Initializing help system before first use

# getslack

Purpose
Get the slack value of a linear constraint.
Synopsis
`double getslack(XPRMcontext ctx, XPRMlinctr ctr);`
Arguments

ctx | Mosel's execution context
ctr | Reference to a linear constraint

Return value
Slack value or 0.
Further information
This function returns the slack value of a given linear constraint if the problem has been solved successfully (otherwise 0).
Related topics
getcsol, getslack.
Parent Topic Problem and solution access

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