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1 // PR c++/78358
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2 // { dg-do run { target c++17 } }
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3
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4 #include <tuple>
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5
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6 template <typename, typename> struct same_type;
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7 template <typename T> struct same_type<T, T> {};
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8
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9 int main() {
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10 std::tuple tuple = { 1, 'a', 2.3, true };
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11 auto[i, c, d, b] = tuple;
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12 same_type<std::tuple_element<0, decltype(tuple)>::type, decltype(i)>{};
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13 same_type<decltype(i), int>{};
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14 same_type<decltype(c), char>{};
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15 same_type<decltype(d), double>{};
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16 same_type<decltype(b), bool>{};
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17 if (i != 1 || c != 'a' || d != 2.3 || b != true)
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18 __builtin_abort ();
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19 }
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