test/Sema/MicrosoftExtensions.c

   1 // RUN: %clang_cc1 %s -fsyntax-only -Wno-unused-value -Wmicrosoft -verify -fms-extensions
   2
   3
   4 struct A
   5 {
   6    int a[];  /* expected-warning {{flexible array member 'a' in otherwise empty struct is a Microsoft extension}} */
   7 };
   8
   9 struct C {
  10    int l;
  11    union {
  12        int c1[];   /* expected-warning {{flexible array member 'c1' in a union is a Microsoft extension}}  */
  13        char c2[];  /* expected-warning {{flexible array member 'c2' in a union is a Microsoft extension}} */
  14    };
  15 };
  16
  17
  18 struct D {
  19    int l;
  20    int D[];
  21 };
  22
  23
  24 enum ENUM1; // expected-warning {{forward references to 'enum' types are a Microsoft extension}}
  25 enum ENUM1 var1 = 3;
  26 enum ENUM1* var2 = 0;
  27
  28
  29 enum ENUM2 {
  30   ENUM2_a = (enum ENUM2) 4,
  31   ENUM2_b = 0x9FFFFFFF, // expected-warning {{enumerator value is not representable in the underlying type 'int'}}
  32   ENUM2_c = 0x100000000 // expected-warning {{enumerator value is not representable in the underlying type 'int'}}
  33 };
  34
  35
  36
  37
  38 typedef struct notnested {
  39   long bad1;
  40   long bad2;
  41 } NOTNESTED;
  42
  43
  44 typedef struct nested1 {
  45   long a;
  46   struct notnested var1;
  47   NOTNESTED var2;
  48 } NESTED1;
  49
  50 struct nested2 {
  51   long b;
  52   NESTED1;  // expected-warning {{anonymous structs are a Microsoft extension}}
  53 };
  54
  55 struct test {
  56   int c;
  57   struct nested2;   // expected-warning {{anonymous structs are a Microsoft extension}}
  58 };
  59
  60 void foo()
  61 {
  62   struct test var;
  63   var.a;
  64   var.b;
  65   var.c;
  66   var.bad1;   // expected-error {{no member named 'bad1' in 'struct test'}}
  67   var.bad2;   // expected-error {{no member named 'bad2' in 'struct test'}}
  68 }
  69