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annotate gcc/testsuite/g++.dg/cpp0x/decltype19.C @ 158:494b0b89df80 default tip

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author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Mon, 25 May 2020 18:13:55 +0900
parents 04ced10e8804
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 // PR c++/42013
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2
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3 template<typename _Tp>
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4 _Tp
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5 __attribute ((const)) declval();
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6
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7 template<typename _Tp, typename _Up>
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8 struct common_type
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9 {
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10 typedef __decltype(true ? declval<_Tp>() : declval<_Up>()) typet;
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11 typedef __decltype(false ? declval<_Tp>() : declval<_Up>()) typef;
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12 };
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13
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14 template<typename, typename> struct is_same;
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15
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16 template<typename _Tp> struct is_same<_Tp, _Tp> { typedef _Tp type; };
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17
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18 void f()
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19 {
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20 typedef common_type<int, const int>::typet typet;
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21 typedef common_type<int, const int>::typef typef;
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22
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23 typedef is_same<typet, typef>::type type;
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24 }