# Uint64

An unsigned 64-bit integer type.

## Header File

Defined in [<SDL3/SDL_stdinc.h>](https://github.com/libsdl-org/SDL/blob/main/include/SDL3/SDL_stdinc.h)

## Syntax

```c
typedef uint64_t Uint64;
#define SDL_MAX_UINT64  SDL_UINT64_C(0xFFFFFFFFFFFFFFFF)   /* 18446744073709551615 */
#define SDL_MIN_UINT64  SDL_UINT64_C(0x0000000000000000)   /* 0 */
```

## Version

This macro is available since SDL 3.2.0.

## See Also

- [SDL_UINT64_C](SDL_UINT64_C)

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[CategoryAPI](CategoryAPI), [CategoryAPIDatatype](CategoryAPIDatatype), [CategoryStdinc](CategoryStdinc)