mirror of
https://github.com/apple/swift.git
synced 2025-12-14 20:36:38 +01:00
4beb673b8e
* Bump version to Swift 5.1 * Update tests with compiler version bump * Undo flatMap and math obsolescences
391 lines
9.9 KiB
Swift
391 lines
9.9 KiB
Swift
//===--- tgmath.swift.gyb -------------------------------------*- 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 - 2019 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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import SwiftShims
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// Generic functions implementable directly on FloatingPoint.
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@_transparent
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@available(swift, deprecated: 4.2/*, obsoleted: 5.1*/, renamed: "abs")
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public func fabs<T: FloatingPoint>(_ x: T) -> T {
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return x.magnitude
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}
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@_transparent
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public func sqrt<T: FloatingPoint>(_ x: T) -> T {
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return x.squareRoot()
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}
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@_transparent
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public func fma<T: FloatingPoint>(_ x: T, _ y: T, _ z: T) -> T {
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return z.addingProduct(x, y)
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}
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@_transparent
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public func remainder<T: FloatingPoint>(_ x: T, _ y: T) -> T {
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return x.remainder(dividingBy: y)
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}
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@_transparent
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public func fmod<T: FloatingPoint>(_ x: T, _ y: T) -> T {
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return x.truncatingRemainder(dividingBy: y)
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}
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@_transparent
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public func ceil<T: FloatingPoint>(_ x: T) -> T {
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return x.rounded(.up)
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}
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@_transparent
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public func floor<T: FloatingPoint>(_ x: T) -> T {
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return x.rounded(.down)
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}
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@_transparent
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public func round<T: FloatingPoint>(_ x: T) -> T {
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return x.rounded()
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}
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@_transparent
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public func trunc<T: FloatingPoint>(_ x: T) -> T {
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return x.rounded(.towardZero)
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}
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@_transparent
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public func scalbn<T: FloatingPoint>(_ x: T, _ n : Int) -> T {
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return T(sign: .plus, exponent: T.Exponent(n), significand: x)
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}
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@_transparent
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public func modf<T: FloatingPoint>(_ x: T) -> (T, T) {
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// inf/NaN: return canonicalized x, fractional part zero.
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guard x.isFinite else { return (x+0, 0) }
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let integral = trunc(x)
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let fractional = x - integral
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return (integral, fractional)
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}
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@_transparent
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public func frexp<T: BinaryFloatingPoint>(_ x: T) -> (T, Int) {
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guard x.isFinite else { return (x+0, 0) }
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guard x != 0 else { return (x, 0) }
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// The C stdlib `frexp` uses a different notion of significand / exponent
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// than IEEE 754, so we need to adjust them by a factor of two.
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return (x.significand / 2, Int(x.exponent + 1))
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}
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%for T in ['Float','Double']:
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@available(swift, deprecated: 4.2, renamed: "scalbn")
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@_transparent
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public func ldexp(_ x: ${T}, _ n : Int) -> ${T} {
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return ${T}(sign: .plus, exponent: n, significand: x)
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}
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%end
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// Floating-point properties that are exposed as functions in the C math
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// library. Mark those function names unavailable and direct users to the
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// properties instead.
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@available(*, unavailable, message: "use the floatingPointClass property.")
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public func fpclassify<T: FloatingPoint>(_ value: T) -> Int { fatalError() }
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@available(*, unavailable, message: "use the isNormal property.")
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public func isnormal<T: FloatingPoint>(_ value: T) -> Bool { fatalError() }
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@available(*, unavailable, message: "use the isFinite property.")
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public func isfinite<T: FloatingPoint>(_ value: T) -> Bool { fatalError() }
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@available(*, unavailable, message: "use the isInfinite property.")
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public func isinf<T: FloatingPoint>(_ value: T) -> Bool { fatalError() }
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@available(*, unavailable, message: "use the isNaN property.")
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public func isnan<T: FloatingPoint>(_ value: T) -> Bool { fatalError() }
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@available(*, unavailable, message: "use the sign property.")
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public func signbit<T: FloatingPoint>(_ value: T) -> Int { fatalError() }
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@available(swift, deprecated: 4.2/*, obsoleted: 5.1*/, message: "use the exponent property.")
