1// RUN: %clang_cc1 %s -fsyntax-only -Wprivate-extern -verify 2 3// PR3310 4struct a x1; // expected-note 2{{forward declaration of 'struct a'}} 5static struct a x2; // expected-warning{{tentative definition of variable with internal linkage has incomplete non-array type 'struct a'}} 6struct a x3[10]; // expected-error{{array has incomplete element type 'struct a'}} 7struct a {int x;}; 8static struct a x2_okay; 9struct a x3_okay[10]; 10struct b x4; // expected-error{{tentative definition has type 'struct b' that is never completed}} \ 11 // expected-note{{forward declaration of 'struct b'}} 12 13const int a [1] = {1}; 14extern const int a[]; 15 16extern const int b[]; 17const int b [1] = {1}; 18 19extern const int c[] = {1}; // expected-warning{{'extern' variable has an initializer}} 20const int c[]; 21 22int i1 = 1; // expected-note {{previous definition is here}} 23int i1 = 2; // expected-error {{redefinition of 'i1'}} 24int i1; 25int i1; 26extern int i5; // expected-note {{previous definition is here}} 27static int i5; // expected-error{{static declaration of 'i5' follows non-static declaration}} 28 29static int i2 = 5; // expected-note 1 {{previous definition is here}} 30int i2 = 3; // expected-error{{non-static declaration of 'i2' follows static declaration}} 31 32static int i3 = 5; 33extern int i3; 34 35// rdar://7703982 36__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}} \ 37// expected-note {{use __attribute__((visibility("hidden"))) attribute instead}} 38int pExtern = 0; 39 40int i4; 41int i4; 42extern int i4; 43 44int (*pToArray)[]; 45int (*pToArray)[8]; 46 47int redef[10]; 48int redef[]; // expected-note {{previous definition is here}} 49int redef[11]; // expected-error{{redefinition of 'redef'}} 50 51void func() { 52 extern int i6; // expected-note {{previous definition is here}} 53 static int i6; // expected-error{{static declaration of 'i6' follows non-static declaration}} 54} 55 56void func2(void) 57{ 58 extern double *p; 59 extern double *p; 60} 61 62// <rdar://problem/6808352> 63static int a0[]; 64static int b0; 65 66static int a0[] = { 4 }; 67static int b0 = 5; 68