llvm-project/clang/test/Parser/cxx-attributes.cpp

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// RUN: %clang_cc1 -fsyntax-only -verify %s
class c {
virtual void f1(const char* a, ...)
__attribute__ (( __format__(__printf__,2,3) )) = 0;
virtual void f2(const char* a, ...)
__attribute__ (( __format__(__printf__,2,3) )) {}
};
template <typename T> class X {
template <typename S> void X<S>::f() __attribute__((locks_excluded())); // expected-error{{nested name specifier 'X<S>::' for declaration does not refer into a class, class template or class template partial specialization}} \
// expected-warning{{attribute locks_excluded ignored, because it is not attached to a declaration}}
};
namespace PR17666 {
const int A = 1;
typedef int __attribute__((__aligned__(A))) T1;
int check1[__alignof__(T1) == 1 ? 1 : -1];
typedef int __attribute__((aligned(int(1)))) T1;
typedef int __attribute__((aligned(int))) T2; // expected-error {{expected '(' for function-style cast}}
}
__attribute((typename)) int x; // expected-warning {{unknown attribute 'typename' ignored}}
void fn() {
void (*__attribute__((attr)) fn_ptr)() = &fn; // expected-warning{{unknown attribute 'attr' ignored}}
void (*__attribute__((attrA)) *__attribute__((attrB)) fn_ptr_ptr)() = &fn_ptr; // expected-warning{{unknown attribute 'attrA' ignored}} expected-warning{{unknown attribute 'attrB' ignored}}
void (&__attribute__((attr)) fn_lref)() = fn; // expected-warning{{unknown attribute 'attr' ignored}}
void (&&__attribute__((attr)) fn_rref)() = fn; // expected-warning{{unknown attribute 'attr' ignored}}
int i[5];
int (*__attribute__((attr(i[1]))) pi); // expected-warning{{unknown attribute 'attr' ignored}}
pi = &i[0];
}