// while.swift

#if os(OSX) || os(iOS) // for libraries, portable for OSX and Linux
import Foundation
#elseif os(Linux)
import Glibc
#endif// 

print("while.swift running")
var n = 2
while n < 100 {
  print("n=\(n)")
  n = 2*n
}
print("final n=\(n)  \n")

var m = 2
repeat {
  print("m=\(m)")
  m *= 2
} while m < 100
print("final m=\(m)")
print("\n while.swift finished")