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SafeCast
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Contains methods for safely casting between types
Functions
toUint160
Cast a uint256 to a uint160, revert on overflow
function toUint160(uint256 x) internal pure returns (uint160 y);
Parameters
| Name | Type | Description |
|---|---|---|
x | uint256 | The uint256 to be downcasted |
Returns
| Name | Type | Description |
|---|---|---|
y | uint160 | The downcasted integer, now type uint160 |
toUint128
Cast a uint256 to a uint128, revert on overflow
function toUint128(uint256 x) internal pure returns (uint128 y);
Parameters
| Name | Type | Description |
|---|---|---|
x | uint256 | The uint256 to be downcasted |
Returns
| Name | Type | Description |
|---|---|---|
y | uint128 | The downcasted integer, now type uint128 |
toUint128
Cast a int128 to a uint128, revert on overflow or underflow
function toUint128(int128 x) internal pure returns (uint128 y);
Parameters
| Name | Type | Description |
|---|---|---|
x | int128 | The int128 to be casted |
Returns
| Name | Type | Description |
|---|---|---|
y | uint128 | The casted integer, now type uint128 |
toInt128
Cast a int256 to a int128, revert on overflow or underflow
function toInt128(int256 x) internal pure returns (int128 y);
Parameters
| Name | Type | Description |
|---|---|---|
x | int256 | The int256 to be downcasted |
Returns
| Name | Type | Description |
|---|---|---|
y | int128 | The downcasted integer, now type int128 |
toInt256
Cast a uint256 to a int256, revert on overflow
function toInt256(uint256 x) internal pure returns (int256 y);
Parameters
| Name | Type | Description |
|---|---|---|
x | uint256 | The uint256 to be casted |
Returns
| Name | Type | Description |
|---|---|---|
y | int256 | The casted integer, now type int256 |
toInt128
Cast a uint256 to a int128, revert on overflow
function toInt128(uint256 x) internal pure returns (int128);
Parameters
| Name | Type | Description |
|---|---|---|
x | uint256 | The uint256 to be downcasted |
Returns
| Name | Type | Description |
|---|---|---|
<none> | int128 | The downcasted integer, now type int128 |
Errors
SafeCastOverflow
error SafeCastOverflow();