ceph/src/boost/libs/callable_traits/example/has_void_return.cpp

   1 /*<-
   2 Copyright (c) 2016 Barrett Adair
   3
   4 Distributed under the Boost Software License, Version 1.0.
   5 (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
   6 ->*/
   7
   8 //[ has_void_return
   9 #include <type_traits>
  10 #include <boost/callable_traits/has_void_return.hpp>
  11
  12 namespace ct = boost::callable_traits;
  13
  14 static_assert(ct::has_void_return<void()>::value, "");
  15 static_assert(!ct::has_void_return<int()>::value, "");
  16
  17 int main() {}
  18 //]