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XPRBgetcolnum

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Purpose

Get the column number for a variable.

Synopsis

int XPRBgetcolnum(XPRBvar var);

Argument

var	BCL reference to a variable.

Return value

Column number (non-negative value), or a negative value.

Example

XPRBprob expl2;
XPRBvar x1;
int vindex;
   ...
expl2 = XPRBnewprob("example2");
x1 = XPRBnewvar(expl2, XPRB_UI, "abc3", 0, 100);
vindex = XPRBgetcolnum(x1);

This gets the column number for variable x1.

Further information

This function returns the column number of a variable in the matrix currently loaded in the Xpress-Optimizer. If the variable is not part of the matrix, or if the matrix has not yet been generated, the function returns a negative value. To check whether the matrix has been generated, use function XPRBgetprobstat. The counting of column numbers starts with 0.

Related topics

XPRBgetvarname, XPRBgetvartype.

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