PackingUtils

External library used to pack and unpack values

pack

function pack(uint256[] _values, uint256[] _bitLengths) external pure returns (uint256 packed)

Packs values array into a single uint256

Parameters

Name	Type	Description
_values	uint256[]	values to pack
_bitLengths	uint256[]	corresponding bit lengths for each value

unpack

function unpack(uint256 _packed, uint256[] _bitLengths) external pure returns (uint256[] values)

Unpacks a single uint256 into an array of values

Parameters

Name	Type	Description
_packed	uint256	packed value
_bitLengths	uint256[]	corresponding bit lengths for each value

unpack256To64

function unpack256To64(uint256 _packed) external pure returns (uint64 a, uint64 b, uint64 c, uint64 d)

Unpacks a single uint256 into 4 uint64 values

Parameters

Name	Type	Description
_packed	uint256	packed value

Return Values

Name	Type	Description
a	uint64	returned value 1
b	uint64	returned value 2
c	uint64	returned value 3
d	uint64	returned value 4

unpackTriggerOrder

function unpackTriggerOrder(uint256 _packed) external pure returns (uint8 orderType, address trader, uint32 index)

Unpacks trigger order calldata into 3 values

Parameters

Name	Type	Description
_packed	uint256	packed value

Return Values

Name	Type	Description
orderType	uint8	order type
trader	address	trader address
index	uint32	trade index