llvm-project/clang/test/Parser/declarators.c

// RUN: %clang_cc1 %s -fsyntax-only -verify -pedantic

extern int a1[];

void f0();
void f1(int [*]);
void f2(int [const *]);
void f3(int [volatile const*]);
int f4(*XX)(void); /* expected-error {{cannot return}} expected-warning {{type specifier missing, defaults to 'int'}} */

char ((((*X))));

void (*signal(int, void (*)(int)))(int);

int aaaa, ***C, * const D, B(int);

int *A;

struct str;

void test2(int *P, int A) {
  struct str;

  // Hard case for array decl, not Array[*].
  int Array[*(int*)P+A];
}

typedef int atype;
void test3(x, 
           atype         /* expected-error {{unexpected type name 'atype': expected identifier}} */
          ) int x, atype; {}

void test4(x, x) int x; {} /* expected-error {{redefinition of parameter 'x'}} */


// PR3031
int (test5), ;  // expected-error {{expected identifier or '('}}



// PR3963 & rdar://6759604 - test error recovery for mistyped "typenames".

foo_t *d;      // expected-error {{unknown type name 'foo_t'}}
foo_t a;   // expected-error {{unknown type name 'foo_t'}}
int test6() { return a; }  // a should be declared.

// Use of tagged type without tag. rdar://6783347
struct xyz { int y; };
enum myenum { ASDFAS };
xyz b;         // expected-error {{must use 'struct' tag to refer to type 'xyz'}}
myenum c;      // expected-error {{must use 'enum' tag to refer to type 'myenum'}}

float *test7() {
  // We should recover 'b' by parsing it with a valid type of "struct xyz", which
  // allows us to diagnose other bad things done with y, such as this.
  return &b.y;   // expected-warning {{incompatible pointer types returning 'int *' from a function with result type 'float *'}}
}

struct xyz test8() { return a; }  // a should be be marked invalid, no diag.


// Verify that implicit int still works.
static f;      // expected-warning {{type specifier missing, defaults to 'int'}}
static g = 4;  // expected-warning {{type specifier missing, defaults to 'int'}}
static h        // expected-warning {{type specifier missing, defaults to 'int'}} 
      __asm__("foo");


struct test9 {
  int x  // expected-error {{expected ';' at end of declaration list}}
  int y;
  int z  // expected-warning {{expected ';' at end of declaration list}}
};

// PR6208
struct test10 { int a; } static test10x;
struct test11 { int a; } const test11x;

// PR6216
void test12() {
  (void)__builtin_offsetof(struct { char c; int i; }, i);
}

// rdar://7608537
struct test13 { int a; } (test13x);

// <rdar://problem/8044088>
struct X<foo::int> { }; // expected-error{{expected identifier or '('}}


// PR7617 - error recovery on missing ;.

void test14()  // expected-error {{expected ';' after top level declarator}}

void test14a();
void *test14b = (void*)test14a; // Make sure test14a didn't get skipped.

// rdar://problem/8358508
long struct X { int x; } test15(); // expected-error {{'long struct' is invalid}}