mirror of
https://github.com/rust-lang/rust.git
synced 2025-11-04 06:56:14 +00:00
103 lines
3.5 KiB
Plaintext
103 lines
3.5 KiB
Plaintext
error[E0045]: C-variadic function must have a compatible calling convention, like `C` or `cdecl`
|
|
--> $DIR/variadic-ffi-1.rs:9:5
|
|
|
|
|
LL | fn printf(_: *const u8, ...);
|
|
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ C-variadic function must have a compatible calling convention
|
|
|
|
error[E0060]: this function takes at least 2 arguments but 0 arguments were supplied
|
|
--> $DIR/variadic-ffi-1.rs:22:9
|
|
|
|
|
LL | foo();
|
|
| ^^^-- two arguments of type `isize` and `u8` are missing
|
|
|
|
|
note: function defined here
|
|
--> $DIR/variadic-ffi-1.rs:15:8
|
|
|
|
|
LL | fn foo(f: isize, x: u8, ...);
|
|
| ^^^
|
|
help: provide the arguments
|
|
|
|
|
LL | foo(/* isize */, /* u8 */);
|
|
| ~~~~~~~~~~~~~~~~~~~~~~~
|
|
|
|
error[E0060]: this function takes at least 2 arguments but 1 argument was supplied
|
|
--> $DIR/variadic-ffi-1.rs:23:9
|
|
|
|
|
LL | foo(1);
|
|
| ^^^--- an argument of type `u8` is missing
|
|
|
|
|
note: function defined here
|
|
--> $DIR/variadic-ffi-1.rs:15:8
|
|
|
|
|
LL | fn foo(f: isize, x: u8, ...);
|
|
| ^^^
|
|
help: provide the argument
|
|
|
|
|
LL | foo(1, /* u8 */);
|
|
| ~~~~~~~~~~~~~
|
|
|
|
error[E0308]: mismatched types
|
|
--> $DIR/variadic-ffi-1.rs:25:56
|
|
|
|
|
LL | let x: unsafe extern "C" fn(f: isize, x: u8) = foo;
|
|
| ------------------------------------- ^^^ expected non-variadic fn, found variadic function
|
|
| |
|
|
| expected due to this
|
|
|
|
|
= note: expected fn pointer `unsafe extern "C" fn(_, _)`
|
|
found fn item `unsafe extern "C" fn(_, _, ...) {foo}`
|
|
= note: when the arguments and return types match, functions can be coerced to function pointers
|
|
|
|
error[E0308]: mismatched types
|
|
--> $DIR/variadic-ffi-1.rs:26:54
|
|
|
|
|
LL | let y: extern "C" fn(f: isize, x: u8, ...) = bar;
|
|
| ----------------------------------- ^^^ expected variadic fn, found non-variadic function
|
|
| |
|
|
| expected due to this
|
|
|
|
|
= note: expected fn pointer `extern "C" fn(_, _, ...)`
|
|
found fn item `extern "C" fn(_, _) {bar}`
|
|
= note: when the arguments and return types match, functions can be coerced to function pointers
|
|
|
|
error[E0617]: can't pass `f32` to variadic function
|
|
--> $DIR/variadic-ffi-1.rs:28:19
|
|
|
|
|
LL | foo(1, 2, 3f32);
|
|
| ^^^^ help: cast the value to `c_double`: `3f32 as c_double`
|
|
|
|
error[E0617]: can't pass `bool` to variadic function
|
|
--> $DIR/variadic-ffi-1.rs:29:19
|
|
|
|
|
LL | foo(1, 2, true);
|
|
| ^^^^ help: cast the value to `c_int`: `true as c_int`
|
|
|
|
error[E0617]: can't pass `i8` to variadic function
|
|
--> $DIR/variadic-ffi-1.rs:30:19
|
|
|
|
|
LL | foo(1, 2, 1i8);
|
|
| ^^^ help: cast the value to `c_int`: `1i8 as c_int`
|
|
|
|
error[E0617]: can't pass `u8` to variadic function
|
|
--> $DIR/variadic-ffi-1.rs:31:19
|
|
|
|
|
LL | foo(1, 2, 1u8);
|
|
| ^^^ help: cast the value to `c_uint`: `1u8 as c_uint`
|
|
|
|
error[E0617]: can't pass `i16` to variadic function
|
|
--> $DIR/variadic-ffi-1.rs:32:19
|
|
|
|
|
LL | foo(1, 2, 1i16);
|
|
| ^^^^ help: cast the value to `c_int`: `1i16 as c_int`
|
|
|
|
error[E0617]: can't pass `u16` to variadic function
|
|
--> $DIR/variadic-ffi-1.rs:33:19
|
|
|
|
|
LL | foo(1, 2, 1u16);
|
|
| ^^^^ help: cast the value to `c_uint`: `1u16 as c_uint`
|
|
|
|
error: aborting due to 11 previous errors
|
|
|
|
Some errors have detailed explanations: E0045, E0060, E0308, E0617.
|
|
For more information about an error, try `rustc --explain E0045`.
|