COIN-OR::LEMON - Graph Library

Changeset 1063:1782aa72495a in lemon-main for lemon/lp_base.h


Ignore:
Timestamp:
07/20/12 17:09:01 (8 years ago)
Author:
Alpar Juttner <alpar@…>
Branch:
default
Phase:
public
Message:

Add file export funcionality to LpBase? (#457)

File:
1 edited

Legend:

Unmodified
Added
Removed
  • lemon/lp_base.h

    r989 r1063  
    10081008  public:
    10091009
     1010    ///\e
     1011    class UnsupportedFormatError : public Exception
     1012    {
     1013      std::string _format;
     1014      mutable std::string _what;
     1015    public:
     1016      explicit UnsupportedFormatError(std::string format) throw()
     1017        : _format(format) { }
     1018      virtual ~UnsupportedFormatError() throw() {}
     1019      virtual const char* what() const throw() {
     1020        try {
     1021          _what.clear();
     1022          std::ostringstream oss;
     1023          oss << "lemon::UnsupportedFormatError: " << _format;
     1024          _what = oss.str();
     1025        }
     1026        catch (...) {}
     1027        if (!_what.empty()) return _what.c_str();
     1028        else return "lemon::UnsupportedFormatError";
     1029      }
     1030    };
     1031   
     1032  protected:
     1033    virtual void _write(std::string, std::string format) const
     1034    {
     1035      throw UnsupportedFormatError(format);
     1036    }
     1037   
     1038  public:
     1039
    10101040    /// Virtual destructor
    10111041    virtual ~LpBase() {}
     
    15561586    void min() { _setSense(MIN); }
    15571587
    1558     ///Clears the problem
     1588    ///Clear the problem
    15591589    void clear() { _clear(); rows.clear(); cols.clear(); }
    15601590
    1561     /// Sets the message level of the solver
     1591    /// Set the message level of the solver
    15621592    void messageLevel(MessageLevel level) { _messageLevel(level); }
     1593
     1594    /// Write the problem to a file in the given format
     1595
     1596    /// This function writes the problem to a file in the given format.
     1597    /// Different solver backends may support different formats.
     1598    /// Trying to write in an unsupported format will trigger
     1599    /// \ref UnsupportedFormatError. For the supported formats,
     1600    /// visit the documentation of the base class of the related backends
     1601    /// (\ref CplexBase, \ref GlpkBase etc.)
     1602    /// \param file The file path
     1603    /// \param format The output file format.
     1604    void write(std::string file, std::string format = "MPS") const
     1605    {
     1606      _write(file.c_str(),format.c_str());
     1607    }
    15631608
    15641609    ///@}
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