40 lines
1.4 KiB
Swift
40 lines
1.4 KiB
Swift
// Copyright © 2019 IBM. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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import Foundation
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#if !swift(>=5.0)
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// Extension to allow Swift 5 `withUnsafeBytes` API for earlier versions
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internal extension Data {
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func withUnsafeBytes<T>(_ body: (UnsafeRawBufferPointer) throws -> T) rethrows -> T {
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let c = count
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return try withUnsafeBytes { (p: UnsafePointer<UInt8>) throws -> T in
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try body(UnsafeRawBufferPointer(start: p, count: c))
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}
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}
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mutating func withUnsafeMutableBytes<T>(_ body: (UnsafeMutableRawBufferPointer) throws -> T) rethrows -> T {
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let c = count
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return try withUnsafeMutableBytes { (p: UnsafeMutablePointer<UInt8>) throws -> T in
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try body(UnsafeMutableRawBufferPointer(start: p, count: c))
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}
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}
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init(_ bytes: [UInt8]) {
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self.init(bytes: bytes)
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}
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}
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#endif
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