---
title: cxxLanguageStandard
framework: swift-package-manager
role: symbol
role_heading: Instance Property
path: swift-package-manager/documentation/packagedescription/package/cxxlanguagestandard
---

# cxxLanguageStandard

The C++ language standard to use for all C++ targets in this package.

## Declaration

```swift
var cxxLanguageStandard: CXXLanguageStandard?
```

## See Also

### Declaring Supported Languages

- [SwiftLanguageMode](swift-package-manager/documentation/packagedescription/swiftlanguagemode.md)
- [CLanguageStandard](swift-package-manager/documentation/packagedescription/clanguagestandard.md)
- [CXXLanguageStandard](swift-package-manager/documentation/packagedescription/cxxlanguagestandard.md)
- [swiftLanguageModes](swift-package-manager/documentation/packagedescription/package/swiftlanguagemodes.md)
- [cLanguageStandard](swift-package-manager/documentation/packagedescription/package/clanguagestandard.md)
- [SwiftVersion](swift-package-manager/documentation/packagedescription/swiftversion.md)
- [swiftLanguageVersions](swift-package-manager/documentation/packagedescription/package/swiftlanguageversions.md)