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annotate gcc/testsuite/g++.dg/cpp0x/constexpr-tuple2.C @ 131:84e7813d76e9

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gcc-8.2
author mir3636
date Thu, 25 Oct 2018 07:37:49 +0900
parents 04ced10e8804
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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111
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1 // PR c++/58910
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2 // { dg-do compile { target c++11 } }
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3
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4 #include <tuple>
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5
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6 using namespace std;
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7 struct t1{ constexpr t1(){} };
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8 struct t2{ constexpr t2(){} };
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9
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10 int main()
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11 {
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12 constexpr t1 T1;
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13 constexpr t2 T2;
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14 constexpr tuple<t1,t2> Tup1(T1,T2);
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15 constexpr tuple<t1,t1> Tup2(T1,T1);
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16 constexpr auto a=get<0>(Tup1 ); //works fine
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17 constexpr auto b=get<0>(Tup2 ); // error:
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18 //'(const std::_Head_base<0ul, t1, true>*)(& Tup2)'
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19 //is not a constant expression constexpr auto b=get<0>(Tup2 );
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20 }