Symbol: tty_clamp_line
usr.bin/tmux/tty.c
1218
if (tty_clamp_line(tty, ctx, px, py, nx, &i, &x, &rx, &ry))
usr.bin/tmux/tty.c
1389
if (tty_clamp_line(tty, ctx, 0, py, nx, &i, &x, &rx, &ry)) {