> For the complete documentation index, see [llms.txt](https://mwx.twelite.info/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://mwx.twelite.info/latest_en/api-reference/defs.md).

# Definition.

For definitions commonly loaded in the library, cite the definition content.

### mwx\_common.h

```cpp
#include <cstdint> // for type name
typedef char char_t;
typedef uint8_t byte;
typedef uint8_t boolean;

#ifndef NULL
#define NULL nullptr
#endif
```