2 // { dg-do run { target c++14 } }
4 typedef __SIZE_TYPE__ size_t;
9 constexpr S() = default;
12 constexpr S (char const (&d)[M]) : data { 0 }
14 static_assert (M <= N, "size!");
15 for (size_t i = 0; i != M; i++)
23 s (char const (&d)[N])
26 for (size_t i = 0; i != N; i++)
31 template <size_t N, size_t M>
33 concat (S<N> const& s1, S<M> const& s2)
36 for (size_t i = 0; i != M; i++)
37 s.data[N + i - 1] = s2.data[i];
41 template <size_t N, size_t M>
43 concat (char const (&x)[N], char const (&y)[M])
46 for (size_t i = 0; i != M; i++)
47 tmp.data[N+i-1] = y[i];
54 auto constexpr s1 = s ("bla");
55 auto constexpr s2 = s ("blub");
56 S<8> constexpr s1s2 = concat (s1, s2);
57 auto constexpr c = concat ("bla", "blub");
58 if (__builtin_strcmp (s1.data, "bla")
59 || __builtin_strcmp (s2.data, "blub")
60 || __builtin_strcmp (s1s2.data, "blablub")
61 || __builtin_strcmp (c.data, "blablub"))