Initializing help system before first use

XPRS_msp_getsol

Purpose
Returns the solution values for a solution stored in the MIP solution pool.
Synopsis
int XPRS_CC XPRS_msp_getsol(XPRSmipsolpool msp, const int iSolutionId, int * const iSolutionIdStatus, double x[], const int iColFirst, const int iColLast, int * const nValuesReturned)
Arguments
Msp 
The current MIP solution pool.
iSolutionId 
The id of the required solution.
iSolutionIdStatus 
Pointer to an int where the status of the iSolutionId will be returned. The returned value is one of:
-2 
Solution id does not exist;
-1 
Solution with the given id is already deleted;
0 
Solution id was for an active solution.
x 
Double array where the values of the solution will be returned. May be NULL if not required.
iColFirst 
Index of the column whose solution value is to be returned in the first element of array x. If iColLast > iColFirst then any subsequent columns are to have their values written to the subsequent elements of x.
iColLast 
If x is non-NULL then at most iColLast - iColFirst + 1 solution values will be written to x. There will be fewer solution values written if iColLast is greater than or equal to the number of columns in the solution.
nValuesReturned 
Pointer to an integer where the number of solution values that were available to be written is returned. This number will always be less than or equal to iColLast - iColFirst + 1. A value is returned for this parameter regardless of whether x is passed as NULL. May be NULL if not required.
Further information
1. It is an error condition if iColLast < iColFirst or iColFirst < 0 or if iColFirst is greater than or equal to the number of columns in the solution.
2. The user will obtain the solution id iSolutionId from interaction with the MIP solution pool via functions such as XPRS_msp_findsolbyname, XPRS_msp_getdblattribprobextreme, XPRS_msp_getintattribprobextreme and XPRS_msp_getsollist.
3. By passing x as NULL and setting iColFirst to 0 and iColLast to a large positive integer it is possible to use XPRS_msp_getsol to obtain in the nValuesReturned parameter the number of columns in the solution.
Related topics
XPRS_msp_findsolbyname, XPRS_msp_getdblattribprobextreme, XPRS_msp_getintattribprobextreme, XPRS_msp_getsollist.

Parent Topic MSP Functions

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