gcc/testsuite/gcc.dg/has-feature.c

   1 /* { dg-do compile } */
   2 /* { dg-options "" } */
   3 /* Test __has_{feature,extension} for C language features.  */
   4
   5 #if !__has_extension (c_alignas) || !__has_extension (c_alignof)
   6 #error
   7 #endif
   8
   9 #if !__has_extension (c_atomic) || !__has_extension (c_generic_selections)
  10 #error
  11 #endif
  12
  13 #if !__has_extension (c_static_assert) || !__has_extension (c_thread_local)
  14 #error
  15 #endif
  16
  17 #if !__has_extension (cxx_binary_literals)
  18 #error
  19 #endif
  20
  21 #if  __STDC_VERSION__ >= 201112L
  22 /* Have C11 features.  */
  23 #if !__has_feature (c_alignas) || !__has_feature (c_alignof)
  24 #error
  25 #endif
  26
  27 #if !__has_feature (c_atomic) || !__has_feature (c_generic_selections)
  28 #error
  29 #endif
  30
  31 #if !__has_feature (c_static_assert) || !__has_feature (c_thread_local)
  32 #error
  33 #endif
  34
  35 #else
  36 /* Don't have C11 features.  */
  37 #if __has_feature (c_alignas) || __has_feature (c_alignof)
  38 #error
  39 #endif
  40
  41 #if __has_feature (c_atomic) || __has_feature (c_generic_selections)
  42 #error
  43 #endif
  44
  45 #if __has_feature (c_static_assert) || __has_feature (c_thread_local)
  46 #error
  47 #endif
  48
  49 #endif
  50
  51 #if __STDC_VERSION__ >= 202000L
  52 /* Have C2x features.  */
  53 #if !__has_feature (cxx_binary_literals)
  54 #error
  55 #endif
  56
  57 #else
  58 /* Don't have C2x features.  */
  59 #if __has_feature (cxx_binary_literals)
  60 #error
  61 #endif
  62 #endif