result>
    365     struct ShiftMultiplier<Result, 20> {
     375    struct ShiftMultiplier<Result, -20, true> {
    366376      static const Result multiplier() {
    367377        return static_cast<Result>(1.0/1048576.0);
    … …  
    370380
    371381    template <typename Result>
    372     struct ShiftMultiplier<Result, 32> {
     382    struct ShiftMultiplier<Result, -32, true> {
    373383      static const Result multiplier() {
    374         return static_cast<Result>(1.0/4294967296.0);
     384        return static_cast<Result>(1.0/424967296.0);
    375385      }
    376386    };
    377387
    378388    template <typename Result>
    379     struct ShiftMultiplier<Result, 53> {
     389    struct ShiftMultiplier<Result, -53, true> {
    380390      static const Result multiplier() {
    381391        return static_cast<Result>(1.0/9007199254740992.0);
    … …  
    384394
    385395    template <typename Result>
    386     struct ShiftMultiplier<Result, 64> {
     396    struct ShiftMultiplier<Result, -64, true> {
    387397      static const Result multiplier() {
    388398        return static_cast<Result>(1.0/18446744073709551616.0);
    … …  
    404414
    405415      static Result convert(RandomCore<Word>& rnd) {
    406         return Shifting<Result, shift + rest>::
     416        return Shifting<Result, - shift - rest>::
    407417          shift(static_cast<Result>(rnd() >> (bits - rest)));
    408418      }
    … …  
    414424
    415425      static Result convert(RandomCore<Word>& rnd) {
    416         return Shifting<Result, shift + bits>::
     426        return Shifting<Result, - shift - bits>::
    417427          shift(static_cast<Result>(rnd())) +
    418428          RealConversion<Result, Word, rest-bits, shift + bits>::

  • lemon/tolerance.h

    r516 r280  
    3939  ///as a result of a probably inexact computation.
    4040  ///
    41   ///The general implementation is suitable only if the data type is exact,
    42   ///like the integer types, otherwise a specialized version must be
    43   ///implemented. These specialized classes like
     41  ///This is an abstract class, it should be specialized for all
     42  ///numerical data types. These specialized classes like
    4443  ///Tolerance<double> may offer additional tuning parameters.
    4544  ///
    … …  
    4746  ///\sa Tolerance<double>
    4847  ///\sa Tolerance<long double>
     48  ///\sa Tolerance<int>
     49  ///\sa Tolerance<long long int>
     50  ///\sa Tolerance<unsigned int>
     51  ///\sa Tolerance<unsigned long long int>
    4952
    5053  template<class T>
    … …  
    6265
    6366    ///Returns \c true if \c a is \e surely strictly less than \c b
    64     static bool less(Value a,Value b) {return a<b;}
    65     ///Returns \c true if \c a is \e surely different from \c b
    66     static bool different(Value a,Value b) {return a!=b;}
    67     ///Returns \c true if \c a is \e surely positive
    68     static bool positive(Value a) {return static_cast<Value>(0) < a;}
    69     ///Returns \c true if \c a is \e surely negative
    70     static bool negative(Value a) {return a < static_cast<Value>(0);}
    71     ///Returns \c true if \c a is \e surely non-zero
    72     static bool nonZero(Value a) {return a != static_cast<Value>(0);}
     67    static bool less(Value a,Value b) {return false;}
     68    ///Returns \c true if \c a is \e surely different from \c b
     69    static bool different(Value a,Value b) {return false;}
     70    ///Returns \c true if \c a is \e surely positive
     71    static bool positive(Value a) {return false;}
     72    ///Returns \c true if \c a is \e surely negative
     73    static bool negative(Value a) {return false;}
     74    ///Returns \c true if \c a is \e surely non-zero
     75    static bool nonZero(Value a) {return false;}
    7376
    7477    ///@}
    7578
    7679    ///Returns the zero value.
    77     static Value zero() {return static_cast<Value>(0);}
     80    static Value zero() {return T();}
    7881
    7982    //   static bool finite(Value a) {}
    … …  
    236239  };
    237240
     241  ///Integer specialization of Tolerance.
     242
     243  ///Integer specialization of Tolerance.
     244  ///\sa Tolerance
     245  template<>
     246  class Tolerance<int>
     247  {
     248  public:
     249    ///\e
     250    typedef int Value;
     251
     252    ///\name Comparisons
     253    ///See \ref lemon::Tolerance "Tolerance" for more details.
     254
     255    ///@{
     256
     257    ///Returns \c true if \c a is \e surely strictly less than \c b
     258    static bool less(Value a,Value b) { return a<b;}
     259    ///Returns \c true if \c a is \e surely different from \c b
     260    static bool different(Value a,Value b) { return a!=b; }
     261    ///Returns \c true if \c a is \e surely positive
     262    static bool positive(Value a) { return 0<a; }
     263    ///Returns \c true if \c a is \e surely negative
     264    static bool negative(Value a) { return 0>a; }
     265    ///Returns \c true if \c a is \e surely non-zero
     266    static bool nonZero(Value a) { return a!=0; }
     267
     268    ///@}
     269
     270    ///Returns zero
     271    static Value zero() {return 0;}
     272  };
     273
     274  ///Unsigned integer specialization of Tolerance.
     275
     276  ///Unsigned integer specialization of Tolerance.
     277  ///\sa Tolerance
     278  template<>
     279  class Tolerance<unsigned int>
     280  {
     281  public:
     282    ///\e
     283    typedef unsigned int Value;
     284
     285    ///\name Comparisons
     286    ///See \ref lemon::Tolerance "Tolerance" for more details.
