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int;
char;
struct {int x;};
/* useless declarations are ok */
int a(int a);
int a(int d);
/* duplicate function declarations are ok */
struct A {int x; int y;} b;
/* struct definitions in parameters is in a local scope
* subsequent parameter can make use of previous defined struct */
int foo(struct A {int x;} a, struct A b) {
/* function declaration in local scope is ok */
int f(char *x);
/* A is defined in parameters */
struct A c;
c.x = 43;
}
void bar() {
/* struct definition is ok inside a function */
struct A {int x;};
struct A a;
a.x = 1;
{
/* the following `A' is different from previous one */
struct A {int y;};
struct A b;
b.y = 2;
}
}
struct C c;
struct C {
struct D {
int x, y;
} b;
int c;
struct D d;
};
struct D d; /* feasible here */
void nonsense() {
char q;
(void)q;
return "yay";
}
int assign() {
int *a;
struct {int *x;} b;
a = b.x;
}
void incomplete() {
struct E {struct F *f;} e;
}
void delay() {
struct G *g;
struct G {int x; };
g->x = 1;
}
void comma() {
int a;
int *b;
(b++, a++) * 3;
}
int complex_pointer() {
int (*g(int ***e[10]))();
}
int fp(int a, int b, int c) {
int (*f)(int a, int b, int c);
f = ****fp + 1;
(****f)(1, 2, 3);
f = &fp + 1;
}
int fc(int fc()) {
fc(complex_pointer);
}
int incomp(struct I a);
void (*bsd_signal(int sig, void (*func)(int a)))(int b);
void array() {
int a[(1 + 1 == 2) * 2];
}
void local_decl() {
int y = y;
{
int x = x;
int a;
int b = a = 2;
}
}
struct Node n;
struct Node {int x, y;} n;
/* global forward declaration is ok */
int again;
int again;
typedef int def;
int typedef1() {
int def; /* overrides outer typedef */
def = 1;
}
typedef int *ptr1;
int typedef2() {
typedef int **ptr2;
{
typedef int ***ptr3;
ptr3 ptr2;
ptr3 ptr1;
}
}
int main() {
n.x = 1;
n.y = 2;
}
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