CPXobjsa

int CPXPUBLIC CPXobjsa(CPXCENVptr env, CPXCLPptr lp, int begin, int end, double * lower, double * upper)

Definition file: cplex.h

Include files: cplex.h

The routine CPXobjsa is used to access upper and lower sensitivity ranges for objective function coefficients for a specified range of variable indices. The beginning and end of the range of variable indices must be specified.

Note

Information for variable j, where begin ≤ j ≤ end, is returned in position (j-begin) of the arrays lower and upper.

Example

 status = CPXobjsa (env, lp, 0, CPXgetnumcols(env,lp)-1,
                    lower, upper);

Parameters:

env	A pointer to the CPLEX environment as returned by `CPXopenCPLEX`.
lp	A pointer to a CPLEX problem object as returned by `CPXcreateprob`.
begin	An integer indicating the beginning of the range of ranges to be returned.
end	An integer indicating the end of the range of ranges to be returned.
lower	An array where the objective function lower range values are to be returned. This array must be of length at least `(end - begin + 1)`.
upper	An array where the objective function upper range values are to be returned. This array must be of length at least `(end - begin + 1)`.

Returns:

The routine returns zero on success and nonzero if an error occurs. This routine fails if no optimal basis exists.