XPRBnewctr

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 or XPRBaddqterm 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. (The generation of unique names will only take place if the names dictionary is enabled, see XPRBsetdictionarysize.)

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XPRBnewctr

XPRBnewctr