include module type of Core_kernel.Std.Bigbuffer with type t = Core_kernel.Std.Bigbuffer.t
val add_channel : t -> in_channel -> int -> unit
add_channel b ic n reads exactly n character from the input channel ic and stores them at the end of buffer b. Raise End_of_file if the channel contains fewer than n characters.
val output_buffer : out_channel -> t -> unit
output_buffer oc b writes the current contents of buffer b on the output channel oc.