Documentation

GRBsetintattrlist


GRBsetintattrlist

int GRBsetintattrlist ( GRBmodel *model,
    const char *attrname,
    int len,
    int *ind,
    int *values )

Set the values of an integer-valued array attribute.

Return value:

A non-zero return value indicates that a problem occurred while setting 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 an integer-valued array attribute. Available attributes are listed and described in the Attributes section of this document.

len: The number of array entries to set.

ind: The indices of the array attribute elements that will be set.

values: A pointer to the desired new values for the specified elements of the attribute. Note that the values array must be as long as the list of indices.

Example usage:

  int change[] = {0, 1, 3};
  int newbas[] = {GRB_BASIC, GRB_NONBASIC_LOWER, GRB_NONBASIC_LOWER};
  error = GRBsetintattrlist(model, "VBasis", 3, change, newbas);