CPXsetlogfile

Description

The routine CPXsetlogfile() modifies the log file to which messages from all four CPLEX-defined channels are written.

A call to CPXsetlogfile() is equivalent to directing output from the cpxresults, cpxwarning, cpxerror and cpxlog message channels to a single file.

The routine returns a zero on success, and a nonzero if an error occurs.

int CPXsetlogfile (CPXENVptr env, CPXFILEptr logfile_p);

Arguments

The pointer to the CPLEX environment as returned by CPXopenCPLEX().

A CPXFILEptr for the log file. This routine sets logfile_p to be the file pointer for the current log file. A NULL pointer may be passed if no log file is desired. NULL is the default value. Before calling this routine, obtain this pointer with a call to CPXfopen().

status = CPXsetlogfile (env, logfile);