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September 13, 2020 14:57
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[swift] Unsafe Pointer conversion
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// | |
// Swift UnsafePointer converter | |
// Kaz Yoshikawa | |
// | |
// These code demonstrates how to convert swift pointers to the other forms of pointers. | |
// | |
// Source: | |
// Swift の Array やら ArraySlice やらポインタの変換まとめ | |
// https://qiita.com/Satachito/items/4c39c9b06304e4d86660 | |
// | |
// | |
import Foundation | |
// [Template] | |
// let _: UnsafeRawPointer | |
// let _: UnsafeMutableRawPointer | |
// let _: UnsafePointer<Int> | |
// let _: UnsafeMutablePointer<Int> | |
// let _: UnsafeRawBufferPointer | |
// let _: UnsafeMutableRawBufferPointer | |
// let _: UnsafeBufferPointer<Int> | |
// let _: UnsafeMutableBufferPointer<Int> | |
// let _: Array<Int> | |
// let _: ArraySlice<Int> | |
// let _: OpaquePointer | |
func convert(a: [Int]) { | |
let _: UnsafeRawPointer = UnsafeRawPointer(a) | |
let _: UnsafeMutableRawPointer = UnsafeMutableRawPointer(mutating: a) | |
let _: UnsafePointer<Int> = UnsafePointer(a) | |
let _: UnsafeMutablePointer<Int> = UnsafeMutablePointer(mutating: a) | |
let _: UnsafeRawBufferPointer = a.withUnsafeBytes { $0 } | |
// let _: UnsafeMutableRawBufferPointer = a.withUnsafeMutableBytes { $0 } | |
let _: UnsafeBufferPointer<Int> = a.withUnsafeBufferPointer { $0 } | |
// let _: UnsafeMutableBufferPointer< Int > = a.withUnsafeMutableBufferPointer { $0 } | |
let _: ArraySlice<Int> = ArraySlice(a) | |
let _: OpaquePointer = OpaquePointer(a) | |
} | |
func convert(w: ArraySlice<Int>) { | |
let _: UnsafeRawPointer = w.withUnsafeBytes { $0.baseAddress! } | |
let _: UnsafeMutableRawPointer = UnsafeMutableRawPointer(mutating: w.withUnsafeBytes { $0.baseAddress! }) | |
let _: UnsafePointer<Int> = w.withUnsafeBufferPointer { $0.baseAddress! } | |
let _: UnsafeMutablePointer<Int> = UnsafeMutablePointer(mutating: w.withUnsafeBufferPointer { $0.baseAddress! }) | |
let _: UnsafeRawBufferPointer = w.withUnsafeBytes { $0 } | |
let _: UnsafeMutableRawBufferPointer = UnsafeMutableRawBufferPointer(mutating: w.withUnsafeBytes { $0 }) | |
let _: UnsafeBufferPointer<Int> = w.withUnsafeBufferPointer { $0 } | |
let _: UnsafeMutableBufferPointer<Int> = UnsafeMutableBufferPointer(mutating: w.withUnsafeBufferPointer { $0 }) | |
let _: Array<Int> = Array(w) | |
let _: OpaquePointer = OpaquePointer(w.withUnsafeBufferPointer { $0.baseAddress! }) | |
} | |
func convert(w: UnsafeRawPointer) { | |
// let _: UnsafeRawPointer | |
let _: UnsafeMutableRawPointer = UnsafeMutableRawPointer(mutating: w) | |
let _: UnsafePointer<Int> = w.assumingMemoryBound(to: Int.self) | |
let _: UnsafeMutablePointer<Int> = UnsafeMutablePointer(mutating: w.assumingMemoryBound(to: Int.self)) | |
// let _: UnsafeRawBufferPointer | |
// let _: UnsafeMutableRawBufferPointer | |
// let _: UnsafeBufferPointer<Int> | |
// let _: UnsafeMutableBufferPointer<Int> | |
// let _: Array<Int> | |
// let _: ArraySlice<Int> | |
let _: OpaquePointer = OpaquePointer(w) | |
} | |
func convert(w: UnsafeMutableRawPointer) { | |
let _: UnsafeRawPointer = UnsafeRawPointer(w) | |
// let _: UnsafeMutableRawPointer | |
let _: UnsafePointer<Int> = UnsafePointer(w.assumingMemoryBound(to: Int.self)) | |
let _: UnsafeMutablePointer<Int> = w.assumingMemoryBound(to: Int.self) | |
// let _: UnsafeRawBufferPointer | |
// let _: UnsafeMutableBufferPointer | |
// let _: UnsafeBufferPointer<Int> | |
// let _: UnsafeMutableBufferPointer | |
// let _: Array<Int> | |
let _: OpaquePointer = OpaquePointer(w) | |
} | |
func convert(w: UnsafePointer<Int>) { | |
let _: UnsafeRawPointer = UnsafeRawPointer(w) | |
