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1 // { dg-do compile }
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2
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3 namespace boost_no_member_template_friends{
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4
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5 template <class T>
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6 class foobar;
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7
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8 template <class T>
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9 class foo
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10 {
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11 private:
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12 template<typename Y> friend class foobar;
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13 template<typename Y> friend class foo;
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14 template<typename Y> friend bool must_be_friend_proc(const foo<Y>& f);
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15 int i;
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16 public:
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17 foo(){ i = 0; }
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18 template <class U>
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19 foo(const foo<U>& f){ i = f.i; }
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20 };
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21
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22 template <class T>
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23 class foo;
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24
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25 template <class T>
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26 bool must_be_friend_proc(const foo<T>& f);
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27
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28 template <class T>
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29 bool must_be_friend_proc(const foo<T>& f)
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30 { return f.i != 0; }
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31
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32 template <class T>
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33 class foobar
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34 {
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35 int i;
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36 public:
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37 template <class U>
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38 foobar(const foo<U>& f)
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39 { i = f.i; }
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40 };
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41
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42
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43 int test()
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44 {
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45 foo<int> fi;
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46 foo<double> fd(fi);
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47 (void) &fd; // avoid "unused variable" warning
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48 foobar<long> fb(fi);
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49 (void) &fb; // avoid "unused variable" warning
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50 return 0;
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51 }
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52
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53 }
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