XSLPcascade
XSLPcascade |
int XPRS_CC XSLPcascade(XSLPprob Prob);
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Prob
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The current SLP problem.
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The following example changes the solution value for column 91, and then re-calculates the values of those dependent on it.
int ColNum;
double Value;
ColNum = 91;
XSLPgetvar(Prob, ColNum, NULL, NULL, NULL, NULL,
NULL, NULL, &Value, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL);
Value = Value + 1.42;
XSLPchgvar(Prob, ColNum, NULL, NULL, NULL, NULL,
NULL, NULL, &Value, NULL, NULL, NULL,
NULL);
XSLPcascade(Prob);
XSLPgetvar and XSLPchgvar are being used to get and change the current value of a single variable.
Provided no other values have been changed since the last execution of XSLPcascade, values will be changed only for variables which depend on column 91.
See the section on cascading for an extended discussion of the types of cascading which can be performed.
XSLPcascade is called automatically during the SLP iteration process and so it is not normally necessary to perform an explicit cascade calculation.
The variables are re-calculated in accordance with the order generated by XSLPcascadeorder.
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