src/test/ui/lint/function-references.stderr

   1 warning: cast `foo` with `as fn() -> _` to obtain a function pointer
   2   --> $DIR/function-references.rs:57:22
   3    |
   4 LL |     println!("{:p}", &foo);
   5    |                      ^^^^
   6    |
   7 note: the lint level is defined here
   8   --> $DIR/function-references.rs:3:9
   9    |
  10 LL | #![warn(function_item_references)]
  11    |         ^^^^^^^^^^^^^^^^^^^^^^^^
  12
  13 warning: cast `foo` with `as fn() -> _` to obtain a function pointer
  14   --> $DIR/function-references.rs:59:20
  15    |
  16 LL |     print!("{:p}", &foo);
  17    |                    ^^^^
  18
  19 warning: cast `foo` with `as fn() -> _` to obtain a function pointer
  20   --> $DIR/function-references.rs:61:21
  21    |
  22 LL |     format!("{:p}", &foo);
  23    |                     ^^^^
  24
  25 warning: cast `foo` with `as fn() -> _` to obtain a function pointer
  26   --> $DIR/function-references.rs:64:22
  27    |
  28 LL |     println!("{:p}", &foo as *const _);
  29    |                      ^^^^^^^^^^^^^^^^
  30
  31 warning: cast `foo` with `as fn() -> _` to obtain a function pointer
  32   --> $DIR/function-references.rs:66:22
  33    |
  34 LL |     println!("{:p}", zst_ref);
  35    |                      ^^^^^^^
  36
  37 warning: cast `foo` with `as fn() -> _` to obtain a function pointer
  38   --> $DIR/function-references.rs:68:22
  39    |
  40 LL |     println!("{:p}", cast_zst_ptr);
  41    |                      ^^^^^^^^^^^^
  42
  43 warning: cast `foo` with `as fn() -> _` to obtain a function pointer
  44   --> $DIR/function-references.rs:70:22
  45    |
  46 LL |     println!("{:p}", coerced_zst_ptr);
  47    |                      ^^^^^^^^^^^^^^^
  48
  49 warning: cast `foo` with `as fn() -> _` to obtain a function pointer
  50   --> $DIR/function-references.rs:73:22
  51    |
  52 LL |     println!("{:p}", &fn_item);
  53    |                      ^^^^^^^^
  54
  55 warning: cast `foo` with `as fn() -> _` to obtain a function pointer
  56   --> $DIR/function-references.rs:75:22
  57    |
  58 LL |     println!("{:p}", indirect_ref);
  59    |                      ^^^^^^^^^^^^
  60
  61 warning: cast `nop` with `as fn()` to obtain a function pointer
  62   --> $DIR/function-references.rs:78:22
  63    |
  64 LL |     println!("{:p}", &nop);
  65    |                      ^^^^
  66
  67 warning: cast `bar` with `as fn(_) -> _` to obtain a function pointer
  68   --> $DIR/function-references.rs:80:22
  69    |
  70 LL |     println!("{:p}", &bar);
  71    |                      ^^^^
  72
  73 warning: cast `baz` with `as fn(_, _) -> _` to obtain a function pointer
  74   --> $DIR/function-references.rs:82:22
  75    |
  76 LL |     println!("{:p}", &baz);
  77    |                      ^^^^
  78
  79 warning: cast `unsafe_fn` with `as unsafe fn()` to obtain a function pointer
  80   --> $DIR/function-references.rs:84:22
  81    |
  82 LL |     println!("{:p}", &unsafe_fn);
  83    |                      ^^^^^^^^^^
  84
  85 warning: cast `c_fn` with `as extern "C" fn()` to obtain a function pointer
  86   --> $DIR/function-references.rs:86:22
  87    |
  88 LL |     println!("{:p}", &c_fn);
  89    |                      ^^^^^
  90
  91 warning: cast `unsafe_c_fn` with `as unsafe extern "C" fn()` to obtain a function pointer
  92   --> $DIR/function-references.rs:88:22
  93    |
  94 LL |     println!("{:p}", &unsafe_c_fn);
  95    |                      ^^^^^^^^^^^^
  96
  97 warning: cast `variadic` with `as unsafe extern "C" fn(_, ...)` to obtain a function pointer
  98   --> $DIR/function-references.rs:90:22
  99    |
 100 LL |     println!("{:p}", &variadic);
 101    |                      ^^^^^^^^^
 102
 103 warning: cast `var` with `as fn(_) -> _` to obtain a function pointer
 104   --> $DIR/function-references.rs:92:22
 105    |
 106 LL |     println!("{:p}", &std::env::var::<String>);
 107    |                      ^^^^^^^^^^^^^^^^^^^^^^^^
 108
 109 warning: cast `nop` with `as fn()` to obtain a function pointer
 110   --> $DIR/function-references.rs:95:32
 111    |
 112 LL |     println!("{:p} {:p} {:p}", &nop, &foo, &bar);
 113    |                                ^^^^
 114
 115 warning: cast `foo` with `as fn() -> _` to obtain a function pointer
 116   --> $DIR/function-references.rs:95:38
 117    |
 118 LL |     println!("{:p} {:p} {:p}", &nop, &foo, &bar);
 119    |                                      ^^^^
 120
 121 warning: cast `bar` with `as fn(_) -> _` to obtain a function pointer
 122   --> $DIR/function-references.rs:95:44
 123    |
 124 LL |     println!("{:p} {:p} {:p}", &nop, &foo, &bar);
 125    |                                            ^^^^
 126
 127 warning: cast `foo` with `as fn() -> _` to obtain a function pointer
 128   --> $DIR/function-references.rs:110:41
 129    |
 130 LL |         std::mem::transmute::<_, usize>(&foo);
 131    |                                         ^^^^
 132
 133 warning: cast `foo` with `as fn() -> _` to obtain a function pointer
 134   --> $DIR/function-references.rs:112:50
 135    |
 136 LL |         std::mem::transmute::<_, (usize, usize)>((&foo, &bar));
 137    |                                                  ^^^^^^^^^^^^
 138
 139 warning: cast `bar` with `as fn(_) -> _` to obtain a function pointer
 140   --> $DIR/function-references.rs:112:50
 141    |
 142 LL |         std::mem::transmute::<_, (usize, usize)>((&foo, &bar));
 143    |                                                  ^^^^^^^^^^^^
 144
 145 warning: cast `bar` with `as fn(_) -> _` to obtain a function pointer
 146   --> $DIR/function-references.rs:122:15
 147    |
 148 LL |     print_ptr(&bar);
 149    |               ^^^^
 150
 151 warning: cast `bar` with `as fn(_) -> _` to obtain a function pointer
 152   --> $DIR/function-references.rs:124:24
 153    |
 154 LL |     bound_by_ptr_trait(&bar);
 155    |                        ^^^^
 156
 157 warning: cast `bar` with `as fn(_) -> _` to obtain a function pointer
 158   --> $DIR/function-references.rs:126:30
 159    |
 160 LL |     bound_by_ptr_trait_tuple((&foo, &bar));
 161    |                              ^^^^^^^^^^^^
 162
 163 warning: cast `foo` with `as fn() -> _` to obtain a function pointer
 164   --> $DIR/function-references.rs:126:30
 165    |
 166 LL |     bound_by_ptr_trait_tuple((&foo, &bar));
 167    |                              ^^^^^^^^^^^^
 168
 169 warning: 27 warnings emitted
 170