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145
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1 // { dg-do compile { target c++17_only } }
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131
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2 // { dg-options "-fconcepts" }
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111
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3
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4 template<typename T>
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5 concept bool Class() { return __is_class(T); }
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6
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7 template<Class T> void f(T) { }
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8
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9 template<typename T> void fn(T) { }
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10
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145
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11 auto p1 = &f<int>; // { dg-error "" }
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111
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12 void (*p2)(int) = &f<int>; // { dg-error "no matches" }
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13 void (*p3)(int) = &f; // { dg-error "no matches" }
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14
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15 struct S {
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131
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16 template<Class T> int f(T) { return 0; }
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111
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17 };
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18
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145
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19 auto p4 = &S::template f<int>; // { dg-error "" }
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111
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20 int (S::*p6)(int) = &S::template f<int>; // { dg-error "no matches" }
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21 int (S::*p7)(int) = &S::f; // { dg-error "no matches" }
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22
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23 template<typename T>
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24 void g(T x) { }
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25
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26 int main () {
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27 g(&f<int>); // { dg-error "no matches" }
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28 }
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