gistfile1.txt

let fname = "/tmp/scratch.txt"
let fptr = fopen(fname, "w")
if (fptr == nil) {
    let localErrno = errno
    println("Unable to open \(fname): \(strerror(localErrno))")
} else {
    let text = "Hello World\n"
    let bytesWritten = fwrite(text, UInt(sizeof(Byte)), strlen(text), fptr)
    println("Wrote \(bytesWritten) bytes")
    fclose(fptr)
}