---
title: MTLIOError.Code
framework: metal
role: symbol
role_heading: Enumeration
path: metal/mtlioerror-swift.struct/code
---

# MTLIOError.Code

The error codes for creating an input/output file handle.

## Declaration

```swift
enum Code
```

## Topics

### Error codes

- [MTLIOError.Code.urlInvalid](metal/mtlioerror-swift.struct/code/urlinvalid.md)
- [MTLIOError.Code.internal](metal/mtlioerror-swift.struct/code/internal.md)
- [MTLIOError.Code.urlInvalid](metal/mtlioerror-swift.struct/code/urlinvalid.md)
- [MTLIOError.Code.internal](metal/mtlioerror-swift.struct/code/internal.md)

### Initializers

- [init(rawValue:)](metal/mtlioerror-swift.struct/code/init(rawvalue:).md)

## Relationships

### Conforms To

- [BitwiseCopyable](swift/bitwisecopyable.md)
- [Equatable](swift/equatable.md)
- [Hashable](swift/hashable.md)
- [RawRepresentable](swift/rawrepresentable.md)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)

## See Also

### I/O command buffers

- [MTLIOCommandBuffer](metal/mtliocommandbuffer.md)
- [MTLIOFileHandle](metal/mtliofilehandle.md)
- [MTLIOCommandBufferHandler](metal/mtliocommandbufferhandler.md)
- [MTLIOStatus](metal/mtliostatus.md)
- [MTLIOErrorDomain](metal/mtlioerrordomain.md)