p8.cpp revision 99831e4677a7e2e051af636221694d60ba31fcdb 
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}}
12// FIXME: Accept this as an extension, with a fix-it to add the space
13float operator ""E(const char *); // expected-error {{C++11 requires a space between the "" and the user-defined suffix in a literal operator}}
14float operator " " B(const char *); // expected-error {{must be '""'}} expected-warning {{hexfloat}}
15string operator "" 5X(const char *, std::size_t); // expected-error {{expected identifier}}
16double operator "" _miles(double); // expected-error {{parameter}}
17template<char...> int operator "" j(const char*); // expected-error {{parameter}}
18