> For the complete documentation index, see [llms.txt](https://v-community.gitbook.io/v-by-example/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://v-community.gitbook.io/v-by-example/jp/examples/section_1/primitives.md).

# プリミティブ型

Vのプリミティブ型は、Go言語よりも少なくなっています。

## 基本型

* bool型（`true`または`false`）
* string型
* integer型（`int`）
* float型（`float`）
* rune型（Unicodeコードポイント）-- `0xf09f9880`など

## 複合型

* array型（`[]`）
* map型（`{}`）
* struct型

## integer型

integer（整数）型はさらに`signed`（符号あり）と`unsigned`（符号なし）に分けられます。`signed`は正または負の値を表しますが、`unsigned`は正の値だけを表します。

### 符号あり整数

| 型名       |   サイズ  |             値の範囲 |
| -------- | :----: | ---------------: |
| `int8`   |  8ビット  |     -128 〜 27 -1 |
| `int16`  |  16ビット |   -215 〜 215 - 1 |
| `int`    |  32ビット |   -231 〜 231 - 1 |
| `int64`  |  64ビット |   -263 〜 263 - 1 |
| `int128` | 128ビット | -2127 〜 2127 - 1 |

### 符号なし整数

| 型名     |   サイズ  |         値の範囲 |
| ------ | :----: | -----------: |
| `byte` |  8ビット  |    0 〜 27 -1 |
| `u16`  |  16ビット |  0 〜 215 - 1 |
| `u32`  |  32ビット |  0 〜 231 - 1 |
| `u64`  |  64ビット |  0 〜 263 - 1 |
| `u128` | 128ビット | 0 〜 2127 - 1 |


---

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