clang/test/Preprocessor/has_attribute.c

   1 // RUN: %clang_cc1 -triple arm-unknown-linux -verify -E %s -o - | FileCheck %s
   2
   3 // CHECK: always_inline
   4 #if __has_attribute(always_inline)
   5 int always_inline();
   6 #endif
   7
   8 // CHECK: __always_inline__
   9 #if __has_attribute(__always_inline__)
  10 int __always_inline__();
  11 #endif
  12
  13 // CHECK: warn_unused_result
  14 #if __has_attribute(warn_unused_result)
  15 int warn_unused_result();
  16 #endif
  17
  18 // CHECK: no_dummy_attribute
  19 #if !__has_attribute(dummy_attribute)
  20 int no_dummy_attribute();
  21 #endif
  22
  23 // CHECK: has_has_attribute
  24 #ifdef __has_attribute
  25 int has_has_attribute();
  26 #endif
  27
  28 // CHECK: has_something_we_dont_have
  29 #if !__has_attribute(something_we_dont_have)
  30 int has_something_we_dont_have();
  31 #endif
  32
  33 #if __has_attribute(__const)
  34  int fn3() __attribute__ ((__const));
  35 #endif
  36
  37 #if __has_attribute(const)
  38  static int constFunction() __attribute__((const));
  39 #endif
  40
  41 // CHECK: has_no_volatile_attribute
  42 #if !__has_attribute(volatile)
  43 int has_no_volatile_attribute();
  44 #endif
  45
  46 // CHECK: has_arm_interrupt
  47 #if __has_attribute(interrupt)
  48   int has_arm_interrupt();
  49 #endif
  50
  51 // CHECK: does_not_have_dllexport
  52 #if !__has_attribute(dllexport)
  53   int does_not_have_dllexport();
  54 #endif
  55
  56 // CHECK: does_not_have_uuid
  57 #if !__has_attribute(uuid)
  58   int does_not_have_uuid
  59 #endif
  60
  61 #if __has_cpp_attribute(selectany) // expected-error {{function-like macro '__has_cpp_attribute' is not defined}}
  62 #endif
  63
  64 // Test that macro expansion of the builtin argument works.
  65 #define F fallthrough
  66
  67 #if __has_attribute(F)
  68 int has_fallthrough;
  69 #endif
  70 // CHECK: int has_fallthrough;