clang/test/Parser/objc-static-assert.m

   1 // RUN: %clang_cc1 -fobjc-runtime=macosx-fragile -fsyntax-only -verify -Wno-objc-root-class %s
   2 // RUN: %clang_cc1 -std=c89 -fobjc-runtime=macosx-fragile -fsyntax-only -verify -Wno-objc-root-class %s
   3
   4
   5 #if __STDC_VERSION__ >= 201112L
   6
   7 #if !__has_feature(objc_c_static_assert)
   8 #error failed
   9 #endif
  10
  11 #if !__has_extension(objc_c_static_assert)
  12 #error failed
  13 #endif
  14
  15 @interface A {
  16   int a;
  17   _Static_assert(1, "");
  18   _Static_assert(0, ""); // expected-error {{static assertion failed}}
  19
  20   _Static_assert(a, ""); // expected-error {{use of undeclared identifier 'a'}}
  21   _Static_assert(sizeof(a), ""); // expected-error {{use of undeclared identifier 'a'}}
  22 }
  23
  24 _Static_assert(1, "");
  25
  26 @end
  27
  28 struct S {
  29   @defs(A);
  30 };
  31
  32 #else
  33
  34 // _Static_assert is available before C11 as an extension, but -pedantic
  35 // warns on it.
  36 #if __has_feature(objc_c_static_assert)
  37 #error failed
  38 #endif
  39
  40 #if !__has_extension(objc_c_static_assert)
  41 #error failed
  42 #endif
  43
  44 @interface A {
  45   int a;
  46   _Static_assert(1, "");
  47   _Static_assert(0, ""); // expected-error {{static assertion failed}}
  48 }
  49
  50 _Static_assert(1, "");
  51
  52 @end
  53
  54 #endif