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GRBgetstrattrlist
| int | GRBgetstrattrlist ( | GRBmodel | *model, |
| const char | *attrname, | ||
| int | len, | ||
| int | *ind, | ||
| char | **values ) |
Query the values of a string-valued array attribute.
Return value:
A non-zero return value indicates that a problem occurred while querying the attribute. Refer to the Error Code table for a list of possible return values. Details on the error can be obtained by calling GRBgeterrormsg.
Arguments:
model: A loaded optimization model, typically created by routine GRBnewmodel or GRBreadmodel.
attrname: The name of a string-valued array attribute. Available attributes are listed and described in the Attributes section of this document.
len: The number of attribute elements to retrieve.
ind: The indices of the desired attribute elements.
values: A pointer to the location where the requested attribute elements should be returned. Note that the result array must be as long as the requested index list.
Important notes:
Note that all interface routines that return string-valued attributes are returning pointers into internal Gurobi data structures. The user should copy the contents of the pointer to a different data structure before the next call to a Gurobi library routine. The user should also be careful to never modify the data pointed to by the returned character pointer.
Example usage:
int desired[] = {0, 2, 4, 6};
char **varnames[4];
error = GRBgetstrattrlist(model, "VarName", 4, desired, varnames);
