view gcc/testsuite/g++.dg/cpp0x/sfinae32.C @ 158:494b0b89df80 default tip

...
author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Mon, 25 May 2020 18:13:55 +0900
parents 04ced10e8804
children
line wrap: on
line source

// PR c++/51989
// { dg-do compile { target c++11 } }

template <typename T>
struct is_container
{
  template <typename U, typename V = decltype(((U*)0)->begin())>
  static char test(U* u);

  template <typename U> static long test(...);

  enum { value = sizeof test<T>(0) == 1 };
};

int main()
{
  return is_container<void>::value;
}