FO-WARN(1) General Commands Manual FO-WARN(1) NNAAMMEE FFoo--wwaarrnn - warnings related to function blocks SSYYNNOOPPSSIISS _d_o_u_b_l_e ssiinn(())(_d_o_u_b_l_e _x); _d_o_u_b_l_e aattaann22(_d_o_u_b_l_e _y_, _d_o_u_b_l_e _x); OpenBSD July 4, 2017 OpenBSD