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1 // PR c++/43868
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2 // { dg-options "-g" }
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3
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4 struct Foo
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5 {
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6 virtual void do_something() = 0;
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7 };
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8
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9 template <typename T>
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10 struct Foo_impl;
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11
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12 template <typename R, typename O>
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13 struct Foo_impl<R (O::*)() const> : public Foo
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14 {
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15 struct Helper
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16 {
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17 typedef int Some_type;
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18 operator Some_type () const { return 0; }
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19 Helper( R (O::*)() const) {}
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20 };
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21
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22 void do_something() { Helper( 0); };
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23 };
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24
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25 void register_foo_internal( Foo*) {};
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26
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27 template <typename TT>
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28 void register_foo( TT) { register_foo_internal( new Foo_impl<TT>()); }
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29
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30 struct Bar
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31 {
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32 };
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33
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34 void setup()
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35 {
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36 register_foo( (int (Bar::*) () const) 0);
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37 }
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