IB20Asset.fromUIAmount

ERC-8056 UI-to-raw conversion reference.

The source file that documented this function (docs/B20/Asset.md) has been removed as part of a documentation restructure. The content below reflects the last verified state of this function’s behavior.

Signature

IB20Asset.sol

function fromUIAmount(uint256 uiAmount) external view returns (uint256);

Field	Value
Selector	0x65cd9b3c
Canonical signature	fromUIAmount(uint256)

Description

Converts uiAmount to its raw token representation at the effective multiplier. The result is integer-floored, so a round-trip through toUIAmount → fromUIAmount can lose up to one ULP of the scaled amount.

Parameters

Name	Type	Description
uiAmount	uint256	The UI (scaled) amount to convert to raw.

Returns

Type	Description
uint256	The raw token amount, rounded down.

Behavior

• Applies the currently effective multiplier (see uiMultiplier()).
• Division rounds down; the raw result may be one ULP less than the exact quotient.
• Part of the ERC-8056 optional Conversion extension (0x57854fc3).