clang/test/Sema/MicrosoftExtensions.c

// RUN: %clang_cc1 %s -fsyntax-only -Wmicrosoft -verify -fms-extensions


struct A
{
   int a[];  /* expected-warning {{flexible array member 'a' in otherwise empty struct is a Microsoft extension}} */
};

struct C {
   int l;
   union {
       int c1[];   /* expected-warning {{flexible array member 'c1' in a union is a Microsoft extension}}  */
       char c2[];  /* expected-warning {{flexible array member 'c2' in a union is a Microsoft extension}} */
   };
};


struct D {
   int l;
   int D[];
};


enum ENUM1; // expected-warning {{forward references to 'enum' types are a Microsoft extension}}    
enum ENUM1 var1 = 3;
enum ENUM1* var2 = 0;


enum ENUM2 {
	ENUM2_a = (enum ENUM2) 4,
	ENUM2_b = 0x9FFFFFFF, // expected-warning {{enumerator value is not representable in the underlying type 'int'}}
	ENUM2_c = 0x100000000 // expected-warning {{enumerator value is not representable in the underlying type 'int'}}
};