gcc/testsuite/gcc.dg/declspec-10.c

   1 /* Test declaration specifiers.  Test various checks on storage class
   2    and function specifiers that depend on information about the
   3    declaration, not just the specifiers.  Test with -pedantic.  */
   4 /* Origin: Joseph Myers <jsm@polyomino.org.uk> */
   5 /* { dg-do compile } */
   6 /* { dg-options "-pedantic" } */
   7
   8 auto void f0 (void) {} /* { dg-warning "warning: function definition declared 'auto'" } */
   9 register void f1 (void) {} /* { dg-error "error: function definition declared 'register'" } */
  10 typedef void f2 (void) {} /* { dg-error "error: function definition declared 'typedef'" } */
  11
  12 void f3 (auto int); /* { dg-error "error: storage class specified for parameter 'type name'" } */
  13 void f4 (extern int); /* { dg-error "error: storage class specified for parameter 'type name'" } */
  14 void f5 (register int);
  15 void f6 (static int); /* { dg-error "error: storage class specified for parameter 'type name'" } */
  16 void f7 (typedef int); /* { dg-error "error: storage class specified for parameter 'type name'" } */
  17
  18 auto int x; /* { dg-error "error: file-scope declaration of 'x' specifies 'auto'" } */
  19 register int y; /* { dg-warning "warning: file-scope declaration of 'y' specifies 'register'" } */
  20
  21 void h (void) { extern void x (void) {} } /* { dg-error "error: nested function 'x' declared 'extern'" } */
  22 /* { dg-warning "warning: ISO C forbids nested functions" "nested" { target *-*-* } 21 } */
  23
  24 void
  25 g (void)
  26 {
  27   void a; /* { dg-error "error: variable or field 'a' declared void" } */
  28   const void b; /* { dg-error "error: variable or field 'b' declared void" } */
  29   static void c; /* { dg-error "error: variable or field 'c' declared void" } */
  30 }
  31
  32 void p;
  33 const void p1;
  34 extern void q;
  35 extern const void q1;
  36 static void r; /* { dg-error "error: variable or field 'r' declared void" } */
  37 static const void r1; /* { dg-error "error: variable or field 'r1' declared void" } */
  38
  39 register void f8 (void); /* { dg-error "error: invalid storage class for function 'f8'" } */
  40 /* { dg-warning "warning: file-scope declaration of 'f8' specifies 'register'" "register function" { target *-*-* } 39 } */
  41
  42 void i (void) { auto void y (void) {} } /* { dg-warning "warning: ISO C forbids nested functions" } */
  43 /* { dg-warning "warning: function definition declared 'auto'" "nested" { target *-*-* } 42 } */
  44
  45 inline int main (void) { return 0; } /* { dg-warning "warning: cannot inline function 'main'" } */