XPRSsetlogfile (SETLOGFILE)
XPRSsetlogfile |
SETLOGFILE |
Purpose
Synopsis
int XPRS_CC XPRSsetlogfile(XPRSprob prob, const char *filename);
SETLOGFILE filename
Arguments
|
prob
|
The current problem.
|
|
filename
|
A string of up to
MAXPROBNAMELENGTH characters containing the file name to which all logging output should be written. If set to
NULL, redirection of the output will stop and all screen output will be turned back on (except for DLL users where screen output is always turned off).
|
Example
The following directs output to the file
logfile.log:
XPRSinit(NULL); XPRScreateprob(&prob); XPRSsetlogfile(prob,"logfile.log");
Further information
1. It is recommended that a log file be set up for each problem being worked on, since it provides a means for obtaining any
errors or warnings output by the Optimizer during the solution process.
2. If output is redirected with
XPRSsetlogfile all screen output will be turned off.
3. Alternatively, an output callback can be defined using
XPRSaddcbmessage, which will be called every time a line of text is output. Defining a user output callback will turn all screen output off. To discard all output messages the
OUTPUTLOG integer control can be set to
0.
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