###### (This is the documentation for SDL3, which is the current stable version. [SDL2](https://wiki.libsdl.org/SDL2/) was the previous version!)
# SDL_AUDIO_ISSIGNED

Determine if an [SDL_AudioFormat](SDL_AudioFormat) represents signed data.

## Header File

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

## Syntax

```c
#define SDL_AUDIO_ISSIGNED(x)        ((x) & SDL_AUDIO_MASK_SIGNED)
```

## Macro Parameters

|       |                                              |
| ----- | -------------------------------------------- |
| **x** | an [SDL_AudioFormat](SDL_AudioFormat) value. |

## Return Value

Returns non-zero if format is signed, zero otherwise.

## Remarks

For example, `SDL_AUDIO_ISSIGNED(SDL_AUDIO_U8)` returns 0.

## Thread Safety

It is safe to call this macro from any thread.

## Version

This macro is available since SDL 3.1.3.

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[CategoryAPI](CategoryAPI), [CategoryAPIMacro](CategoryAPIMacro), [CategoryAudio](CategoryAudio)