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XPRBgetcolnum

XPRBgetcolnum

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.

Parent Topic BCL C library functions

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