gcc/testsuite/gcc.dg/c2x-has-c-attribute-1.c

   1 /* Test __has_c_attribute.  Test basic properties.  */
   2 /* { dg-do preprocess } */
   3 /* { dg-options "-std=c2x -pedantic-errors" } */
   4
   5 #ifdef __has_c_attribute
   6 /* OK.  */
   7 #else
   8 #error "__has_c_attribute not defined"
   9 #endif
  10
  11 #ifndef __has_c_attribute
  12 #error "__has_c_attribute not defined"
  13 #endif
  14
  15 #if defined __has_c_attribute
  16 /* OK.  */
  17 #else
  18 #error "__has_c_attribute not defined"
  19 #endif
  20
  21 #if __has_c_attribute(foo)
  22 #error "foo attribute supported"
  23 #endif
  24
  25 #if 0
  26 #elif __has_c_attribute(foo)
  27 #error "foo attribute supported"
  28 #endif