File: incomplete-decl.c

package info (click to toggle)
llvm-toolchain-19 1%3A19.1.7-3
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,998,520 kB
  • sloc: cpp: 6,951,680; ansic: 1,486,157; asm: 913,598; python: 232,024; f90: 80,126; objc: 75,281; lisp: 37,276; pascal: 16,990; sh: 10,009; ml: 5,058; perl: 4,724; awk: 3,523; makefile: 3,167; javascript: 2,504; xml: 892; fortran: 664; cs: 573
file content (51 lines) | stat: -rw-r--r-- 2,578 bytes parent folder | download | duplicates (8)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
// RUN: %clang_cc1 -fsyntax-only -verify=c,expected %s
// RUN: %clang_cc1 -x c++ -fsyntax-only -verify=cxx,expected %s



struct foo; // c-note 5 {{forward declaration of 'struct foo'}} \
               cxx-note 3 {{forward declaration of 'foo'}}

void b;  // expected-error {{variable has incomplete type 'void'}}
struct foo f; // c-error {{tentative definition has type 'struct foo' that is never completed}} \
                 cxx-error {{variable has incomplete type 'struct foo'}}

static void c; // expected-error {{variable has incomplete type 'void'}}
static struct foo g;  // c-warning {{tentative definition of variable with internal linkage has incomplete non-array type 'struct foo'}} \
                         c-error {{tentative definition has type 'struct foo' that is never completed}} \
                         cxx-error {{variable has incomplete type 'struct foo'}}

extern void d; // cxx-error {{variable has incomplete type 'void'}}
extern struct foo e;

int ary[]; // c-warning {{tentative array definition assumed to have one element}} \
              cxx-error {{definition of variable with array type needs an explicit size or an initializer}}
struct foo bary[]; // c-error {{array has incomplete element type 'struct foo'}} \
                      cxx-error {{definition of variable with array type needs an explicit size or an initializer}}

void func(void) {
  int ary[]; // expected-error {{definition of variable with array type needs an explicit size or an initializer}}
  void b; // expected-error {{variable has incomplete type 'void'}}
  struct foo f; // expected-error {{variable has incomplete type 'struct foo'}}
}

int h[]; // c-warning {{tentative array definition assumed to have one element}} \
            cxx-error {{definition of variable with array type needs an explicit size or an initializer}}
int (*i)[] = &h+1; // c-error {{arithmetic on a pointer to an incomplete type 'int[]'}}

struct bar j = {1}; // expected-error {{variable has incomplete type 'struct bar'}} \
                       c-note {{forward declaration of 'struct bar'}} \
                       cxx-note 2 {{forward declaration of 'bar'}}

struct bar k; // cxx-error {{variable has incomplete type 'struct bar'}}
struct bar { int a; };

struct x y; //c-note 2 {{forward declaration of 'struct x'}} \
              cxx-error {{variable has incomplete type 'struct x'}} \
              cxx-note {{forward declaration of 'x'}}
void foo() {
  (void)(1 ? y : y); // c-error 2 {{incomplete type 'struct x' where a complete type is required}}
}
struct x{
  int a;
};