gcc/testsuite/gcc.dg/c11-thread-local-2.c

   1 /* Test for _Thread_local in C11.  Test of invalid code.  */
   2 /* { dg-do compile } */
   3 /* { dg-options "-std=c11 -pedantic-errors" } */
   4
   5 _Thread_local void f (void); /* { dg-error "storage class" } */
   6 _Thread_local void g (void) {} /* { dg-error "_Thread_local" } */
   7 typedef _Thread_local int t1; /* { dg-error "_Thread_local" } */
   8 _Thread_local typedef int t2; /* { dg-error "_Thread_local" } */
   9
  10 void
  11 h (void)
  12 {
  13   _Thread_local auto int a; /* { dg-error "_Thread_local" } */
  14   _Thread_local register int b; /* { dg-error "_Thread_local" } */
  15   auto _Thread_local int c; /* { dg-error "_Thread_local" } */
  16   register _Thread_local int d; /* { dg-error "_Thread_local" } */
  17   _Thread_local int e; /* { dg-error "_Thread_local" } */
  18 }
  19
  20 _Thread_local int v; /* { dg-message "previous" } */
  21 extern int v; /* { dg-error "thread" } */
  22 int w; /* { dg-message "previous" } */
  23 extern _Thread_local int w; /* { dg-error "thread" } */
  24
  25 _Thread_local int x; /* { dg-message "previous" } */
  26 int y; /* { dg-message "previous" } */
  27
  28 int vv;
  29
  30 void
  31 i (void)
  32 {
  33   extern int x; /* { dg-error "thread" } */
  34   extern _Thread_local int y; /* { dg-error "thread" } */
  35   static _Thread_local int a[vv]; /* { dg-error "storage size" } */
  36   static _Thread_local int vi = vv; /* { dg-error "not constant" } */
  37 }
  38
  39 static _Thread_local int sv;
  40
  41 inline void
  42 j (void)
  43 {
  44   static _Thread_local int vj; /* { dg-error "static but declared" } */
  45   (void) sv; /* { dg-error "static but used in inline" } */
  46 }