//===----------------------------------------------------------------------===// // // The LLVM Compiler Infrastructure // // This file is dual licensed under the MIT and the University of Illinois Open // Source Licenses. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// // type_traits // enable_if #include <type_traits> int main() { #if _LIBCPP_STD_VER > 11 typedef std::enable_if_t<false> A; #else static_assert ( false, "" ); #endif }