# bit32（ロブロックス ライブラリ）

> A library of functions to perform bitwise operations.

- URL：https://roblox.minecraft-okinawa.com/reference/libraries/bit32/
- 公式：https://create.roblox.com/docs/reference/engine/libraries/bit32

## 関数

- `bit32.arshift(x: number, disp: number): number`：Returns a number after its bits have been arithmetically shifted to the right by a given displacement.
- `bit32.band(numbers: Tuple): number`：Returns the bitwise AND of all provided numbers.
- `bit32.bnot(x: number): number`：Returns the bitwise negation of a given number.
- `bit32.bor(numbers: Tuple): number`：Returns the bitwise OR of all provided numbers.
- `bit32.btest(numbers: Tuple): bool`：Returns a boolean describing whether the bitwise and of its operands is different from zero.
- `bit32.bxor(numbers: Tuple): number`：Returns the bitwise XOR of all provided numbers.
- `bit32.byteswap(x: number): number`：Returns the given number with the order of the bytes swapped.
- `bit32.countlz(n: number): number`：Returns the number of consecutive zero bits in the 32-bit representation of the provided number starting from the left-most (most significant) bit.
- `bit32.countrz(n: number): number`：Returns the number of consecutive zero bits in the 32-bit representation of the provided number starting from the right-most (least significant) bit.
- `bit32.extract(n: number, field: number, width: number): number`：Extract a range of bits from a number and return them as an unsigned number.
- `bit32.replace(n: number, v: number, field: number, width: number): number`：Return a copy of a number with a range of bits replaced by a given value.
- `bit32.lrotate(x: number, disp: number): number`：Returns a number after its bits have been rotated to the left by a given number of times.
- `bit32.lshift(x: number, disp: number): number`：Returns a number whose bits have been logically shifted to the left by a given displacement.
- `bit32.rrotate(x: number, disp: number): number`：Returns a number after its bits have been rotated to the right by a given number of times.
- `bit32.rshift(x: number, disp: number): number`：Returns a number whose bits have been logically shifted to the right by a given displacement.

英語の説明とメンバー一覧：Roblox Creator Documentation（CC BY 4.0）。日本語の解説はこのサイト独自のものです。

執筆：鈴木孝昌（現役プロジェクトマネージャー／プログラミング講師）／運営：沖縄マイクラ部 プログラミングスクール「クロスウェーブ」（https://minecraft-okinawa.com/）