let _: UnsafeMutableRawPointer = UnsafeMutableRawPointer(mutating: w) | |
// let _: UnsafePointer<Int> | |
let _: UnsafeMutablePointer<Int> = UnsafeMutablePointer(mutating: w) | |
// let _: UnsafeRawBufferPointer | |
// let _: nsafeMutableRawBufferPointer | |
// let _: UnsafeBufferPointer<Int> | |
// let _: UnsafeMutableBufferPointer<Int> | |
// let _: Array<Int> | |
// let _: ArraySlice<Int> | |
let _: OpaquePointer = OpaquePointer(w) | |
} | |
func convert(w: UnsafeMutablePointer<Int>) { | |
let _: UnsafeRawPointer = UnsafeRawPointer(w) | |
let _: UnsafeMutableRawPointer = UnsafeMutableRawPointer(w) | |
let _: UnsafePointer<Int> = UnsafePointer(w) | |
// let _: UnsafeMutablePointer<Int> | |
// let _: UnsafeRawBufferPointer | |
// let _: UnsafeMutableRawBufferPointer | |
// let _: UnsafeBufferPointer<Int> | |
// let _: UnsafeMutableBufferPointer<Int> | |
// let _: Array<Int> | |
// let _: ArraySlice<Int> | |
let _: OpaquePointer = OpaquePointer(w) | |
} | |
func convert(w: UnsafeRawBufferPointer) { | |
let _: UnsafeRawPointer = w.baseAddress! | |
let _: UnsafeMutableRawPointer = UnsafeMutableRawPointer(mutating: w.baseAddress!) | |
let _: UnsafePointer<Int> = w.baseAddress!.assumingMemoryBound(to: Int.self) | |
let _: UnsafeMutablePointer<Int> = UnsafeMutablePointer(mutating: w.baseAddress!.assumingMemoryBound(to: Int.self)) | |
// let _: UnsafeRawBufferPointer | |
// let _: UnsafeMutableRawBufferPointer | |
// let _: UnsafeBufferPointer<Int> | |
let _: UnsafeMutableRawBufferPointer = UnsafeMutableRawBufferPointer(mutating: w) | |
// let _: Array<Int> | |
// let _: ArraySlice<Int> | |
let _: OpaquePointer = OpaquePointer(w.baseAddress!) | |
} | |
func convert(w: UnsafeMutableRawBufferPointer) { | |
let _: UnsafeRawPointer = UnsafeRawPointer(w.baseAddress!) | |
let _: UnsafeMutableRawPointer = w.baseAddress! | |
let _: UnsafePointer<Int> = UnsafePointer(w.baseAddress!.assumingMemoryBound(to: Int.self)) | |
let _: UnsafeMutablePointer<Int> = w.baseAddress!.assumingMemoryBound(to: Int.self) | |
let _: UnsafeRawBufferPointer = UnsafeRawBufferPointer(w) | |
// let _: UnsafeMutableRawBufferPointer | |
// let _: UnsafeBufferPointer<Int> | |
// let _: UnsafeMutableBufferPointer<Int> | |
// let _: Array<Int> | |
// let _: ArraySlice<Int> | |
let _: OpaquePointer = OpaquePointer(w.baseAddress!) | |
} | |
func convert(w: UnsafeBufferPointer<Int>) { | |
let _: UnsafeRawPointer = UnsafeRawPointer(w.baseAddress!) | |
let _: UnsafeMutableRawPointer = UnsafeMutableRawPointer(mutating: w.baseAddress!) | |
let _: UnsafePointer<Int> = UnsafePointer(w.baseAddress!) | |
let _: UnsafeMutablePointer<Int> = UnsafeMutablePointer(mutating: w.baseAddress!) | |
let _: UnsafeRawBufferPointer = UnsafeRawBufferPointer(w) | |
let _: UnsafeMutableRawBufferPointer = UnsafeMutableRawBufferPointer(mutating: UnsafeRawBufferPointer(w)) | |
// let _: UnsafeBufferPointer<Int> | |
let _: UnsafeMutableBufferPointer<Int> = UnsafeMutableBufferPointer(mutating: w) | |
let _: Array<Int> = Array(w) | |
let _: ArraySlice<Int> = ArraySlice(w) | |
let _: OpaquePointer = OpaquePointer(w.baseAddress!) | |
} | |
func convert(w: OpaquePointer) { | |
let _: UnsafeRawPointer = UnsafeRawPointer(w) | |
let _: UnsafeMutableRawPointer = UnsafeMutableRawPointer(w) | |
let _: UnsafePointer<Int> = UnsafePointer(w) | |
let _: UnsafeMutablePointer<Int> = UnsafeMutablePointer(w) | |
// let _: UnsafeRawBufferPointer | |
// let _: UnsafeMutableRawBufferPointer | |
// let _: UnsafeBufferPointer<Int> | |
// let _: UnsafeMutableBufferPointer<Int> | |
// let _: Array<Int> | |
// let _: ArraySlice<Int> | |
// let _: OpaquePointer | |
} |
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