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annotate gcc/testsuite/g++.dg/cpp1z/decomp47.C @ 131:84e7813d76e9

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gcc-8.2
author mir3636
date Thu, 25 Oct 2018 07:37:49 +0900
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131
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1 // PR c++/87122
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2 // { dg-do run { target c++14 } }
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3 // { dg-options "" }
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4
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5 extern "C" void abort ();
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6 struct S { int a, b; };
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7 int c;
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8
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9 template <int N>
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10 void
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11 foo ()
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12 {
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13 S x[4] = { { N, 2 }, { 3, 4 }, { 5, 6 }, { 7, 8 } };
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14 auto f = [](auto & y) {
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15 for (auto & [ u, v ] : y) // { dg-warning "structured bindings only available with" "" { target c++14_down } }
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16 {
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17 if ((u & 1) != 1 || v != u + 1 || u < N || u > 7 || (c & (1 << u))
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18 || &u != &y[v / 2 - 1].a || &v != &y[v / 2 - 1].b)
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19 abort ();
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20 c |= 1 << u;
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21 }
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22 };
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23 f (x);
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24 }
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25
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26 int
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27 main ()
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28 {
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29 foo<1> ();
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30 if (c != 0xaa)
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31 abort ();
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32 }