p8.cpp revision 2fb4ae36825ca3a0cbe7e845c5747062870066be 
1// RUN: %clang_cc1 -std=c++11 %s -verify
2
3struct string;
4namespace std {
5  using size_t = decltype(sizeof(int));
6}
7
8void operator "" _km(long double); // ok
9string operator "" _i18n(const char*, std::size_t); // ok
10// FIXME: This should be accepted once we support UCNs
11template<char...> int operator "" \u03C0(); // ok, UCN for lowercase pi // expected-error {{expected identifier}}
12float operator ""E(const char *); // expected-error {{C++11 requires a space between literal and identifier}} expected-warning {{reserved}}
13float operator " " B(const char *); // expected-error {{must be '""'}} expected-warning {{reserved}}
14string operator "" 5X(const char *, std::size_t); // expected-error {{expected identifier}}
15double operator "" _miles(double); // expected-error {{parameter}}
16template<char...> int operator "" j(const char*); // expected-error {{parameter}}
17
18// FIXME: Accept this as an extension, with a fix-it to add the space
19float operator ""_E(const char *); // expected-error {{C++11 requires a space between the "" and the user-defined suffix in a literal operator}}
20