# set_rh Set the value of the right hand side (RHS) vector (column 0) for one row. unsigned char set_rh(lprec *lp, int row, REAL value); Return Value set_rh returns TRUE (1) if the operation was successful. A return value of FALSE (0) indicates an error. Parameters lp Pointer to previously created lp model. See return value of make_lp, copy_lp, read_lp, read_LP, read_mps, read_freemps, read_MPS, read_freeMPS, read_XLI row The row for which the RHS value must be set. Must be between 0 and number of rows in the lp. value The value of the RHS. Remarks The set_rh function sets the value of the RHS vector (column 0) for the specified row. Note that row can also be 0 with this function. In that case an initial value for the objective value is set. Functions set_rh_vec, str_set_rh_vec ignore row 0 (for historical reasons) in the specified RHS vector, but it is possible to first call one of these functions and then set the value of the objective with set_rh. Example
    #include <stdio.h>
    #include <stdlib.h>
    #include "lp_lib.h"

    int main(void)
    {
      lprec *lp;

      /* Create a new LP model */
      lp = make_lp(2, 0);
      if(lp == NULL) {
        fprintf(stderr, "Unable to create new LP model\n");
        return(1);
      }

      set_rh(lp, 1, 1.0); /* sets the value 1.0 for RHS row 1 */

      delete_lp(lp);
      return(0);
    }
lp_solve API reference See Also make_lp, copy_lp, read_lp, read_LP, read_mps, read_freemps, read_MPS, read_freeMPS, read_XLI, set_rh_vec, str_set_rh_vec, get_rh, add_constraint, add_constraintex, str_add_constraint, get_row, get_rowex, get_mat