clang/test/Sema/attr-deprecated.c

   1 // RUN: %clang_cc1 %s -verify -fsyntax-only
   2 // RUN: %clang_cc1 %s -std=c89 -verify -fsyntax-only
   3 // RUN: %clang_cc1 %s -std=c99 -verify -fsyntax-only
   4
   5 int f(void) __attribute__((deprecated)); // expected-note 2 {{'f' has been explicitly marked deprecated here}}
   6 void g(void) __attribute__((deprecated));// expected-note {{'g' has been explicitly marked deprecated here}}
   7 void g(void);
   8
   9 extern int var __attribute__((deprecated)); // expected-note 2 {{'var' has been explicitly marked deprecated here}}
  10
  11 int a(void) {
  12   int (*ptr)(void) = f; // expected-warning {{'f' is deprecated}}
  13   f(); // expected-warning {{'f' is deprecated}}
  14
  15   // test if attributes propagate to functions
  16   g(); // expected-warning {{'g' is deprecated}}
  17
  18   return var; // expected-warning {{'var' is deprecated}}
  19 }
  20
  21 // test if attributes propagate to variables
  22 extern int var;
  23 int w(void) {
  24   return var; // expected-warning {{'var' is deprecated}}
  25 }
  26
  27 int old_fn(void) __attribute__ ((deprecated));// expected-note {{'old_fn' has been explicitly marked deprecated here}}
  28 int old_fn(void);
  29 int (*fn_ptr)(void) = old_fn; // expected-warning {{'old_fn' is deprecated}}
  30
  31 int old_fn(void) {
  32   return old_fn()+1;  // no warning, deprecated functions can use deprecated symbols.
  33 }
  34
  35
  36 struct foo {
  37   int x __attribute__((deprecated)); // expected-note 3 {{'x' has been explicitly marked deprecated here}}
  38 };
  39
  40 void test1(struct foo *F) {
  41   ++F->x;  // expected-warning {{'x' is deprecated}}
  42   struct foo f1 = { .x = 17 }; // expected-warning {{'x' is deprecated}}
  43   struct foo f2 = { 17 }; // expected-warning {{'x' is deprecated}}
  44 }
  45
  46 typedef struct foo foo_dep __attribute__((deprecated)); // expected-note 12 {{'foo_dep' has been explicitly marked deprecated here}}
  47 foo_dep *test2;    // expected-warning {{'foo_dep' is deprecated}}
  48
  49 struct __attribute__((deprecated, // expected-note 2 {{'bar_dep' has been explicitly marked deprecated here}}
  50                       invalid_attribute)) bar_dep ;  // expected-warning {{unknown attribute 'invalid_attribute' ignored}}
  51
  52 struct bar_dep *test3;   // expected-warning {{'bar_dep' is deprecated}}
  53
  54
  55 // These should not warn because the actually declaration itself is deprecated.
  56 foo_dep *test4 __attribute__((deprecated));
  57 struct bar_dep *test5 __attribute__((deprecated));
  58
  59 typedef foo_dep test6(struct bar_dep*); // expected-warning {{'foo_dep' is deprecated}} \
  60                                         // expected-warning {{'bar_dep' is deprecated}}
  61 typedef foo_dep test7(struct bar_dep*) __attribute__((deprecated));
  62
  63 int test8(char *p) {
  64   p += sizeof(foo_dep); // expected-warning {{'foo_dep' is deprecated}}
  65
  66   foo_dep *ptr;         // expected-warning {{'foo_dep' is deprecated}}
  67   ptr = (foo_dep*) p;   // expected-warning {{'foo_dep' is deprecated}}
  68
  69   int func(foo_dep *foo); // expected-warning {{'foo_dep' is deprecated}}
  70   return func(ptr);
  71 }
  72
  73 foo_dep *test9(void) __attribute__((deprecated));
  74 foo_dep *test9(void) {
  75   void* myalloc(unsigned long);
  76
  77   foo_dep *ptr
  78     = (foo_dep*)
  79         myalloc(sizeof(foo_dep));
  80   return ptr;
  81 }
  82
  83 void test10(void) __attribute__((deprecated));
  84 void test10(void) {
  85   if (sizeof(foo_dep) == sizeof(void*)) {
  86   }
  87   foo_dep *localfunc(void);
  88   foo_dep localvar;
  89 }
  90
  91 char test11[sizeof(foo_dep)] __attribute__((deprecated));
  92 char test12[sizeof(foo_dep)]; // expected-warning {{'foo_dep' is deprecated}}
  93
  94 int test13(foo_dep *foo) __attribute__((deprecated));
  95 int test14(foo_dep *foo); // expected-warning {{'foo_dep' is deprecated}}
  96
  97 unsigned long test15 = sizeof(foo_dep); // expected-warning {{'foo_dep' is deprecated}}
  98 unsigned long test16 __attribute__((deprecated))
  99   = sizeof(foo_dep);
 100
 101 foo_dep test17, // expected-warning {{'foo_dep' is deprecated}}
 102         test18 __attribute__((deprecated)),
 103         test19;
 104
 105 enum __attribute__((deprecated)) Test20 { // expected-note 2 {{'Test20' has been explicitly marked deprecated here}}
 106   test20_a __attribute__((deprecated)), // expected-note {{'test20_a' has been explicitly marked deprecated here}}
 107   test20_b
 108 };
 109 void test20(void) {
 110   enum Test20 f; // expected-warning {{'Test20' is deprecated}}
 111   f = test20_a; // expected-warning {{'test20_a' is deprecated}}
 112   f = test20_b; // expected-warning {{'test20_b' is deprecated}}
 113 }
 114
 115 char test21[__has_feature(attribute_deprecated_with_message) ? 1 : -1];
 116
 117 struct test22 {
 118   foo_dep a __attribute((deprecated));
 119   foo_dep b; // expected-warning {{'foo_dep' is deprecated}}
 120   foo_dep c, d __attribute((deprecated)); // expected-warning {{'foo_dep' is deprecated}}
 121   __attribute((deprecated)) foo_dep e, f;
 122 };
 123
 124 typedef int test23_ty __attribute((deprecated));
 125 // Redefining a typedef is a C11 feature.
 126 #if __STDC_VERSION__ <= 199901L
 127 // expected-note@-3 {{'test23_ty' has been explicitly marked deprecated here}}
 128 #else
 129 // expected-note@-5 {{'test23_ty' has been explicitly marked deprecated here}}
 130 typedef int test23_ty;
 131 #endif
 132 test23_ty test23_v; // expected-warning {{'test23_ty' is deprecated}}