rust/tests/ui/feature-gates/feature-gate-simd-ffi.rs

#![feature(repr_simd)]
#![allow(dead_code)]

#[repr(simd)]
#[derive(Copy, Clone)]
struct LocalSimd([u8; 2]);

extern "C" {
    fn baz() -> LocalSimd; //~ ERROR use of SIMD type
    fn qux(x: LocalSimd); //~ ERROR use of SIMD type
}

fn main() {}
std: Remove deprecated functionality from 1.5 This is a standard "clean out libstd" commit which removes all 1.5-and-before deprecated functionality as it's now all been deprecated for at least one entire cycle. 2015-12-02 17:07:29 -08:00			`#![feature(repr_simd)]`
			`#![allow(dead_code)]`
Feature gate SIMD in FFI, due to unknown ABIs. I don't know if this handling of SIMD types is correct for the C ABI on all platforms, so lets add an even finer feature gate than just the `simd` one. The `simd` one can be used with (relatively) little risk of complete nonsense, the reason for it is that it is likely that things will change. Using the types in FFI with an incorrect ABI will at best give absolute nonsense results, but possibly cause serious breakage too, so this is a step up in badness, hence a new feature gate. 2015-01-16 10:16:20 +11:00
std: Remove deprecated functionality from 1.5 This is a standard "clean out libstd" commit which removes all 1.5-and-before deprecated functionality as it's now all been deprecated for at least one entire cycle. 2015-12-02 17:07:29 -08:00			`#[repr(simd)]`
			`#[derive(Copy, Clone)]`
Ban non-array SIMD 2024-08-22 01:28:20 -07:00			`struct LocalSimd([u8; 2]);`
Feature gate SIMD in FFI, due to unknown ABIs. I don't know if this handling of SIMD types is correct for the C ABI on all platforms, so lets add an even finer feature gate than just the `simd` one. The `simd` one can be used with (relatively) little risk of complete nonsense, the reason for it is that it is likely that things will change. Using the types in FFI with an incorrect ABI will at best give absolute nonsense results, but possibly cause serious breakage too, so this is a step up in badness, hence a new feature gate. 2015-01-16 10:16:20 +11:00
Update tests for extern block linting 2020-09-01 17:12:52 -04:00			`extern "C" {`
Feature gate SIMD in FFI, due to unknown ABIs. I don't know if this handling of SIMD types is correct for the C ABI on all platforms, so lets add an even finer feature gate than just the `simd` one. The `simd` one can be used with (relatively) little risk of complete nonsense, the reason for it is that it is likely that things will change. Using the types in FFI with an incorrect ABI will at best give absolute nonsense results, but possibly cause serious breakage too, so this is a step up in badness, hence a new feature gate. 2015-01-16 10:16:20 +11:00			`fn baz() -> LocalSimd; //~ ERROR use of SIMD type`
			`fn qux(x: LocalSimd); //~ ERROR use of SIMD type`
			`}`

			`fn main() {}`