view gcc/testsuite/g++.dg/cpp0x/decltype39.C @ 131:84e7813d76e9

gcc-8.2
author mir3636
date Thu, 25 Oct 2018 07:37:49 +0900
parents 04ced10e8804
children
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line source

// PR c++/53788
// { dg-do compile { target c++11 } }

struct t { static const bool value = true; };
struct f { static const bool value = false; };

template<typename T>
struct has_static {
  template<typename X>
  static t check(X*, decltype(T::fun())* = 0); // { dg-error "without object" }
  static f check(...);

  typedef decltype(check((T*)(0))) ret;
  static const bool value = ret::value;
};

struct test { int fun() { return 0; } };

bool b = has_static<test>::value;