C++程序  |  16行  |  522 B

// RUN: %clang_cc1 -pedantic-errors -std=c++11 -emit-pch %s -o %t-cxx11
// RUN: %clang_cc1 -pedantic-errors -std=c++11 -include-pch %t-cxx11 -verify %s

#ifndef HEADER_INCLUDED

#define HEADER_INCLUDED
typedef auto f() -> int; // expected-note {{here}}
typedef int g(); // expected-note {{here}}

#else

typedef void f; // expected-error {{typedef redefinition with different types ('void' vs 'auto () -> int')}}
typedef void g; // expected-error {{typedef redefinition with different types ('void' vs 'int ()')}}

#endif