(present from 4.13)
lpx_exact
(present from 4.10)
lpx_cpx_basis
(present from 4.9)
lpx_intopt
lpx_check_int
(present from 4.7 to 4.14)
lpx_order_matrix
(present from 4.7)
lpx_create_index
lpx_find_row
lpx_find_col
lpx_delete_index
lpx_read_freemps
lpx_write_freemps
(present from 4.6)
lpx_read_prob
lpx_write_prob