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111
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1 // PR c++/65949
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2 // { dg-do compile { target c++14 } }
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3
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4 #include <initializer_list>
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5
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6 template<class T, class... Ts>
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7 struct Over : T, Over<Ts...>::type
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8 {
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9 using type = Over;
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10
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11 Over(T f1, Ts... f2)
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12 : T(f1), Over<Ts...>::type(f2...)
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13 {
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14 }
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15
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16 using T::operator();
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17 using Over<Ts...>::type::operator();
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18 };
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19
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20 template<class T>
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21 struct Over<T> : T
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22 {
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23 using type = T;
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24 using T::operator();
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25 };
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26
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27 template <class... Lambdas>
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28 auto CreateLambdas(Lambdas... lambdas)
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29 {
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30 return Over<Lambdas...>(lambdas...);
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31 }
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32
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33 int main()
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34 {
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35 auto mesLambda = CreateLambdas
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36 (
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37 []()
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38 {
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39
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40 },
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41
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42 [](auto i)
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43 {
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44 (void)i;
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45 },
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46
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47 [](auto... args)
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48 {
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49 auto list = {args...};
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50
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51 for(auto &&a : list)
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52 (void)a;
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53
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54 return 3;
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55 }
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56 );
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57
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58 mesLambda();
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59 mesLambda(1);
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60 mesLambda(12,24,36,48);
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61 }
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