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dduan/withCStrings.swift

Last active August 27, 2018 20:19
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A function that turns a Swift 3 [String] to an array of C strings (char *[]).
Raw
withCStrings.swift
func withCStrings(_ strings: [String], scoped: ([UnsafeMutablePointer<CChar>?]) throws -> Void) rethrows {
let cStrings = strings.map { strdup($0) }
try scoped(cStrings + [nil])
cStrings.forEach { free($0) }
}
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