C++程序  |  22行  |  713 B

// RUN: %clang_cc1 -fsyntax-only -verify %s

extern char *bork;
char *& bar = bork;

int val;

void foo(int &a) {
}

typedef int & A;

void g(const A aref) { // expected-warning {{'const' qualifier on reference type 'A' (aka 'int &') has no effect}}
}

int & const X = val; // expected-error {{'const' qualifier may not be applied to a reference}}
int & volatile Y = val; // expected-error {{'volatile' qualifier may not be applied to a reference}}
int & const volatile Z = val; /* expected-error {{'const' qualifier may not be applied}} \
                           expected-error {{'volatile' qualifier may not be applied}} */

typedef int && RV; // expected-warning {{rvalue references are a C++11 extension}}