QSopt QSchange_objsense QSopt > Callable Library > Function List
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Purpose
Change the sense of the objective function.
Synopsis
int QSchange_objsense (QSprob p, int newsense)
Arguments
p a handle to an initialized problem.
newsense the new sense of the objective; to specify a minimization problem set newsense to QS_MIN (that is, 1) and to specify a maximization problem set newsense to QS_MAX (that is, -1).
Returns
A zero value if the function terminated correctly, and a non-zero value if an error occurred.
Description

Use this function to switch from minimizing the objective function to maximizing the objective function, and vice versa.

Example
/* p is an initialized QSprob, change it to maximization */

int rval;

rval = QSchange_sense (p, QS_MAX);
if (rval) {
    fprintf (stderr, 
             "QSchange_objsense failed with return code %d\n", rval);
}
 
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Last Updated: November 2003