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public func ilogb<T: BinaryFloatingPoint>(_ x: T) -> Int {
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return Int(x.exponent)
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}
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%{
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# Don't need 64-bit (Double/CDouble) overlays. The ordinary C imports work fine.
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overlayFloatBits = [32, 80]
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allFloatBits = [32, 64, 80]
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def floatName(bits):
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if bits == 32:
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return 'Float'
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if bits == 64:
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return 'Double'
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if bits == 80:
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return 'Float80'
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def cFloatName(bits):
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if bits == 32:
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return 'CFloat'
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if bits == 64:
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return 'CDouble'
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if bits == 80:
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return 'CLongDouble'
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def cFuncSuffix(bits):
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if bits == 32:
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return 'f'
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if bits == 64:
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return ''
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if bits == 80:
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return 'l'
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# Each of the following lists is ordered to match math.h
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# (T) -> T
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# These functions do not have a corresponding LLVM intrinsic
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UnaryFunctions = [
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'acos', 'asin', 'atan', 'tan',
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'acosh', 'asinh', 'atanh', 'cosh', 'sinh', 'tanh',
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'expm1',
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'log1p',
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'erf', 'erfc',
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]
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# These functions have a corresponding LLVM intrinsic
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UnaryIntrinsicFunctions = [
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'cos', 'sin', 'exp', 'exp2', 'log', 'log10', 'log2', 'nearbyint', 'rint'
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]
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def AllFloatTypes():
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for bits in allFloatBits:
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yield floatName(bits), cFloatName(bits), cFuncSuffix(bits)
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def OverlayFloatTypes():
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for bits in overlayFloatBits:
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yield floatName(bits), cFloatName(bits), cFuncSuffix(bits)
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def TypedUnaryFunctions():
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for ufunc in UnaryFunctions:
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for bits in overlayFloatBits:
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yield floatName(bits), cFloatName(bits), cFuncSuffix(bits), ufunc
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def TypedUnaryIntrinsicFunctions():
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for ufunc in UnaryIntrinsicFunctions:
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for bits in allFloatBits:
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yield floatName(bits), ufunc
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def TypedBinaryFunctions():
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for bfunc in BinaryFunctions:
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for bits in overlayFloatBits:
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yield floatName(bits), cFloatName(bits), cFuncSuffix(bits), bfunc
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}%
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// Unary functions
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// Note these do not have a corresponding LLVM intrinsic
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% for T, CT, f, ufunc in TypedUnaryFunctions():
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% if T == 'Float80':
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#if (arch(i386) || arch(x86_64)) && !os(Windows)
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% end
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@_transparent
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public func ${ufunc}(_ x: ${T}) -> ${T} {
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return ${T}.${ufunc}(x)
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}
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% if T == 'Float80':
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#endif
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% end
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% end
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@_transparent
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public func cbrt(_ x: Float) -> Float {
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return Float.root(x, 3)
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}
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@available(swift, deprecated: 5.1, message: "Use `x.exponent` or `floor(log2(x))`.")
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@_transparent
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public func logb(_ x: Float) -> Float {
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return Float.log2(x).rounded(.down)
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}
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@_transparent
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public func tgamma(_ x: Float) -> Float {
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return Float.gamma(x)
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}
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#if (arch(i386) || arch(x86_64)) && !os(Windows)
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@_transparent
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public func cbrt(_ x: Float80) -> Float80 {
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return Float80.root(x, 3)
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}
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@available(swift, deprecated: 5.1, message: "Use `x.exponent` or `floor(log2(x))`.")
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@_transparent
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public func logb(_ x: Float80) -> Float80 {
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return Float80.log2(x).rounded(.down)
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}
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@_transparent
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public func tgamma(_ x: Float80) -> Float80 {
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return Float80.gamma(x)
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}
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#endif
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// Unary intrinsic functions
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// Note these have a corresponding LLVM intrinsic
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% for T, ufunc in TypedUnaryIntrinsicFunctions():
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% if T == 'Float80':
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#if (arch(i386) || arch(x86_64)) && !os(Windows)
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% end
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% if ufunc[-3:] != 'int':
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@_transparent
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public func ${ufunc}(_ x: ${T}) -> ${T} {
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return ${T}.${ufunc}(x)
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}
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% else:
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@available(swift, deprecated: 5.1, message: "Swift does not model dynamic rounding modes, use x.rounded(.toNearestOrEven) instead.")
