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//===----------------------------------------------------------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2023 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
/// A C++ type that represents a vector of values.
///
/// C++ standard library type `std::vector` conforms to this protocol.
public protocol CxxVector<Element>: ExpressibleByArrayLiteral {
associatedtype Element
associatedtype RawIterator: UnsafeCxxRandomAccessIterator
where RawIterator.Pointee == Element
init()
mutating func push_back(_ element: Element)
}
extension CxxVector {
/// Creates a C++ vector containing the elements of a Swift Sequence.
///
/// This initializes the vector by copying every element of the sequence.
///
/// - Complexity: O(*n*), where *n* is the number of elements in the Swift
/// sequence
@inlinable
public init<S: Sequence>(_ sequence: __shared S) where S.Element == Element {
self.init()
for item in sequence {
self.push_back(item)
}
}
}
extension CxxVector {
@inlinable
public init(arrayLiteral elements: Element...) {
self.init(elements)
}
}
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