src/test/ui/c-variadic/variadic-ffi-1.stderr

   1 error[E0045]: C-variadic function must have C or cdecl calling convention
   2   --> $DIR/variadic-ffi-1.rs:9:5
   3    |
   4 LL |     fn printf(_: *const u8, ...);
   5    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ C-variadics require C or cdecl calling convention
   6
   7 error[E0060]: this function takes at least 2 arguments but 0 arguments were supplied
   8   --> $DIR/variadic-ffi-1.rs:20:9
   9    |
  10 LL |         foo();
  11    |         ^^^-- two arguments of type `isize` and `u8` are missing
  12    |
  13 note: function defined here
  14   --> $DIR/variadic-ffi-1.rs:13:8
  15    |
  16 LL |     fn foo(f: isize, x: u8, ...);
  17    |        ^^^
  18 help: provide the arguments
  19    |
  20 LL |         foo(/* isize */, /* u8 */);
  21    |         ~~~~~~~~~~~~~~~~~~~~~~~~~~
  22
  23 error[E0060]: this function takes at least 2 arguments but 1 argument was supplied
  24   --> $DIR/variadic-ffi-1.rs:21:9
  25    |
  26 LL |         foo(1);
  27    |         ^^^--- an argument of type `u8` is missing
  28    |
  29 note: function defined here
  30   --> $DIR/variadic-ffi-1.rs:13:8
  31    |
  32 LL |     fn foo(f: isize, x: u8, ...);
  33    |        ^^^
  34 help: provide the argument
  35    |
  36 LL |         foo(1, /* u8 */);
  37    |         ~~~~~~~~~~~~~~~~
  38
  39 error[E0308]: mismatched types
  40   --> $DIR/variadic-ffi-1.rs:23:56
  41    |
  42 LL |         let x: unsafe extern "C" fn(f: isize, x: u8) = foo;
  43    |                -------------------------------------   ^^^ expected non-variadic fn, found variadic function
  44    |                |
  45    |                expected due to this
  46    |
  47    = note: expected fn pointer `unsafe extern "C" fn(_, _)`
  48                  found fn item `unsafe extern "C" fn(_, _, ...) {foo}`
  49
  50 error[E0308]: mismatched types
  51   --> $DIR/variadic-ffi-1.rs:24:54
  52    |
  53 LL |         let y: extern "C" fn(f: isize, x: u8, ...) = bar;
  54    |                -----------------------------------   ^^^ expected variadic fn, found non-variadic function
  55    |                |
  56    |                expected due to this
  57    |
  58    = note: expected fn pointer `extern "C" fn(_, _, ...)`
  59                  found fn item `extern "C" fn(_, _) {bar}`
  60
  61 error[E0617]: can't pass `f32` to variadic function
  62   --> $DIR/variadic-ffi-1.rs:26:19
  63    |
  64 LL |         foo(1, 2, 3f32);
  65    |                   ^^^^ help: cast the value to `c_double`: `3f32 as c_double`
  66
  67 error[E0617]: can't pass `bool` to variadic function
  68   --> $DIR/variadic-ffi-1.rs:27:19
  69    |
  70 LL |         foo(1, 2, true);
  71    |                   ^^^^ help: cast the value to `c_int`: `true as c_int`
  72
  73 error[E0617]: can't pass `i8` to variadic function
  74   --> $DIR/variadic-ffi-1.rs:28:19
  75    |
  76 LL |         foo(1, 2, 1i8);
  77    |                   ^^^ help: cast the value to `c_int`: `1i8 as c_int`
  78
  79 error[E0617]: can't pass `u8` to variadic function
  80   --> $DIR/variadic-ffi-1.rs:29:19
  81    |
  82 LL |         foo(1, 2, 1u8);
  83    |                   ^^^ help: cast the value to `c_uint`: `1u8 as c_uint`
  84
  85 error[E0617]: can't pass `i16` to variadic function
  86   --> $DIR/variadic-ffi-1.rs:30:19
  87    |
  88 LL |         foo(1, 2, 1i16);
  89    |                   ^^^^ help: cast the value to `c_int`: `1i16 as c_int`
  90
  91 error[E0617]: can't pass `u16` to variadic function
  92   --> $DIR/variadic-ffi-1.rs:31:19
  93    |
  94 LL |         foo(1, 2, 1u16);
  95    |                   ^^^^ help: cast the value to `c_uint`: `1u16 as c_uint`
  96
  97 error: aborting due to 11 previous errors
  98
  99 Some errors have detailed explanations: E0045, E0060, E0308, E0617.
 100 For more information about an error, try `rustc --explain E0045`.