gcc/testsuite/gcc.dg/c2x-attr-syntax-5.c

   1 /* Test C2x attribute syntax.  Test unknown standard attributes
   2    diagnosed with a pedwarn.  */
   3 /* { dg-do compile } */
   4 /* { dg-options "-std=c2x -pedantic-errors" } */
   5
   6 [[unknown_attribute]]; /* { dg-error "attribute ignored" } */
   7
   8 [[unknown_attribute]] extern int a; /* { dg-error "attribute ignored" } */
   9 extern int [[unknown_attribute(123)]] a; /* { dg-error "attribute ignored" } */
  10 extern int a [[unknown_attribute("")]]; /* { dg-error "attribute ignored" } */
  11
  12 int f () [[unknown_attribute]]; /* { dg-error "attribute ignored" } */
  13 int f (void) [[unknown_attribute(1)]]; /* { dg-error "attribute ignored" } */
  14 int g ([[unknown_attribute]] int a); /* { dg-error "attribute ignored" } */
  15 int g (int [[unknown_attribute]] a); /* { dg-error "attribute ignored" } */
  16 int g (int a [[unknown_attribute]]); /* { dg-error "attribute ignored" } */
  17 int g ([[unknown_attribute]] int); /* { dg-error "attribute ignored" } */
  18 int g (int [[unknown_attribute]]); /* { dg-error "attribute ignored" } */
  19 int g (int) [[unknown_attribute]]; /* { dg-error "attribute ignored" } */
  20
  21 int *[[unknown_attribute]] p; /* { dg-error "attribute ignored" } */
  22 int b[3] [[unknown_attribute]]; /* { dg-error "attribute ignored" } */
  23
  24 int h (int () [[unknown_attribute]]); /* { dg-error "attribute ignored" } */
  25
  26 struct [[unknown_attribute]] s; /* { dg-error "attribute ignored" } */
  27 union [[unknown_attribute]] u; /* { dg-error "attribute ignored" } */
  28
  29 struct [[unknown_attribute]] s2 { int a; }; /* { dg-error "attribute ignored" } */
  30 union [[unknown_attribute(x)]] u2 { int a; }; /* { dg-error "attribute ignored" } */
  31
  32 struct s3 { [[unknown_attribute]] int a; }; /* { dg-error "attribute ignored" } */
  33 struct s4 { int [[unknown_attribute]] a; }; /* { dg-error "attribute ignored" } */
  34 union u3 { [[unknown_attribute]] int a; }; /* { dg-error "attribute ignored" } */
  35 union u4 { int [[unknown_attribute]] a; }; /* { dg-error "attribute ignored" } */
  36
  37 int z = sizeof (int [[unknown_attribute]]); /* { dg-error "attribute ignored" } */
  38
  39 enum [[unknown_attribute]] { E1 }; /* { dg-error "attribute ignored" } */
  40 enum { E2 [[unknown_attribute]] }; /* { dg-error "attribute ignored" } */
  41 enum { E3 [[unknown_attribute]] = 4 }; /* { dg-error "attribute ignored" } */
  42
  43 void
  44 func (void) [[unknown_attribute]] { /* { dg-error "attribute ignored" } */
  45   [[unknown_attribute]] int var; /* { dg-error "attribute ignored" } */
  46   [[unknown_attribute]] { } /* { dg-error "attribute ignored" } */
  47   [[unknown_attribute(!)]]; /* { dg-error "attribute ignored" } */
  48   [[unknown_attribute]] var = 1; /* { dg-error "attribute ignored" } */
  49   [[unknown_attribute]] x: var = 2; /* { dg-error "attribute ignored" } */
  50   for ([[unknown_attribute]] int zz = 1; zz < 10; zz++) ; /* { dg-error "attribute ignored" } */
  51 }