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[stdlib] Add ** and **= for exponentiation #36053

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[stdlib] Add ** and **= for exponentiation #36053

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70613cd
[stdlib] Add exponentiation precedence group and operator
xwu Feb 18, 2021
19585c4
[stdlib] Re-enable floating-point tests
benrimmington Feb 19, 2021
53fa483
[stdlib] Remove `**` and `**=` placeholders
benrimmington Feb 19, 2021
95602b9
[stdlib] Add `__builtin_pow` to LibcShims.h
benrimmington Feb 19, 2021
17b88fd
[stdlib] Add `**` and `**=` implementations
benrimmington Feb 19, 2021
4bea48d
[stdlib] Add `**` and `**=` tests
benrimmington Feb 19, 2021
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[stdlib] Remove ** and **= placeholders
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@benrimmington
benrimmington committed Feb 19, 2021
commit 53fa48385bf220a2ead1282b8d3360a854fb639c
47 changes: 1 addition & 46 deletions stdlib/public/core/Policy.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,7 @@
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2018 Apple Inc. and the Swift project authors
// Copyright (c) 2014 - 2021 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
Expand Down Expand Up @@ -491,48 +491,3 @@ infix operator |=: AssignmentPrecedence, BinaryInteger
// example of how this operator is used, and how its use can be hidden
// from users.
infix operator ~>

//===----------------------------------------------------------------------===//
// Placeholder operator functions for diagnostic purposes
//===----------------------------------------------------------------------===//

extension Float {
@available(*, unavailable, message: "use 'Foundation.pow' instead")
@_alwaysEmitIntoClient
public static func ** (lhs: Self, rhs: Self) -> Self {
fatalError("Not implemented")
}
@available(*, unavailable, message: "use 'Foundation.pow' instead")
@_alwaysEmitIntoClient
public static func **= (lhs: inout Self, rhs: Self) {
fatalError("Not implemented")
}
}

extension Double {
@available(*, unavailable, message: "use 'Foundation.pow' instead")
@_alwaysEmitIntoClient
public static func ** (lhs: Self, rhs: Self) -> Self {
fatalError("Not implemented")
}
@available(*, unavailable, message: "use 'Foundation.pow' instead")
@_alwaysEmitIntoClient
public static func **= (lhs: inout Self, rhs: Self) {
fatalError("Not implemented")
}
}

#if !(os(Windows) || os(Android)) && (arch(i386) || arch(x86_64))
extension Float80 {
@available(*, unavailable, message: "use 'Foundation.pow' instead")
@_alwaysEmitIntoClient
public static func ** (lhs: Self, rhs: Self) -> Self {
fatalError("Not implemented")
}
@available(*, unavailable, message: "use 'Foundation.pow' instead")
@_alwaysEmitIntoClient
public static func **= (lhs: inout Self, rhs: Self) {
fatalError("Not implemented")
}
}
#endif