BitMath
Table of contents
Constructors
Methods
Constructors
constructor
• new BitMath(): BitMath
Returns
Methods
closestBit
▸ closestBit(_integer, _bit, _rightSide): Result<u8>
Returns the closest non-zero bit of integer to the right (of left) of the bit bits that is not bit
Parameters
| Name | Type | Description |
|---|---|---|
_integer | u256 | The integer as a u256 |
_bit | u8 | The bit index |
_rightSide | bool | Whether we're searching in the right side of the tree (true) or the left side (false) |
Returns
Result<u8>
The index of the closest non-zero bit.
Defined in
assembly/libraries/BitMath.ts:14
closestBitLeft
▸ closestBitLeft(x, bit): Result<u8>
Returns the index of the closest bit on the left of x that is non null
Parameters
| Name | Type | Description |
|---|---|---|
x | u256 | The value as a u256 |
bit | i32 | The index of the bit to start searching at |
Returns
Result<u8>
The index of the closest non null bit on the left of x.
Defined in
assembly/libraries/BitMath.ts:41
closestBitRight
▸ closestBitRight(x, bit): Result<u8>
Returns the index of the closest bit on the right of x that is non null
Parameters
| Name | Type | Description |
|---|---|---|
x | u256 | The value as a u256 |
bit | i32 | The index of the bit to start searching at |
Returns
Result<u8>
The index of the closest non null bit on the right of x.
Defined in
assembly/libraries/BitMath.ts:26
leastSignificantBit
▸ leastSignificantBit(x): u8
Returns the index of the least significant bit of x
Parameters
| Name | Type | Description |
|---|---|---|
x | u256 | The value as a u256 |
Returns
u8
The index of the least significant bit of x
Defined in
assembly/libraries/BitMath.ts:96
mostSignificantBit
▸ mostSignificantBit(x): u8
Returns the index of the most significant bit of x
Parameters
| Name | Type | Description |
|---|---|---|
x | u256 | The value as a u256 |
Returns
u8
The index of the most significant bit of x
Defined in
assembly/libraries/BitMath.ts:54
significantBit
▸ significantBit(_integer, _isMostSignificant): u8
Returns the most (or least) significant bit of _integer
Parameters
| Name | Type | Description |
|---|---|---|
_integer | u256 | The integer |
_isMostSignificant | bool | Whether we want the most (true) or the least (false) significant bit |
Returns
u8
The index of the most (or least) significant bit