1 /* $Id$ */
2 /*
3 * Name: exprMinMax.cpp
4 * Author: Pietro Belotti
5 * Purpose: definition of min and max operators
6 *
7 * (C) Carnegie-Mellon University, 2006.
8 * This file is licensed under the Eclipse Public License (EPL)
9 */
10
11 #include "OsiSolverInterface.hpp"
12
13 #include "CouenneCutGenerator.hpp"
14 #include "CouenneTypes.hpp"
15 #include "CouenneExprMax.hpp"
16 #include "CouenneExprMin.hpp"
17 #include "CouenneExprConst.hpp"
18
19 using namespace Couenne;
20
21 // Get lower and upper bound of an expression (if any)
getBounds(expression * & lower,expression * & upper)22 void exprMin::getBounds (expression *&lower, expression *&upper) {
23 lower = new exprConst (-COIN_DBL_MAX);
24 upper = new exprConst ( COIN_DBL_MAX);
25 }
26
27
28 // Get lower and upper bound of an expression (if any)
getBounds(expression * & lower,expression * & upper)29 void exprMax::getBounds (expression *&lower, expression *&upper) {
30 lower = new exprConst (-COIN_DBL_MAX);
31 upper = new exprConst ( COIN_DBL_MAX);
32 }
33
34
generateCuts(expression * w,OsiCuts & cs,const CouenneCutGenerator * cg,t_chg_bounds * chg,int,CouNumber,CouNumber)35 void exprMin::generateCuts (expression *w, //const OsiSolverInterface &si,
36 OsiCuts &cs, const CouenneCutGenerator *cg,
37 t_chg_bounds *chg, int,
38 CouNumber, CouNumber)
39 {}
40
41
generateCuts(expression * w,OsiCuts & cs,const CouenneCutGenerator * cg,t_chg_bounds * chg,int,CouNumber,CouNumber)42 void exprMax::generateCuts (expression *w, //const OsiSolverInterface &si,
43 OsiCuts &cs, const CouenneCutGenerator *cg,
44 t_chg_bounds *chg, int,
45 CouNumber, CouNumber)
46 {}
47