# utils<a name="EN-US_TOPIC_0000001078403148"></a>

-   [Introduction](#section11660541593)
-   [Directory Structure](#section17271017133915)
-   [Usage](#section137421544135015)
-   [Repositories Involved](#section1249817110914)

## Introduction<a name="section11660541593"></a>

The  **utils**  repository provides ndk_libraries_config and system functions.

## Directory Structure<a name="section17271017133915"></a>

```
utils
├── native               # Utility class implementation at the Native layer
├── ndk_libraries_config # Configuration of the NDK library
└── system               # System-related predefined values and security policy configuration
```

## Usage<a name="section137421544135015"></a>

For details, see the API Reference.

## Repositories Involved<a name="section1249817110914"></a>

Utils subsystem

**utils**

utils\_native

[utils\_native\_lite](https://gitee.com/openharmony/utils_native_lite)

