<!--
{
  "availability" : [
    "*: -",
    "iOS: 14.0.0 -",
    "iPadOS: 14.0.0 -",
    "macCatalyst: -",
    "macOS: 11.0.0 -",
    "tvOS: 14.0.0 -",
    "visionOS: -",
    "watchOS: 7.0.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "Accelerate",
  "identifier" : "/documentation/Accelerate/BNNS/ConvolutionPadding",
  "metadataVersion" : "0.1.0",
  "role" : "Enumeration",
  "symbol" : {
    "kind" : "Enumeration",
    "modules" : [
      "Accelerate"
    ],
    "preciseIdentifier" : "s:10Accelerate4BNNSO18ConvolutionPaddingO"
  },
  "title" : "BNNS.ConvolutionPadding"
}
-->

# BNNS.ConvolutionPadding

Constants that describe convolution padding modes.

```
enum ConvolutionPadding
```

## Topics

### Convolution Padding Modes

[`case asymmetric(left: Int, right: Int, up: Int, down: Int)`](/documentation/Accelerate/BNNS/ConvolutionPadding/asymmetric(left:right:up:down:))

A padding mode that supports individual padding values for each side.

[`case symmetric(x: Int, y: Int)`](/documentation/Accelerate/BNNS/ConvolutionPadding/symmetric(x:y:))

A padding mode that provides symmetric padding.

### Special Values

[`static var zero: BNNS.ConvolutionPadding`](/documentation/Accelerate/BNNS/ConvolutionPadding/zero)

A padding mode with zero padding on all sides.


---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)