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/*
This source file is part of the Swift.org open source project
Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors
Licensed under Apache License v2.0 with Runtime Library Exception
See http://swift.org/LICENSE.txt for license information
See http://swift.org/CONTRIBUTORS.txt for Swift project authors
*/
import TSCLibc
/// `CStringArray` represents a C null-terminated array of pointers to C strings.
///
/// The lifetime of the C strings will correspond to the lifetime of the `CStringArray`
/// instance so be careful about copying the buffer as it may contain dangling pointers.
public final class CStringArray {
/// The null-terminated array of C string pointers.
public let cArray: [UnsafeMutablePointer<Int8>?]
/// Creates an instance from an array of strings.
public init(_ array: [String]) {
#if os(Windows)
cArray = array.map({ $0.withCString({ _strdup($0) }) }) + [nil]
#else
cArray = array.map({ $0.withCString({ strdup($0) }) }) + [nil]
#endif
}
deinit {
for case let element? in cArray {
free(element)
}
}
}
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