// N4606 Committee Draft, Standard for Programming Language C++
// http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2016/n4606.pdf
#define msg "p336.cpp(158)13.4 Address of overloaded function [over.over]"
// Edited by Dr. Ogawa Kiyoshi. Compile procedure and results record.

#include <iostream>

int f(double);
int f(int);
int (*pfd)(double) = &f; // selects f(double)
int (*pfi)(int) = &f; // selects f(int)
int (*pfe)(...) = &f; // error: type mismatch
int (&rfi)(int) = f; // selects f(int)
int (&rfd)(double) = f; // selects f(double)
void g() {
  (int (*)(int))&f; // cast expression as selector
}

struct X {
  int f1(int);
  static int f1(long);
};
int (X::*p1)(int) = &X::f1; // OK
int (*p2)(int) = &X::f1; // error: mismatch
int (*p3)(long) = &X::f1; // OK
int (X::*p4)(long) = &X::f1; // error: mismatch
int (X::*p5)(int) = &(X::f1); // error: wrong syntax for
// pointer to member
int (*p6)(long) = &(X::f1); // OK

struct D {};
struct B : public D {};
D* f2();
B* (*p1)() = &f2; // error
void g2(D*);
void (*p2)(B*) = &g2; // error

int main() {
  std::cout<< msg << std::endl;
  return EXIT_SUCCESS;
}

$ ./cppgl17.sh p336
$ clang++ p336.cpp
p336.cpp:12:20: error: address of overloaded function 'f' does not match required type 'int (...)'
int (*pfe)(...) = &f; // error: type mismatch
                   ^
p336.cpp:9:5: note: candidate function has different number of parameters (expected 0 but has 1)
int f(int);
    ^
p336.cpp:8:5: note: candidate function has different number of parameters (expected 0 but has 1)
int f(double);
    ^
p336.cpp:16:1: warning: expression result unused [-Wunused-value]
(int (*)(int))&f; // cast expression as selector
^             ~~
p336.cpp:24:19: error: address of overloaded function 'f1' does not match required type 'int (int)'
int (*p2)(int) = &X::f1; // error: mismatch
                  ^~~~~
p336.cpp:20:5: note: candidate function
int f1(int);
    ^
p336.cpp:21:12: note: candidate function has type mismatch at 1st parameter (expected 'int' but has 'long')
static int f1(long);
           ^
p336.cpp:26:23: error: address of overloaded function 'f1' does not match required type 'int (long)'
int (X::*p4)(long) = &X::f1; // error: mismatch
                      ^~~~~
p336.cpp:20:5: note: candidate function has type mismatch at 1st parameter (expected 'long' but has 'int')
int f1(int);
    ^
p336.cpp:21:12: note: candidate function
static int f1(long);
           ^
p336.cpp:27:26: error: cannot form member pointer of type 'int (X::*)(int)' without '&' and class name
int (X::*p5)(int) = &(X::f1); // error: wrong syntax for
                      ~~~^~
p336.cpp:34:6: error: redefinition of 'p1' with a different type: 'B *(*)()' vs 'int (X::*)(int)'
B* (*p1)() = &f2; // error
     ^
p336.cpp:23:10: note: previous definition is here
int (X::*p1)(int) = &X::f1; // OK
         ^
p336.cpp:36:8: error: redefinition of 'p2'
void (*p2)(B*) = &g2; // error
       ^
p336.cpp:24:7: note: previous definition is here
int (*p2)(int) = &X::f1; // error: mismatch
      ^
1 warning and 6 errors generated.

$ g++-7 p336.cpp
p336.cpp:12:20: error: no matches converting function 'f' to type 'int (*)(...)'
 int (*pfe)(...) = &f; // error: type mismatch
                    ^
p336.cpp:9:5: note: candidates are: int f(int)
 int f(int);
     ^
p336.cpp:8:5: note:                 int f(double)
 int f(double);
     ^
p336.cpp:24:22: error: no matches converting function 'f1' to type 'int (*)(int)'
 int (*p2)(int) = &X::f1; // error: mismatch
                      ^~
p336.cpp:21:12: note: candidates are: static int X::f1(long int)
 static int f1(long);
            ^~
p336.cpp:20:5: note:                 int X::f1(int)
 int f1(int);
     ^~
p336.cpp:26:26: error: no matches converting function 'f1' to type 'int (struct X::*)(long int)'
 int (X::*p4)(long) = &X::f1; // error: mismatch
                          ^~
p336.cpp:21:12: note: candidates are: static int X::f1(long int)
 static int f1(long);
            ^~
p336.cpp:20:5: note:                 int X::f1(int)
 int f1(int);
     ^~
p336.cpp:27:28: error: assuming pointer to member 'int X::f1(int)' [-fpermissive]
 int (X::*p5)(int) = &(X::f1); // error: wrong syntax for
                            ^
p336.cpp:27:28: note: (a pointer to member can only be formed with '&X::f1')
p336.cpp:34:10: error: conflicting declaration 'B* (* p1)()'
 B* (*p1)() = &f2; // error
          ^
p336.cpp:23:17: note: previous declaration as 'int (X::* p1)(int)'
 int (X::*p1)(int) = &X::f1; // OK
                 ^
p336.cpp:36:14: error: conflicting declaration 'void (* p2)(B*)'
 void (*p2)(B*) = &g2; // error
              ^
p336.cpp:24:7: note: previous declaration as 'int (* p2)(int)'
 int (*p2)(int) = &X::f1; // error: mismatch
       ^~