Initializing help system before first use

# getvarnum

Purpose
Get the column number of a decision variable.
Synopsis
`int getvarnum(XPRMcontext ctx, XPRMmpvar var);`
Arguments

ctx | Mosel's execution context
var | Reference to a variable

Return value
The column number ( ≥ 0) of the decision variable, or a negative value.
Further information
This function returns the column number of a decision variable. A negative value is returned if no problem is available or if the variable does not belong to the current problem.
Related topics
getctrnum.
Parent Topic Problem and solution access

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