1 // RUN: %clang_cc1 -fsyntax-only -verify %s -pedantic -std=c99 2 3 int __attribute__(()) x; 4 5 __inline void __attribute__((__always_inline__, __nodebug__)) 6 foo(void) { 7 } 8 9 10 __attribute__(()) y; // expected-warning {{defaults to 'int'}} 11 12 // PR2796 13 int (__attribute__(()) *z)(long y); 14 15 16 void f1(__attribute__(()) int x); 17 18 int f2(y, __attribute__(()) x); // expected-error {{expected identifier}} 19 20 // This is parsed as a normal argument list (with two args that are implicit 21 // int) because the __attribute__ is a declspec. 22 void f3(__attribute__(()) x, // expected-warning {{defaults to 'int'}} 23 y); // expected-warning {{defaults to 'int'}} 24 25 void f4(__attribute__(())); // expected-error {{expected parameter declarator}} 26 27 28 // This is ok, the __attribute__ applies to the pointer. 29 int baz(int (__attribute__(()) *x)(long y)); 30 31 void g1(void (*f1)(__attribute__(()) int x)); 32 void g2(int (*f2)(y, __attribute__(()) x)); // expected-error {{expected identifier}} 33 void g3(void (*f3)(__attribute__(()) x, int y)); // expected-warning {{defaults to 'int'}} 34 void g4(void (*f4)(__attribute__(()))); // expected-error {{expected parameter declarator}} 35 36 37 void (*h1)(void (*f1)(__attribute__(()) int x)); 38 void (*h2)(int (*f2)(y, __attribute__(()) x)); // expected-error {{expected identifier}} 39 40 void (*h3)(void (*f3)(__attribute__(()) x)); // expected-warning {{defaults to 'int'}} 41 void (*h4)(void (*f4)(__attribute__(()))); // expected-error {{expected parameter declarator}} 42 43 44 45 // rdar://6131260 46 int foo42(void) { 47 int x, __attribute__((unused)) y, z; 48 return 0; 49 } 50 51 // rdar://6096491 52 void __attribute__((noreturn)) d0(void), __attribute__((noreturn)) d1(void); 53 54 void d2(void) __attribute__((noreturn)), d3(void) __attribute__((noreturn)); 55 56 57 // PR6287 58 void __attribute__((returns_twice)) returns_twice_test(); 59 60 int aligned(int); 61 int __attribute__((vec_type_hint(char, aligned(16) )) missing_rparen_1; // expected-error {{expected ')'}} 62 int __attribute__((mode(x aligned(16) )) missing_rparen_2; // expected-error {{expected ')'}} 63 int __attribute__((format(printf, 0 aligned(16) )) missing_rparen_3; // expected-error {{expected ')'}} 64 65 66 67 int testFundef1(int *a) __attribute__((nonnull(1))) { // \ 68 // expected-warning {{GCC does not allow nonnull attribute in this position on a function definition}} 69 return *a; 70 } 71 72 // noreturn is lifted to type qualifier 73 void testFundef2() __attribute__((noreturn)) { // \ 74 // expected-warning {{GCC does not allow noreturn attribute in this position on a function definition}} 75 testFundef2(); 76 } 77 78 int testFundef3(int *a) __attribute__((nonnull(1), // \ 79 // expected-warning {{GCC does not allow nonnull attribute in this position on a function definition}} 80 pure)) { // \ 81 // expected-warning {{GCC does not allow pure attribute in this position on a function definition}} 82 return *a; 83 } 84 85 int testFundef4(int *a) __attribute__((nonnull(1))) // \ 86 // expected-warning {{GCC does not allow nonnull attribute in this position on a function definition}} 87 __attribute((pure)) { // \ 88 // expected-warning {{GCC does not allow pure attribute in this position on a function definition}} 89 return *a; 90 } 91 92 // GCC allows these 93 void testFundef5() __attribute__(()) { } 94 95 __attribute__((pure)) int testFundef6(int a) { return a; } 96 97 98 99
