clang/test/Parser/cxx2c-oxford-variadic-comma.cpp

   1 // RUN: %clang_cc1 -std=c++2c -fsyntax-only -fblocks -verify %s
   2
   3 void a(...);
   4
   5 void b(auto...);
   6 void c(auto, ...);
   7
   8 void d(auto......); // expected-warning {{declaration of a variadic function without a comma before '...' is deprecated}} \
   9                     // expected-warning {{'...' in this location creates a C-style varargs function}} \
  10                     // expected-note {{preceding '...' declares a function parameter pack}} \
  11                     // expected-note {{insert ',' before '...' to silence this warning}}
  12 void e(auto..., ...);
  13
  14 void f(auto x...); // expected-warning {{declaration of a variadic function without a comma before '...' is deprecated}}
  15 void g(auto x, ...);
  16
  17 void h(auto... x...); // expected-warning {{declaration of a variadic function without a comma before '...' is deprecated}} \
  18                       // expected-warning {{'...' in this location creates a C-style varargs function}} \
  19                       // expected-note {{preceding '...' declares a function parameter pack}} \
  20                       // expected-note {{insert ',' before '...' to silence this warning}}
  21 void i(auto... x, ...);
  22
  23 template<class ...Ts>
  24 void j(Ts... t...) {}; // expected-warning {{declaration of a variadic function without a comma before '...' is deprecated}} \
  25                        // expected-warning {{'...' in this location creates a C-style varargs function}} \
  26                        // expected-note {{preceding '...' declares a function parameter pack}} \
  27                        // expected-note {{insert ',' before '...' to silence this warning}}
  28 template<class ...Ts>
  29 void k(Ts... t, ...) {}
  30
  31 void l(int...); // expected-warning {{declaration of a variadic function without a comma before '...' is deprecated}}
  32 void m(int, ...);
  33
  34 void n(int x...); // expected-warning {{declaration of a variadic function without a comma before '...' is deprecated}}
  35 void o(int x, ...);
  36
  37 struct S {
  38   void p(this S...) {} // expected-warning {{declaration of a variadic function without a comma before '...' is deprecated}}
  39 };
  40
  41 template<class ...Ts>
  42 void q(Ts......) {} // expected-warning {{declaration of a variadic function without a comma before '...' is deprecated}} \
  43                     // expected-warning {{'...' in this location creates a C-style varargs function}} \
  44                     // expected-note {{preceding '...' declares a function parameter pack}} \
  45                     // expected-note {{insert ',' before '...' to silence this warning}}
  46
  47 template<class T>
  48 void r(T...) {} // expected-warning {{declaration of a variadic function without a comma before '...' is deprecated}}
  49
  50 auto type_specifier = (void (*)(int...)) nullptr; // expected-warning {{declaration of a variadic function without a comma before '...' is deprecated}}
  51
  52 auto lambda = [](int...) {}; // expected-warning {{declaration of a variadic function without a comma before '...' is deprecated}}
  53
  54 auto block = ^(int...){}; // expected-warning {{declaration of a variadic function without a comma before '...' is deprecated}}