     287
     288    ///@{
     289
     290    ///Returns \c true if \c a is \e surely strictly less than \c b
     291    static bool less(Value a,Value b) { return a<b;}
     292    ///Returns \c true if \c a is \e surely different from \c b
     293    static bool different(Value a,Value b) { return a!=b; }
     294    ///Returns \c true if \c a is \e surely positive
     295    static bool positive(Value a) { return 0<a; }
     296    ///Returns \c true if \c a is \e surely negative
     297    static bool negative(Value) { return false; }
     298    ///Returns \c true if \c a is \e surely non-zero
     299    static bool nonZero(Value a) { return a!=0; }
     300
     301    ///@}
     302
     303    ///Returns zero
     304    static Value zero() {return 0;}
     305  };
     306
     307
     308  ///Long integer specialization of Tolerance.
     309
     310  ///Long integer specialization of Tolerance.
     311  ///\sa Tolerance
     312  template<>
     313  class Tolerance<long int>
     314  {
     315  public:
     316    ///\e
     317    typedef long int Value;
     318
     319    ///\name Comparisons
     320    ///See \ref lemon::Tolerance "Tolerance" for more details.
     321
     322    ///@{
     323
     324    ///Returns \c true if \c a is \e surely strictly less than \c b
     325    static bool less(Value a,Value b) { return a<b;}
     326    ///Returns \c true if \c a is \e surely different from \c b
     327    static bool different(Value a,Value b) { return a!=b; }
     328    ///Returns \c true if \c a is \e surely positive
     329    static bool positive(Value a) { return 0<a; }
     330    ///Returns \c true if \c a is \e surely negative
     331    static bool negative(Value a) { return 0>a; }
     332    ///Returns \c true if \c a is \e surely non-zero
     333    static bool nonZero(Value a) { return a!=0;}
     334
     335    ///@}
     336
     337    ///Returns zero
     338    static Value zero() {return 0;}
     339  };
     340
     341  ///Unsigned long integer specialization of Tolerance.
     342
     343  ///Unsigned long integer specialization of Tolerance.
     344  ///\sa Tolerance
     345  template<>
     346  class Tolerance<unsigned long int>
     347  {
     348  public:
     349    ///\e
     350    typedef unsigned long int Value;
     351
     352    ///\name Comparisons
     353    ///See \ref lemon::Tolerance "Tolerance" for more details.
     354
     355    ///@{
     356
     357    ///Returns \c true if \c a is \e surely strictly less than \c b
     358    static bool less(Value a,Value b) { return a<b;}
     359    ///Returns \c true if \c a is \e surely different from \c b
     360    static bool different(Value a,Value b) { return a!=b; }
     361    ///Returns \c true if \c a is \e surely positive
     362    static bool positive(Value a) { return 0<a; }
     363    ///Returns \c true if \c a is \e surely negative
     364    static bool negative(Value) { return false; }
     365    ///Returns \c true if \c a is \e surely non-zero
     366    static bool nonZero(Value a) { return a!=0;}
     367
     368    ///@}
     369
     370    ///Returns zero
     371    static Value zero() {return 0;}
     372  };
     373
     374#if defined __GNUC__ && !defined __STRICT_ANSI__
     375
     376  ///Long long integer specialization of Tolerance.
     377
     378  ///Long long integer specialization of Tolerance.
     379  ///\warning This class (more exactly, type <tt>long long</tt>)
     380  ///is not ansi compatible.
     381  ///\sa Tolerance
     382  template<>
     383  class Tolerance<long long int>
     384  {
     385  public:
     386    ///\e
     387    typedef long long int Value;
     388
     389    ///\name Comparisons
     390    ///See \ref lemon::Tolerance "Tolerance" for more details.
     391
     392    ///@{
     393
     394    ///Returns \c true if \c a is \e surely strictly less than \c b
     395    static bool less(Value a,Value b) { return a<b;}
     396    ///Returns \c true if \c a is \e surely different from \c b
     397    static bool different(Value a,Value b) { return a!=b; }
     398    ///Returns \c true if \c a is \e surely positive
     399    static bool positive(Value a) { return 0<a; }
     400    ///Returns \c true if \c a is \e surely negative
     401    static bool negative(Value a) { return 0>a; }
     402    ///Returns \c true if \c a is \e surely non-zero
     403    static bool nonZero(Value a) { return a!=0;}
     404
     405    ///@}
     406
     407    ///Returns zero
     408    static Value zero() {return 0;}
     409  };
     410
     411  ///Unsigned long long integer specialization of Tolerance.
     412
     413  ///Unsigned long long integer specialization of Tolerance.
     414  ///\warning This class (more exactly, type <tt>unsigned long long</tt>)
     415  ///is not ansi compatible.
     416  ///\sa Tolerance
     417  template<>
     418  class Tolerance<unsigned long long int>
     419  {
     420  public:
     421    ///\e
     422    typedef unsigned long long int Value;
     423
     424    ///\name Comparisons
     425    ///See \ref lemon::Tolerance "Tolerance" for more details.
     426
     427    ///@{
     428
     429    ///Returns \c true if \c a is \e surely strictly less than \c b
     430    static bool less(Value a,Value b) { return a<b;}
     431    ///Returns \c true if \c a is \e surely different from \c b
     432    static bool different(Value a,Value b) { return a!=b; }
     433    ///Returns \c true if \c a is \e surely positive
     434    static bool positive(Value a) { return 0<a; }
     435    ///Returns \c true if \c a is \e surely negative
     436    static bool negative(Value) { return false; }
     437    ///Returns \c true if \c a is \e surely non-zero
     438    static bool nonZero(Value a) { return a!=0;}
     439
     440    ///@}
     441
     442    ///Returns zero
     443    static Value zero() {return 0;}
     444  };
     445
     446#endif
     447
    238448  /// @}
    239449
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