1f4a2713aSLionel Sambuc // RUN: %clang_cc1 %s -fsyntax-only -Wprivate-extern -verify 2f4a2713aSLionel Sambuc 3f4a2713aSLionel Sambuc // PR3310 4f4a2713aSLionel Sambuc struct a x1; // expected-note 2{{forward declaration of 'struct a'}} 5f4a2713aSLionel Sambuc static struct a x2; // expected-warning{{tentative definition of variable with internal linkage has incomplete non-array type 'struct a'}} 6f4a2713aSLionel Sambuc struct a x3[10]; // expected-error{{array has incomplete element type 'struct a'}} 7f4a2713aSLionel Sambuc struct a {int x;}; 8f4a2713aSLionel Sambuc static struct a x2_okay; 9f4a2713aSLionel Sambuc struct a x3_okay[10]; 10f4a2713aSLionel Sambuc struct b x4; // expected-error{{tentative definition has type 'struct b' that is never completed}} \ 11f4a2713aSLionel Sambuc // expected-note{{forward declaration of 'struct b'}} 12f4a2713aSLionel Sambuc 13f4a2713aSLionel Sambuc const int a [1] = {1}; 14f4a2713aSLionel Sambuc extern const int a[]; 15f4a2713aSLionel Sambuc 16f4a2713aSLionel Sambuc extern const int b[]; 17f4a2713aSLionel Sambuc const int b [1] = {1}; 18f4a2713aSLionel Sambuc 19f4a2713aSLionel Sambuc extern const int c[] = {1}; // expected-warning{{'extern' variable has an initializer}} 20f4a2713aSLionel Sambuc const int c[]; 21f4a2713aSLionel Sambuc 22f4a2713aSLionel Sambuc int i1 = 1; // expected-note {{previous definition is here}} 23f4a2713aSLionel Sambuc int i1 = 2; // expected-error {{redefinition of 'i1'}} 24f4a2713aSLionel Sambuc int i1; 25f4a2713aSLionel Sambuc int i1; 26*0a6a1f1dSLionel Sambuc extern int i5; // expected-note {{previous declaration is here}} 27f4a2713aSLionel Sambuc static int i5; // expected-error{{static declaration of 'i5' follows non-static declaration}} 28f4a2713aSLionel Sambuc 29f4a2713aSLionel Sambuc static int i2 = 5; // expected-note 1 {{previous definition is here}} 30f4a2713aSLionel Sambuc int i2 = 3; // expected-error{{non-static declaration of 'i2' follows static declaration}} 31f4a2713aSLionel Sambuc 32f4a2713aSLionel Sambuc static int i3 = 5; 33f4a2713aSLionel Sambuc extern int i3; 34f4a2713aSLionel Sambuc 35f4a2713aSLionel Sambuc // rdar://7703982 36f4a2713aSLionel Sambuc __private_extern__ int pExtern; // expected-warning {{use of __private_extern__ on a declaration may not produce external symbol private to the linkage unit and is deprecated}} \ 37f4a2713aSLionel Sambuc // expected-note {{use __attribute__((visibility("hidden"))) attribute instead}} 38f4a2713aSLionel Sambuc int pExtern = 0; 39f4a2713aSLionel Sambuc 40f4a2713aSLionel Sambuc int i4; 41f4a2713aSLionel Sambuc int i4; 42f4a2713aSLionel Sambuc extern int i4; 43f4a2713aSLionel Sambuc 44f4a2713aSLionel Sambuc int (*pToArray)[]; 45f4a2713aSLionel Sambuc int (*pToArray)[8]; 46f4a2713aSLionel Sambuc 47f4a2713aSLionel Sambuc int redef[10]; 48f4a2713aSLionel Sambuc int redef[]; // expected-note {{previous definition is here}} 49f4a2713aSLionel Sambuc int redef[11]; // expected-error{{redefinition of 'redef'}} 50f4a2713aSLionel Sambuc func()51f4a2713aSLionel Sambucvoid func() { 52*0a6a1f1dSLionel Sambuc extern int i6; // expected-note {{previous declaration is here}} 53f4a2713aSLionel Sambuc static int i6; // expected-error{{static declaration of 'i6' follows non-static declaration}} 54f4a2713aSLionel Sambuc } 55f4a2713aSLionel Sambuc func2(void)56f4a2713aSLionel Sambucvoid func2(void) 57f4a2713aSLionel Sambuc { 58f4a2713aSLionel Sambuc extern double *p; 59f4a2713aSLionel Sambuc extern double *p; 60f4a2713aSLionel Sambuc } 61f4a2713aSLionel Sambuc 62f4a2713aSLionel Sambuc // <rdar://problem/6808352> 63f4a2713aSLionel Sambuc static int a0[]; 64f4a2713aSLionel Sambuc static int b0; 65f4a2713aSLionel Sambuc 66f4a2713aSLionel Sambuc static int a0[] = { 4 }; 67f4a2713aSLionel Sambuc static int b0 = 5; 68