| // RUN: %clang_cc1 -std=c++11 -verify %s |
| |
| using size_t = decltype(sizeof(int)); |
| constexpr const char *operator "" _id(const char *p, size_t) { return p; } |
| constexpr const char *s = "foo"_id "bar" "baz"_id "quux"; |
| |
| constexpr bool streq(const char *p, const char *q) { |
| return *p == *q && (!*p || streq(p+1, q+1)); |
| } |
| static_assert(streq(s, "foobarbazquux"), ""); |
| |
| constexpr const char *operator "" _trim(const char *p, size_t n) { |
| return *p == ' ' ? operator "" _trim(p + 1, n - 1) : p; |
| } |
| constexpr const char *t = " " " "_trim " foo"; |
| static_assert(streq(t, "foo"), ""); |
| |
| const char *u = "foo" "bar"_id "baz" "quux"_di "corge"; // expected-error {{differing user-defined suffixes ('_id' and '_di') in string literal concatenation}} |
