/** problem reading method of reader */
static
SCIP_DECL_READERREAD(readerReadFix)
{ /*lint --e{715}*/
assert(reader != NULL);
assert(strcmp(SCIPreaderGetName(reader), READER_NAME) == 0);
assert(result != NULL);
*result = SCIP_DIDNOTRUN;
if( SCIPgetStage(scip) < SCIP_STAGE_PROBLEM )
{
SCIPerrorMessage("reading of fixing file is only possible after a problem was created\n");
return SCIP_READERROR;
}
/* free transformed problem, s.t. fixings are applied to the original problem */
SCIP_CALL( SCIPfreeTransform(scip) );
/* read (partial) solution from fixing file */
SCIP_CALL( readSol(scip, filename) );
*result = SCIP_SUCCESS;
return SCIP_OKAY;
}
/** reads a diff file */
static
SCIP_RETCODE readDiffFile(
SCIP* scip, /**< SCIP data structure */
LPINPUT* lpinput, /**< LP reading data */
const char* filename /**< name of the input file */
)
{
assert(lpinput != NULL);
/* open file */
lpinput->file = SCIPfopen(filename, "r");
if( lpinput->file == NULL )
{
SCIPerrorMessage("cannot open file <%s> for reading\n", filename);
SCIPprintSysError(filename);
return SCIP_NOFILE;
}
/* free transformed problem */
if( SCIPgetStage(scip) >= SCIP_STAGE_PROBLEM )
{
SCIP_CALL( SCIPfreeTransform(scip) );
}
/* parse the file */
lpinput->section = LP_START;
while( lpinput->section != LP_END && !hasError(lpinput) )
{
switch( lpinput->section )
{
case LP_START:
SCIP_CALL( readStart(scip, lpinput) );
break;
case LP_OBJECTIVE:
SCIP_CALL( readObjective(scip, lpinput) );
break;
case LP_END: /* this is already handled in the while() loop */
default:
SCIPerrorMessage("invalid Diff file section <%d>\n", lpinput->section);
return SCIP_INVALIDDATA;
}
}
/* close file */
SCIPfclose(lpinput->file);
return SCIP_OKAY;
}
