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      1 // RUN: %clang_cc1 -fsyntax-only -verify %s
      2 int f(double); // expected-note{{candidate function}}
      3 int f(int); // expected-note{{candidate function}}
      4 
      5 int (*pfd)(double) = f; // selects f(double)
      6 int (*pfd2)(double) = &f; // selects f(double)
      7 int (*pfd3)(double) = ((&((f)))); // selects f(double)
      8 int (*pfi)(int) = &f;    // selects f(int)
      9 // FIXME: This error message is not very good. We need to keep better
     10 // track of what went wrong when the implicit conversion failed to
     11 // give a better error message here.
     12 int (*pfe)(...) = &f;    // expected-error{{address of overloaded function 'f' does not match required type 'int (...)'}}
     13 int (&rfi)(int) = f;     // selects f(int)
     14 int (&rfd)(double) = f;  // selects f(double)
     15 
     16 void g(int (*fp)(int));   // expected-note{{note: candidate function}}
     17 void g(int (*fp)(float));
     18 void g(int (*fp)(double)); // expected-note{{note: candidate function}}
     19 
     20 int g1(int);
     21 int g1(char);
     22 
     23 int g2(int);
     24 int g2(double);
     25 
     26 template<typename T> T g3(T);
     27 int g3(int);
     28 int g3(char);
     29 
     30 void g_test() {
     31   g(g1);
     32   g(g2); // expected-error{{call to 'g' is ambiguous; candidates are:}}
     33   g(g3);
     34 }
     35 
     36 template<typename T> T h1(T);
     37 template<typename R, typename A1> R h1(A1);
     38 int h1(char);
     39 
     40 void ha(int (*fp)(int));
     41 void hb(int (*fp)(double));
     42 
     43 void h_test() {
     44   ha(h1);
     45   hb(h1);
     46 }
     47 
     48 struct A { };
     49 void f(void (*)(A *));
     50 
     51 struct B
     52 {
     53   void g() { f(d); }
     54   void d(void *);
     55   static void d(A *);
     56 };
     57 
     58 struct C {
     59   C &getC() {
     60     return makeAC; // expected-error{{reference to non-static member function must be called}}
     61   }
     62 
     63   C &makeAC();
     64   const C &makeAC() const;
     65 
     66   static void f(); // expected-note{{candidate function}}
     67   static void f(int); // expected-note{{candidate function}}
     68 
     69   void g() {
     70     int (&fp)() = f; // expected-error{{address of overloaded function 'f' does not match required type 'int ()'}}
     71   }
     72 };
     73 
     74 // PR6886
     75 namespace test0 {
     76   void myFunction(void (*)(void *));
     77 
     78   class Foo {
     79     void foo();
     80 
     81     static void bar(void*);
     82     static void bar();
     83   };
     84 
     85   void Foo::foo() {
     86     myFunction(bar);
     87   }
     88 }
     89 
     90 namespace PR7971 {
     91   struct S {
     92     void g() {
     93       f(&g);
     94     }
     95     void f(bool (*)(int, char));
     96     static bool g(int, char);
     97   };
     98 }
     99 
    100 namespace PR8033 {
    101   template <typename T1, typename T2> int f(T1 *, const T2 *); // expected-note 2{{candidate function [with T1 = const int, T2 = int]}}
    102   template <typename T1, typename T2> int f(const T1 *, T2 *); // expected-note 2{{candidate function [with T1 = int, T2 = const int]}}
    103   int (*p)(const int *, const int *) = f; // expected-error{{address of overloaded function 'f' is ambiguous}} \
    104   // expected-error{{address of overloaded function 'f' is ambiguous}}
    105 
    106 }
    107 
    108 namespace PR8196 {
    109   template <typename T> struct mcdata {
    110     typedef int result_type;
    111   };
    112   template <class T>
    113     typename mcdata<T>::result_type wrap_mean(mcdata<T> const&);
    114   void add_property(double(*)(mcdata<double> const &)); // expected-note{{candidate function not viable: no overload of 'wrap_mean' matching}}
    115   void f() {
    116     add_property(&wrap_mean); // expected-error{{no matching function for call to 'add_property'}}
    117   }
    118 }
    119 
    120 namespace PR7425 {
    121   template<typename T>
    122   void foo()
    123   {
    124   }
    125 
    126   struct B
    127   {
    128     template<typename T>
    129     B(const T&)
    130     {
    131     }
    132   };
    133 
    134   void bar(const B& b)
    135   {
    136   }
    137 
    138   void bar2(const B& b = foo<int>)
    139   {
    140   }
    141 
    142   void test(int argc, char** argv)
    143   {
    144     bar(foo<int>);
    145     bar2();
    146   }
    147 }
    148