test/Sema/attr-deprecated.c

   1 // RUN: %clang_cc1 %s -verify -fsyntax-only
   2
   3 int f() __attribute__((deprecated));
   4 void g() __attribute__((deprecated));
   5 void g();
   6
   7 extern int var __attribute__((deprecated));
   8
   9 int a() {
  10   int (*ptr)() = f; // expected-warning {{'f' is deprecated}}
  11   f(); // expected-warning {{'f' is deprecated}}
  12
  13   // test if attributes propagate to functions
  14   g(); // expected-warning {{'g' is deprecated}}
  15
  16   return var; // expected-warning {{'var' is deprecated}}
  17 }
  18
  19 // test if attributes propagate to variables
  20 extern int var;
  21 int w() {
  22   return var; // expected-warning {{'var' is deprecated}}
  23 }
  24
  25 int old_fn() __attribute__ ((deprecated));
  26 int old_fn();
  27 int (*fn_ptr)() = old_fn; // expected-warning {{'old_fn' is deprecated}}
  28
  29 int old_fn() {
  30   return old_fn()+1;  // no warning, deprecated functions can use deprecated symbols.
  31 }
  32
  33
  34 struct foo {
  35   int x __attribute__((deprecated));
  36 };
  37
  38 void test1(struct foo *F) {
  39   ++F->x;  // expected-warning {{'x' is deprecated}}
  40 }
  41
  42 typedef struct foo foo_dep __attribute__((deprecated));
  43 foo_dep *test2;    // expected-warning {{'foo_dep' is deprecated}}
  44
  45 struct bar_dep __attribute__((deprecated,
  46                               invalid_attribute));  // expected-warning {{unknown attribute 'invalid_attribute' ignored}}
  47
  48 struct bar_dep *test3;   // expected-warning {{'bar_dep' is deprecated}}
  49
  50
  51 // These should not warn because the actually declaration itself is deprecated.
  52 // rdar://6756623
  53 foo_dep *test4 __attribute__((deprecated));
  54 struct bar_dep *test5 __attribute__((deprecated));
  55
  56 typedef foo_dep test6(struct bar_dep*); // expected-warning {{'foo_dep' is deprecated}} \
  57                                         // expected-warning {{'bar_dep' is deprecated}}
  58 typedef foo_dep test7(struct bar_dep*) __attribute__((deprecated));
  59
  60 int test8(char *p) {
  61   p += sizeof(foo_dep); // expected-warning {{'foo_dep' is deprecated}}
  62
  63   foo_dep *ptr;         // expected-warning {{'foo_dep' is deprecated}}
  64   ptr = (foo_dep*) p;   // expected-warning {{'foo_dep' is deprecated}}
  65
  66   int func(foo_dep *foo); // expected-warning {{'foo_dep' is deprecated}}
  67   return func(ptr);
  68 }
  69
  70 foo_dep *test9(void) __attribute__((deprecated));
  71 foo_dep *test9(void) {
  72   void* myalloc(unsigned long);
  73
  74   foo_dep *ptr
  75     = (foo_dep*)
  76         myalloc(sizeof(foo_dep));
  77   return ptr;
  78 }
  79
  80 void test10(void) __attribute__((deprecated));
  81 void test10(void) {
  82   if (sizeof(foo_dep) == sizeof(void*)) {
  83   }
  84   foo_dep *localfunc(void);
  85   foo_dep localvar;
  86 }
  87
  88 char test11[sizeof(foo_dep)] __attribute__((deprecated));
  89 char test12[sizeof(foo_dep)]; // expected-warning {{'foo_dep' is deprecated}}
  90
  91 int test13(foo_dep *foo) __attribute__((deprecated));
  92 int test14(foo_dep *foo); // expected-warning {{'foo_dep' is deprecated}}
  93
  94 unsigned long test15 = sizeof(foo_dep); // expected-warning {{'foo_dep' is deprecated}}
  95 unsigned long test16 __attribute__((deprecated))
  96   = sizeof(foo_dep);
  97
  98 foo_dep test17, // expected-warning {{'foo_dep' is deprecated}}
  99         test18 __attribute__((deprecated)),
 100         test19;
 101
 102 // rdar://problem/8518751
 103 enum __attribute__((deprecated)) Test20 {
 104   test20_a __attribute__((deprecated)),
 105   test20_b
 106 };
 107 void test20() {
 108   enum Test20 f; // expected-warning {{'Test20' is deprecated}}
 109   f = test20_a; // expected-warning {{'test20_a' is deprecated}}
 110   f = test20_b;
 111 }
 112
 113 char test21[__has_feature(attribute_deprecated_with_message) ? 1 : -1];