clang/test/Parser/declarators.c

   1 // RUN: %clang_cc1 %s -fsyntax-only -verify -pedantic
   2
   3 extern int a1[];
   4
   5 void f0();
   6 void f1(int [*]);
   7 void f2(int [const *]);
   8 void f3(int [volatile const*]);
   9 int f4(*XX)(void); /* expected-error {{cannot return}} expected-warning {{type specifier missing, defaults to 'int'}} */
  10 int f5(int [static]); /* expected-error {{'static' may not be used without an array size}} */
  11
  12 char ((((*X))));
  13
  14 void (*signal(int, void (*)(int)))(int);
  15
  16 int aaaa, ***C, * const D, B(int);
  17
  18 int *A;
  19
  20 struct str;
  21
  22 void test2(int *P, int A) {
  23   struct str;
  24
  25   // Hard case for array decl, not Array[*].
  26   int Array[*(int*)P+A];
  27 }
  28
  29 typedef int atype;
  30 void test3(x,
  31            atype         /* expected-error {{unexpected type name 'atype': expected identifier}} */
  32           ) int x, atype; {}
  33
  34 void test4(x, x) int x; {} /* expected-error {{redefinition of parameter 'x'}} */
  35
  36
  37 // PR3031
  38 int (test5), ;  // expected-error {{expected identifier or '('}}
  39
  40
  41
  42 // PR3963 & rdar://6759604 - test error recovery for mistyped "typenames".
  43
  44 foo_t *d;      // expected-error {{unknown type name 'foo_t'}}
  45 foo_t a;   // expected-error {{unknown type name 'foo_t'}}
  46 int test6() { return a; }  // a should be declared.
  47
  48 // Use of tagged type without tag. rdar://6783347
  49 struct xyz { int y; };
  50 enum myenum { ASDFAS };
  51 xyz b;         // expected-error {{must use 'struct' tag to refer to type 'xyz'}}
  52 myenum c;      // expected-error {{must use 'enum' tag to refer to type 'myenum'}}
  53
  54 float *test7() {
  55   // We should recover 'b' by parsing it with a valid type of "struct xyz", which
  56   // allows us to diagnose other bad things done with y, such as this.
  57   return &b.y;   // expected-warning {{incompatible pointer types returning 'int *' from a function with result type 'float *'}}
  58 }
  59
  60 struct xyz test8() { return a; }  // a should be be marked invalid, no diag.
  61
  62
  63 // Verify that implicit int still works.
  64 static f;      // expected-warning {{type specifier missing, defaults to 'int'}}
  65 static g = 4;  // expected-warning {{type specifier missing, defaults to 'int'}}
  66 static h        // expected-warning {{type specifier missing, defaults to 'int'}}
  67       __asm__("foo");
  68
  69
  70 struct test9 {
  71   int x  // expected-error {{expected ';' at end of declaration list}}
  72   int y;
  73   int z  // expected-warning {{expected ';' at end of declaration list}}
  74 };
  75
  76 // PR6208
  77 struct test10 { int a; } static test10x;
  78 struct test11 { int a; } const test11x;
  79
  80 // PR6216
  81 void test12() {
  82   (void)__builtin_offsetof(struct { char c; int i; }, i);
  83 }
  84
  85 // rdar://7608537
  86 struct test13 { int a; } (test13x);
  87
  88 // <rdar://problem/8044088>
  89 struct X<foo::int> { }; // expected-error{{expected identifier or '('}}
  90
  91
  92 // PR7617 - error recovery on missing ;.
  93
  94 void test14()  // expected-error {{expected ';' after top level declarator}}
  95
  96 void test14a();
  97 void *test14b = (void*)test14a; // Make sure test14a didn't get skipped.
  98
  99 // rdar://problem/8358508
 100 long struct X { int x; } test15(); // expected-error {{'long struct' is invalid}}
 101
 102 void test16(i) int i j; { } // expected-error {{expected ';' at end of declaration}}
 103 void test17(i, j) int i, j k; { } // expected-error {{expected ';' at end of declaration}}
 104 void knrNoSemi(i) int i { } // expected-error {{expected ';' at end of declaration}}
 105
 106
 107 // PR12595
 108 void test18() {
 109   int x = 4+(5-12));  // expected-error {{extraneous ')' before ';'}}
 110 }
 111
 112 enum E1 { e1 }: // expected-error {{expected ';'}}
 113 struct EnumBitfield { // expected-warning {{struct without named members is a GNU extension}}
 114   enum E2 { e2 } : 4; // ok
 115   struct S { int n; }: // expected-error {{expected ';'}}
 116                        // expected-warning@-1 {{declaration does not declare anything}}
 117
 118 };
 119
 120 // PR10982
 121 enum E11 {
 122   A1 = 1,
 123 };
 124
 125 enum E12 {
 126   ,  // expected-error{{expected identifier}}
 127   A2
 128 };
 129 void func_E12(enum E12 *p) { *p = A2; }
 130
 131 enum E13 {
 132   1D,  // expected-error{{expected identifier}}
 133   A3
 134 };
 135 void func_E13(enum E13 *p) { *p = A3; }
 136
 137 enum E14 {
 138   A4 12,  // expected-error{{expected '= constant-expression' or end of enumerator definition}}
 139   A4a
 140 };
 141 void func_E14(enum E14 *p) { *p = A4a; }
 142
 143 enum E15 {
 144   A5=12 4,  // expected-error{{expected '}' or ','}}
 145   A5a
 146 };
 147 void func_E15(enum E15 *p) { *p = A5a; }
 148
 149 enum E16 {
 150   A6;  // expected-error{{expected '= constant-expression' or end of enumerator definition}}
 151   A6a
 152 };
 153
 154 int PR20634 = sizeof(struct { int n; } [5]);