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annotate gcc/testsuite/g++.dg/cpp2a/constexpr-virtual8.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 // P1064R0
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2 // { dg-do compile }
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3 // { dg-options "-std=c++2a" }
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4
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5 template<typename T>
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6 struct X1
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7 {
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8 virtual T f() const = 0;
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9 };
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10
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11 struct X2: public X1<int>
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12 {
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13 constexpr virtual int f() const { return 2; }
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14 };
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15
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16 struct X3: public X2
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17 {
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18 virtual int f() const { return 3; }
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19 };
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20
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21 struct X4: public X3
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22 {
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23 constexpr virtual int f() const { return 4; }
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24 };
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25
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26 constexpr int (X1<int>::*pf)() const = &X1<int>::f;
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27
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28 constexpr X2 x2;
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29 static_assert(x2.f() == 2);
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30 static_assert((x2.*pf)() == 2);
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31
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32 constexpr X1<int> const& r2 = x2;
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33 static_assert(r2.f() == 2);
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34 static_assert((r2.*pf)() == 2);
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35
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36 constexpr X1<int> const* p2 = &x2;
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37 static_assert(p2->f() == 2);
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38 static_assert((p2->*pf)() == 2);
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39
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40 constexpr X4 x4;
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41 static_assert(x4.f() == 4);
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42 static_assert((x4.*pf)() == 4);
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43
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44 constexpr X1<int> const& r4 = x4;
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45 static_assert(r4.f() == 4);
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46 static_assert((r4.*pf)() == 4);
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47
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48 constexpr X1<int> const* p4 = &x4;
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49 static_assert(p4->f() == 4);
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50 static_assert((p4->*pf)() == 4);