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919eea7045
This adds a protocol to the C++ standard library overlay which will improve the ergonomics of `std::map` and `std::unordered_map` when used from Swift code. As of now, `CxxDictionary` adds a subscript with an optional return type that mimics the subscript of `Swift.Dictionary`. Similar to https://github.com/apple/swift/pull/63244.
20 lines
667 B
Swift
20 lines
667 B
Swift
//===----------------------------------------------------------------------===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2014 - 2023 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See https://swift.org/LICENSE.txt for license information
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// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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public protocol CxxPair<First, Second> {
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associatedtype First
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associatedtype Second
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var first: First { get }
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var second: Second { get }
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}
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