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author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Mon, 25 May 2020 18:13:55 +0900
parents 04ced10e8804
children
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// PR c++/56998

class Secret;
char IsNullLiteralHelper(Secret* p);
char (&IsNullLiteralHelper(...))[2];

struct C
{
  int val() { return 42; }
};

template <typename T>
unsigned f()
{
  return sizeof(IsNullLiteralHelper(C().val()));
}