19 lines
737 B
C++
19 lines
737 B
C++
|
// 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}}
|