/- Copyright (c) 2018 Microsoft Corporation. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Leonardo de Moura -/ prelude import Init.Data.Nat.Basic namespace System namespace Platform @[extern "lean_system_platform_windows"] opaque getIsWindows : Unit → Bool @[extern "lean_system_platform_osx"] opaque getIsOSX : Unit → Bool @[extern "lean_system_platform_emscripten"] opaque getIsEmscripten : Unit → Bool def isWindows : Bool := getIsWindows () def isOSX : Bool := getIsOSX () def isEmscripten : Bool := getIsEmscripten () end Platform end System