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97 |
97 |
98 virtual void _setSense(Sense); |
98 virtual void _setSense(Sense); |
99 virtual Sense _getSense() const; |
99 virtual Sense _getSense() const; |
100 |
100 |
101 virtual void _clear(); |
101 virtual void _clear(); |
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102 |
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103 virtual void _messageLevel(MessageLevel level); |
102 |
104 |
103 private: |
105 private: |
104 |
106 |
105 static void freeEnv(); |
107 static void freeEnv(); |
106 |
108 |
109 freeEnv(); |
111 freeEnv(); |
110 } |
112 } |
111 }; |
113 }; |
112 |
114 |
113 static FreeEnvHelper freeEnvHelper; |
115 static FreeEnvHelper freeEnvHelper; |
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116 |
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117 protected: |
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118 |
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119 int _message_level; |
114 |
120 |
115 public: |
121 public: |
116 |
122 |
117 ///Pointer to the underlying GLPK data structure. |
123 ///Pointer to the underlying GLPK data structure. |
118 LPX *lpx() {return lp;} |
124 LPX *lpx() {return lp;} |
189 ///Turns on (\c b is \c true) or off (\c b is \c false) the presolver |
195 ///Turns on (\c b is \c true) or off (\c b is \c false) the presolver |
190 /// |
196 /// |
191 ///The presolver is off by default. |
197 ///The presolver is off by default. |
192 void presolver(bool presolve); |
198 void presolver(bool presolve); |
193 |
199 |
194 ///Enum for \c messageLevel() parameter |
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195 enum MessageLevel { |
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196 /// no output (default value) |
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197 MESSAGE_NO_OUTPUT = 0, |
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198 /// error messages only |
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199 MESSAGE_ERROR_MESSAGE = 1, |
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200 /// normal output |
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201 MESSAGE_NORMAL_OUTPUT = 2, |
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202 /// full output (includes informational messages) |
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203 MESSAGE_FULL_OUTPUT = 3 |
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204 }; |
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205 |
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206 private: |
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207 |
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208 MessageLevel _message_level; |
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209 |
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210 public: |
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211 |
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212 ///Set the verbosity of the messages |
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213 |
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214 ///Set the verbosity of the messages |
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215 /// |
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216 ///\param m is the level of the messages output by the solver routines. |
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217 void messageLevel(MessageLevel m); |
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218 }; |
200 }; |
219 |
201 |
220 /// \brief Interface for the GLPK MIP solver |
202 /// \brief Interface for the GLPK MIP solver |
221 /// |
203 /// |
222 /// This class implements an interface for the GLPK MIP solver. |
204 /// This class implements an interface for the GLPK MIP solver. |
242 virtual SolveExitStatus _solve(); |
224 virtual SolveExitStatus _solve(); |
243 virtual ProblemType _getType() const; |
225 virtual ProblemType _getType() const; |
244 virtual Value _getSol(int i) const; |
226 virtual Value _getSol(int i) const; |
245 virtual Value _getSolValue() const; |
227 virtual Value _getSolValue() const; |
246 |
228 |
247 ///Enum for \c messageLevel() parameter |
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248 enum MessageLevel { |
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249 /// no output (default value) |
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250 MESSAGE_NO_OUTPUT = 0, |
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251 /// error messages only |
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252 MESSAGE_ERROR_MESSAGE = 1, |
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253 /// normal output |
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254 MESSAGE_NORMAL_OUTPUT = 2, |
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255 /// full output (includes informational messages) |
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256 MESSAGE_FULL_OUTPUT = 3 |
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257 }; |
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258 |
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259 private: |
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260 |
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261 MessageLevel _message_level; |
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262 |
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263 public: |
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264 |
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265 ///Set the verbosity of the messages |
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266 |
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267 ///Set the verbosity of the messages |
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268 /// |
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269 ///\param m is the level of the messages output by the solver routines. |
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270 void messageLevel(MessageLevel m); |
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271 }; |
229 }; |
272 |
230 |
273 |
231 |
274 } //END OF NAMESPACE LEMON |
232 } //END OF NAMESPACE LEMON |
275 |
233 |