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

   1 /*<-
   2
   3 Copyright Barrett Adair 2016-2017
   4
   5 Distributed under the Boost Software License, Version 1.0.
   6 (See accompanying file LICENSE.md or copy at http ://boost.org/LICENSE_1_0.txt)
   7 ->*/
   8
   9 //[ remove_varargs
  10 #include <type_traits>
  11 #include <boost/callable_traits/remove_varargs.hpp>
  12
  13 namespace ct = boost::callable_traits;
  14
  15 struct foo {};
  16
  17 int main() {
  18
  19     {
  20         using f = void(int, ...);
  21         using expect = void(int);
  22         using test = ct::remove_varargs_t<f>;
  23         static_assert(std::is_same<test, expect>::value, "");
  24     } {
  25         using fp = void(*)(...);
  26         using expect = void(*)();
  27         using test = ct::remove_varargs_t<fp>;
  28         static_assert(std::is_same<test, expect>::value, "");
  29     } {
  30         using fr = void(&)(const char*, ...);
  31         using expect = void(&)(const char*);
  32         using test = ct::remove_varargs_t<fr>;
  33         static_assert(std::is_same<test, expect>::value, "");
  34     } {
  35         using pmf = void(foo::*)(...) const;
  36         using expect = void(foo::*)() const;
  37         using test = ct::remove_varargs_t<pmf>;
  38         static_assert(std::is_same<test, expect>::value, "");
  39     }
  40 }
  41 //]