clang/test/PCH/cxx11-user-defined-literals.cpp

   1 // RUN: %clang_cc1 -pedantic-errors -std=c++11 -emit-pch %s -o %t
   2 // RUN: %clang_cc1 -pedantic-errors -std=c++11 -include-pch %t -verify %s
   3
   4 // RUN: %clang_cc1 -pedantic-errors -std=c++11 -emit-pch -fpch-instantiate-templates %s -o %t
   5 // RUN: %clang_cc1 -pedantic-errors -std=c++11 -include-pch %t -verify %s
   6
   7 #ifndef HEADER_INCLUDED
   8
   9 #define HEADER_INCLUDED
  10
  11 using size_t = decltype(sizeof(int));
  12 int operator"" _foo(const char *p, size_t);
  13
  14 template<typename T> auto f(T t) -> decltype(t + ""_foo) { return 0; }
  15
  16 #else
  17
  18 int j = ""_foo;
  19 int k = f(0);
  20 int *l = f(&k);
  21 struct S {};
  22 int m = f(S()); // expected-error {{no matching}}
  23                 // expected-note@14 {{substitution failure}}
  24
  25 #endif