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use std

use "bio.use"

pkg bio =
	/* unsigned big endian */
	generic putbe8	: (f : file#, v : @a::(numeric,integral) -> std.size)
	generic putbe16	: (f : file#, v : @a::(numeric,integral) -> std.size)
	generic putbe32	: (f : file#, v : @a::(numeric,integral) -> std.size)
	generic putbe64	: (f : file#, v : @a::(numeric,integral) -> std.size)

	/* unsigned little endian */
	generic putle8	: (f : file#, v : @a::(numeric,integral) -> std.size)
	generic putle16	: (f : file#, v : @a::(numeric,integral) -> std.size)
	generic putle32	: (f : file#, v : @a::(numeric,integral) -> std.size)
	generic putle64	: (f : file#, v : @a::(numeric,integral) -> std.size)
;;

generic putbe8  = {f, v; -> putbe(f, v castto(uint64), 1)}
generic putbe16 = {f, v; -> putbe(f, v castto(uint64), 2)}
generic putbe32 = {f, v; -> putbe(f, v castto(uint64), 4)}
generic putbe64 = {f, v; -> putbe(f, v castto(uint64), 8)}

generic putle8  = {f, v; -> putle(f, v castto(uint64), 1)}
generic putle16 = {f, v; -> putle(f, v castto(uint64), 2)}
generic putle32 = {f, v; -> putle(f, v castto(uint64), 4)}
generic putle64 = {f, v; -> putle(f, v castto(uint64), 8)}

const putle = {f, v, n
	var buf : byte[8]

	if !ensurewrite(f, n)
		-> 0
	;;
	buf[0] = (v >> 0) & 0xff castto(byte)
	buf[1] = (v >> 8) & 0xff castto(byte)
	buf[2] = (v >> 16) & 0xff castto(byte)
	buf[3] = (v >> 24) & 0xff castto(byte)
	buf[4] = (v >> 32) & 0xff castto(byte)
	buf[5] = (v >> 40) & 0xff castto(byte)
	buf[6] = (v >> 48) & 0xff castto(byte)
	buf[7] = (v >> 56) & 0xff castto(byte)
	-> write(f, buf[:n])
}

const putbe = {f, v, n
	var buf : byte[8]

	if !ensurewrite(f, n)
		-> 0
	;;
	buf[0] = (v >> 56) & 0xff castto(byte)
	buf[1] = (v >> 48) & 0xff castto(byte)
	buf[2] = (v >> 40) & 0xff castto(byte)
	buf[3] = (v >> 32) & 0xff castto(byte)
	buf[4] = (v >> 24) & 0xff castto(byte)
	buf[5] = (v >> 16) & 0xff castto(byte)
	buf[6] = (v >> 8) & 0xff castto(byte)
	buf[7] = (v >> 0) & 0xff castto(byte)
	-> write(f, buf[8-n:])
}