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gcc-8.2
author mir3636
date Thu, 25 Oct 2018 07:37:49 +0900
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// PR c++/87372
// { dg-do compile { target c++14 } }

constexpr int
foo (char const *s)
{
  int i = 0;
  while (s[i])
    ++i;
  return i;
}

constexpr int
bar ()
{
  constexpr int l = foo (__PRETTY_FUNCTION__);
  constexpr int l2 = foo (__FUNCTION__);
  constexpr int l3 = foo (__func__);
  return l + l2 + l3;
}
static_assert (bar () == 25, "");