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XSLPchgrow

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Purpose

Change the status setting of a constraint

Synopsis

int XPRS_CC XSLPchgrow(XSLPprob Prob, int RowIndex, int *Status);

Arguments

Prob	The current SLP problem.
RowIndex	The index of the matrix row to be changed. This respects the setting of XPRS_CSTYLE.
Status	Address of an integer holding a bitmap with the new status settings. If the status is to be changed, always get the current status first (use XSLPgetrow) and then change settings as required. The only settings likely to be changed are: Bit 11  Set if row must not have a penalty error vector. This is the equivalent of an enforced constraint (SLPDATA type EC).

Example

The following example changes the status of row 9 to be an enforced constraint.

int RowIndex, Status;
RowIndex = 9;
XSLPgetrow(Prob,RowIndex,&Status);
Status = Status | (1<<11);
XSLPchgrow(Prob,RowIndex,&Status);

Further information

If Status is NULL the current status will remain unchanged.

Related topics

XSLPgetrow

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