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XPRBnewctr

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Purpose

Create a new constraint.

Synopsis

XPRBctr XPRBnewctr(XPRBprob prob, const char *name, int qrtype);

Arguments

prob	Reference to a problem.
name	The constraint name (of unlimited length). May be NULL if not required.
type	Type of the constraint, which must be one of XPRB_L  `less than or equal to' inequality; XPRB_G  `greater than or equal to' inequality; XPRB_E  equality; XPRB_N  a non-binding row (objective function).

Return value

Reference to the new constraint if function executed successfully, NULL otherwise.

Example

The following creates a new equality constraint.

XPRBprob prob;
XPRBctr ctr1;
 ...
ctr1 = XPRBnewctr(prob, "r1", XPRB_E);

Further information

This function creates a new constraint and returns the reference to this constraint, i.e. the constraint's model name. It has to be called before XPRBaddterm is used to add terms to the constraint. Range constraints can first be created with any type and then converted using the function XPRBsetrange. If the indicated name is already in use, BCL adds an index to it. If no constraint name is given, BCL generates a default name starting with CTR.

Related topics

XPRBaddterm, XPRBdelctr, XPRBdelterm.

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