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@_transparent
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public func ${ufunc}(_ x: ${T}) -> ${T} {
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return x.rounded(.toNearestOrEven)
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}
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% end
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% if T == 'Float80':
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#endif
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% end
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% end
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// Binary functions
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% for T, CT, f in OverlayFloatTypes():
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% if T == 'Float80':
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#if (arch(i386) || arch(x86_64)) && !os(Windows)
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% end
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@_transparent
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public func atan2(_ y: ${T}, _ x: ${T}) -> ${T} {
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return ${T}.atan2(y: y, x: x)
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}
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@_transparent
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public func hypot(_ x: ${T}, _ y: ${T}) -> ${T} {
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return ${T}.hypot(x, y)
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}
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@_transparent
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public func pow(_ x: ${T}, _ y: ${T}) -> ${T} {
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return ${T}.pow(x, y)
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}
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@_transparent
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public func copysign(_ x: ${T}, _ y: ${T}) -> ${T} {
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return ${T}(signOf: y, magnitudeOf: x)
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}
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@_transparent
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public func fdim(_ x: ${T}, _ y: ${T}) -> ${T} {
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return ${T}(fdim${f}(${CT}(x), ${CT}(y)))
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}
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@available(swift, deprecated: 5.1, message: "Use the .nextUp and .nextDown properties.")
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@_transparent
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public func nextafter(_ x: ${T}, _ y: ${T}) -> ${T} {
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return y > x ? x.nextUp : (y < x ? x.nextDown : y)
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}
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@available(swift, deprecated: 5.1, message: "Use ${T}.minimum( ) or Swift.min( )")
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@_transparent
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public func fmin(_ x: ${T}, _ y: ${T}) -> ${T} {
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return .minimum(x, y)
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}
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@available(swift, deprecated: 5.1, message: "Use ${T}.maximum( ) or Swift.max( )")
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@_transparent
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public func fmax(_ x: ${T}, _ y: ${T}) -> ${T} {
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return .maximum(x, y)
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}
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% if T == 'Float80':
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#endif
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% end
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% end
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% # This is AllFloatTypes not OverlayFloatTypes because of the tuple return.
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% for T, CT, f in AllFloatTypes():
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% if T == 'Float80':
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#if (arch(i386) || arch(x86_64)) && !os(Windows)
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% else:
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// lgamma not available on Windows, apparently?
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#if !os(Windows)
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% end
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@_transparent
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public func lgamma(_ x: ${T}) -> (${T}, Int) {
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return (${T}.logGamma(x), ${T}.signGamma(x) == .plus ? 1 : -1)
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}
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#endif
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% end
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% # This is AllFloatTypes not OverlayFloatTypes because of the tuple return.
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% for T, CT, f in AllFloatTypes():
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% if T == 'Float80':
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#if (arch(i386) || arch(x86_64)) && !os(Windows)
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% end
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@_transparent
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public func remquo(_ x: ${T}, _ y: ${T}) -> (${T}, Int) {
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var quo = Int32(0)
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let rem = remquo${f}(${CT}(x), ${CT}(y), &quo)
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return (${T}(rem), Int(quo))
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}
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% if T == 'Float80':
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#endif
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% end
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% end
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% for T, CT, f in OverlayFloatTypes():
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% if T == 'Float80':
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#if (arch(i386) || arch(x86_64)) && !os(Windows)
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% end
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@available(swift, deprecated: 4.2/*, obsoleted: 5.1*/, message:
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"use ${T}(nan: ${T}.RawSignificand).")
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@_transparent
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public func nan(_ tag: String) -> ${T} {
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return ${T}(nan${f}(tag))
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}
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% if T == 'Float80':
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#endif
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% end
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% end
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% # These C functions only support double. The overlay fixes the Int parameter.
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@_transparent
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public func jn(_ n: Int, _ x: Double) -> Double {
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#if os(Windows)
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return _jn(Int32(n), x)
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#else
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return jn(Int32(n), x)
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#endif
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}
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@_transparent
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public func yn(_ n: Int, _ x: Double) -> Double {
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#if os(Windows)
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return _yn(Int32(n), x)
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#else
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return yn(Int32(n), x)
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#endif
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}
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% end
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// ${'Local Variables'}:
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// eval: (read-only-mode 1)
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// End:
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