buf_next          254 src/haiku.c          last_idx = buf_next (last_idx);
buf_next          266 src/haiku.c    	first_idx = buf_next (first_idx);
buf_next         2100 src/w32.c            last_idx = buf_next (last_idx);
buf_next         2112 src/w32.c      	first_idx = buf_next (first_idx);