71 lines
		
	
	
		
			2.8 KiB
		
	
	
	
		
			C
		
	
	
	
			
		
		
	
	
			71 lines
		
	
	
		
			2.8 KiB
		
	
	
	
		
			C
		
	
	
	
// RUN: %clang_cc1 -fsyntax-only -verify %s
 | 
						|
 | 
						|
int outer1; // expected-note{{previous definition is here}}
 | 
						|
extern int outer2; // expected-note{{previous declaration is here}}
 | 
						|
int outer4;
 | 
						|
int outer4; // expected-note{{previous definition is here}}
 | 
						|
int outer5;
 | 
						|
int outer6(float); // expected-note{{previous definition is here}}
 | 
						|
int outer7(float);
 | 
						|
 | 
						|
void outer_test() {
 | 
						|
  extern float outer1; // expected-error{{redeclaration of 'outer1' with a different type}}
 | 
						|
  extern float outer2; // expected-error{{redeclaration of 'outer2' with a different type}}
 | 
						|
  extern float outer3; // expected-note{{previous declaration is here}}
 | 
						|
  double outer4;
 | 
						|
  extern int outer5; // expected-note{{previous declaration is here}}
 | 
						|
  extern int outer6; // expected-error{{redefinition of 'outer6' as different kind of symbol}}
 | 
						|
  int outer7;
 | 
						|
  extern int outer8; // expected-note{{previous definition is here}}
 | 
						|
  extern int outer9;
 | 
						|
  {
 | 
						|
    extern int outer9; // expected-note{{previous declaration is here}}
 | 
						|
  }
 | 
						|
}
 | 
						|
 | 
						|
int outer3; // expected-error{{redefinition of 'outer3' with a different type}}
 | 
						|
float outer4; // expected-error{{redefinition of 'outer4' with a different type}}
 | 
						|
float outer5;  // expected-error{{redefinition of 'outer5' with a different type}}
 | 
						|
int outer8(int); // expected-error{{redefinition of 'outer8' as different kind of symbol}}
 | 
						|
float outer9; // expected-error{{redefinition of 'outer9' with a different type}}
 | 
						|
 | 
						|
extern int outer13; // expected-note{{previous declaration is here}}
 | 
						|
void outer_shadowing_test() {
 | 
						|
  extern int outer10;
 | 
						|
  extern int outer11; // expected-note{{previous declaration is here}}
 | 
						|
  extern int outer12; // expected-note{{previous declaration is here}}
 | 
						|
  {
 | 
						|
    float outer10;
 | 
						|
    float outer11;
 | 
						|
    float outer12;
 | 
						|
    {
 | 
						|
      extern int outer10; // okay
 | 
						|
      extern float outer11; // expected-error{{redeclaration of 'outer11' with a different type}}
 | 
						|
      static double outer12;
 | 
						|
      {
 | 
						|
        extern float outer12; // expected-error{{redeclaration of 'outer12' with a different type}}
 | 
						|
        extern float outer13; // expected-error{{redeclaration of 'outer13' with a different type}}
 | 
						|
      }
 | 
						|
    }
 | 
						|
  }
 | 
						|
}
 | 
						|
 | 
						|
void g18(void) { // expected-note{{'g18' declared here}}
 | 
						|
  extern int g19;
 | 
						|
}
 | 
						|
int *p=&g19; // expected-error{{use of undeclared identifier 'g19'}} \
 | 
						|
             // expected-warning{{incompatible pointer types}}
 | 
						|
 | 
						|
// PR3645
 | 
						|
static int a;
 | 
						|
extern int a; // expected-note {{previous declaration is here}}
 | 
						|
int a;	// expected-error {{non-static declaration of 'a' follows static declaration}}
 | 
						|
 | 
						|
void f(int x) { // expected-note {{previous definition is here}}
 | 
						|
  extern int x; // expected-error {{extern declaration of 'x' follows non-extern declaration}}
 | 
						|
}
 | 
						|
 | 
						|
extern int b[];
 | 
						|
void g20() { extern int b[3]; } // expected-note{{previous declaration is here}}
 | 
						|
void g21() { extern int b[4]; } // expected-error{{redeclaration of 'b' with a different type: 'int [4]' vs 'int [3]'}}
 |