clang/test/CXX/lex/lex.literal/lex.ext/p11.cpp

   1 // RUN: %clang_cc1 -fsyntax-only -std=c++11 -verify %s
   2
   3 using size_t = decltype(sizeof(int));
   4
   5 template<typename T, typename U> struct same_type;
   6 template<typename T> struct same_type<T, T> {};
   7 template<typename T> using X = T;
   8 template<typename CharT, X<CharT>...>
   9 int operator "" _x(); // expected-warning {{string literal operator templates are a GNU extension}}
  10 template<char...>
  11 double operator "" _x();
  12
  13 auto a="string"_x;
  14 auto b=42_x;
  15 same_type<decltype(a), int> test_a;
  16 same_type<decltype(b), double> test_b;
  17
  18 char operator "" _x(const char *begin, size_t size);
  19 auto c="string"_x;
  20 auto d=L"string"_x;
  21 same_type<decltype(c), char> test_c;
  22 same_type<decltype(d), int> test_d;