package core

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package core
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Blit copies between iobufs and advances neither src nor dst.

type 'rw t_no_seek = ('rw, no_seek) t
include Core_kernel.Blit.S_permissions with type 'rw t := 'rw t_no_seek
val sub : ([> Core_kernel.Perms.Read.t ], no_seek) t -> pos:int -> len:int -> (_, _) t

Override types of sub and subo to allow return type to have seek as needed.

val subo : ?pos:int -> ?len:int -> ([> Core_kernel.Perms.Read.t ], no_seek) t -> (_, _) t
val blit_maximal : src:[> Core_kernel.Perms.Read.t ] t_no_seek -> ?src_pos:int -> dst:[> Core_kernel.Perms.Write.t ] t_no_seek -> ?dst_pos:int -> unit -> int

Copies as much as possible (returning the number of bytes copied) without running out of either buffer's window.