This data stucture represents a linear constraint in the LP. Basically it is a linear expression with a lower or an upper bound (or both). These parts of the constraint can be obtained by the member functions expr(), lowerBound() and upperBound(), respectively. There are two ways to construct a constraint.
- You can set the linear expression and the bounds directly by the functions above.
- The operators <=,==and>=are defined between expressions, or even between constraints whenever it makes sense. Therefore ifeandfare linear expressions andsandtare numbers, then the followings are valid expressions and thus they can be used directly e.g. in addRow() whenever it makes sense.*   e<=s *   e<=f *   e==f *   s<=e<=t *   e>=t *  
- Warning
- The validity of a constraint is checked only at run time, so e.g. addRow(x[1]<=x[2]<=5) will compile, but will fail an assertion.
 
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| LpBase::Constr | operator<= (const LpBase::Expr &e, const LpBase::Expr &f) | 
|  | Create constraint. 
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| LpBase::Constr | operator<= (const LpBase::Value &e, const LpBase::Expr &f) | 
|  | Create constraint. 
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| LpBase::Constr | operator<= (const LpBase::Expr &e, const LpBase::Value &f) | 
|  | Create constraint. 
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| LpBase::Constr | operator>= (const LpBase::Expr &e, const LpBase::Expr &f) | 
|  | Create constraint. 
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| LpBase::Constr | operator>= (const LpBase::Value &e, const LpBase::Expr &f) | 
|  | Create constraint. 
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| LpBase::Constr | operator>= (const LpBase::Expr &e, const LpBase::Value &f) | 
|  | Create constraint. 
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| LpBase::Constr | operator== (const LpBase::Expr &e, const LpBase::Value &f) | 
|  | Create constraint. 
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| LpBase::Constr | operator== (const LpBase::Expr &e, const LpBase::Expr &f) | 
|  | Create constraint. 
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| LpBase::Constr | operator<= (const LpBase::Value &n, const LpBase::Constr &c) | 
|  | Create constraint. 
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| LpBase::Constr | operator<= (const LpBase::Constr &c, const LpBase::Value &n) | 
|  | Create constraint. 
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| LpBase::Constr | operator>= (const LpBase::Value &n, const LpBase::Constr &c) | 
|  | Create constraint. 
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| LpBase::Constr | operator>= (const LpBase::Constr &c, const LpBase::Value &n) | 
|  | Create constraint. 
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