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1 // PR c++/51213
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2 // { dg-do compile { target c++11 } }
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3
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4 class C {
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5 typedef int type;
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6 };
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7
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8 template<int>
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9 struct I;
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10
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11 template<>
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12 struct I<2> { };
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13
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14 template<class T, class = typename T::type>
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15 auto f(int) -> char;
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16
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17 template<class>
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18 auto f(...) -> char (&)[2];
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19
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20 static_assert(sizeof(f<C>(0)) == 2, "Ouch");
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21
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22 typedef int testf[sizeof(f<C>(0)) == 2 ? 1 : -1];
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23
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24 I<sizeof(f<C>(0))> vf;
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25
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26 template<class T>
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27 auto g(int) -> decltype(typename T::type(), char());
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28
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29 template<class>
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30 auto g(...) -> char (&)[2];
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31
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32 static_assert(sizeof(g<C>(0)) == 2, "Ouch");
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33
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34 typedef int testg[sizeof(g<C>(0)) == 2 ? 1 : -1];
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35
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36 I<sizeof(g<C>(0))> vg;
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