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The routine CPXdisplayiis is used to send IIS output to a
CPLEX message channel. The IIS must already have been computed using a call
to CPXfindiis or CPXiiswrite. Two different
levels of output are available, corresponding to the output written to the
log file and an IIS file in the CPLEX Interactive Optimizer. Thus,
CPXdisplayiis enables the user to use CPLEX IIS output
formats in a Callable Library application. If neither of these formats is
appropriate, the information provided by the routine
CPXgetiis can be used to create customized IIS output.
| Value | Symbolic Constant | Meaning |
1 | CPXIIS_TERSE | Displays the names of the rows and columns in the IIS |
2 | CPXIIS_VERBOSE | Displays an LP format file containing the IIS |
Example
status = CPXdisplayiis (env, lp, mychannel, CPXIIS_TERSE);
| env | A pointer to the CPLEX environment as returned by |
| lp | A pointer to a CPLEX problem object as returned by |
| channel | The pointer to the message channel receiving the IIS output. |
| display | An integer indicating the type of output desired. |