# int64

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## Installation

    $ npm install @chengaoyuan/int64

## Usage

```ts
import { setInt64, setUint64, getInt64, getUint64 } from "@chengaoyuan/int64";
const ab = new ArrayBuffer(8);
const dv = new DataView(ab);

setInt64(dv, 0, 1234567890, false);
console.log(getInt64(dv, 0, false)); // out: 1234567890

setInt64(dv, 0, -1234567890, true);
console.log(getInt64(dv, 0, true)); // out: -1234567890

setUint64(dv, 0, 1234567890, false);
console.log(getUint64(dv, 0, false)); // out: 1234567890
```

## Testing

    $ npm test