44 lines
1.9 KiB
Rust
44 lines
1.9 KiB
Rust
// Copyright 2013 The Rust Project Developers. See the COPYRIGHT
|
|
// file at the top-level directory of this distribution and at
|
|
// http://rust-lang.org/COPYRIGHT.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
|
|
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
|
|
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
|
|
// option. This file may not be copied, modified, or distributed
|
|
// except according to those terms.
|
|
|
|
extern "stdcall" {
|
|
fn printf(_: *const u8, ...); //~ ERROR: variadic function must have C calling convention
|
|
}
|
|
|
|
extern {
|
|
fn foo(f: int, x: u8, ...);
|
|
}
|
|
|
|
extern "C" fn bar(f: int, x: u8) {}
|
|
|
|
fn main() {
|
|
unsafe {
|
|
foo(); //~ ERROR: this function takes at least 2 parameters but 0 parameters were supplied
|
|
foo(1); //~ ERROR: this function takes at least 2 parameters but 1 parameter was supplied
|
|
|
|
let x: unsafe extern "C" fn(f: int, x: u8) = foo;
|
|
//~^ ERROR: mismatched types: expected `unsafe extern "C" fn(int, u8)`
|
|
// , found `unsafe extern "C" fn(int, u8, ...)`
|
|
// (expected non-variadic fn, found variadic function)
|
|
|
|
let y: unsafe extern "C" fn(f: int, x: u8, ...) = bar;
|
|
//~^ ERROR: mismatched types: expected `unsafe extern "C" fn(int, u8, ...)`
|
|
// , found `extern "C" extern fn(int, u8)`
|
|
// (expected variadic fn, found non-variadic function)
|
|
|
|
foo(1, 2, 3f32); //~ ERROR: can't pass an f32 to variadic function, cast to c_double
|
|
foo(1, 2, true); //~ ERROR: can't pass bool to variadic function, cast to c_int
|
|
foo(1, 2, 1i8); //~ ERROR: can't pass i8 to variadic function, cast to c_int
|
|
foo(1, 2, 1u8); //~ ERROR: can't pass u8 to variadic function, cast to c_uint
|
|
foo(1, 2, 1i16); //~ ERROR: can't pass i16 to variadic function, cast to c_int
|
|
foo(1, 2, 1u16); //~ ERROR: can't pass u16 to variadic function, cast to c_uint
|
|
}
|
|
}
|