clang/test/SemaCXX/alignof-sizeof-reference.cpp

   1 // RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify %s
   2
   3 struct s0; // expected-note {{forward declaration}}
   4 char ar[sizeof(s0&)]; // expected-error {{invalid application of 'sizeof' to an incomplete type}}
   5 void test() {
   6   char &r = ar[0];
   7   static_assert(alignof(r) == 1, "bad alignment"); // expected-warning {{GNU extension}}
   8   static_assert(alignof(char&) == 1, "bad alignment");
   9   static_assert(sizeof(r) == 1, "bad size");
  10   static_assert(sizeof(char&) == 1, "bad size");
  11 }
  12
  13 int f();  // expected-note{{possible target for call}}
  14 int f(int);  // expected-note{{possible target for call}}
  15 void g() {
  16   sizeof(&f); // expected-error{{reference to overloaded function could not be resolved; did you mean to call it with no arguments?}} \
  17   // expected-warning{{expression result unused}}
  18 }
  19
  20 template<typename T> void f_template(); // expected-note{{possible target for call}}
  21 template<typename T> void f_template(T*); // expected-note{{possible target for call}}
  22 void rdar9659191() {
  23   (void)alignof(f_template<int>); // expected-error{{reference to overloaded function could not be resolved; did you mean to call it?}} expected-warning {{GNU extension}}
  24 }