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CPXunscaleprob

public int CPXunscaleprob(CPXCENVptr env, CPXLPptr lp)
Definition file: cplex.h
Note

This is an advanced routine. Advanced routines typically demand a thorough understanding of the algorithms used by ILOG CPLEX. Thus they incur a higher risk of incorrect behavior in your application, behavior that can be difficult to debug. Therefore, ILOG encourages you to consider carefully whether you can accomplish the same task by means of other Callable Library routines instead.

The routine CPXunscaleprob removes any scaling that ILOG CPLEX has applied to the resident problem and its associated data. A side effect is that if there is a resident solution, any associated factorization is discarded and the solution itself is deactivated, meaning that it can no longer be accessed with a call to CPXsolution, nor by any other query routine. However, any starting point information for the current solution (such as an associated basis) is retained.

Parameters:

env

The pointer to the ILOG CPLEX environment, as returned by CPXopenCPLEX.

lp

A pointer to a CPLEX LP problem object, as returned by CPXcreateprob.

Returns:

The routine returns zero if successful and nonzero if an error occurs.