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| author | Vadim Petrochenkov <vadim.petrochenkov@gmail.com> | 2019-07-27 01:33:01 +0300 |
|---|---|---|
| committer | Vadim Petrochenkov <vadim.petrochenkov@gmail.com> | 2019-07-27 18:56:16 +0300 |
| commit | 9be35f82c1abf2ecbab489bca9eca138ea648312 (patch) | |
| tree | 69888506e34af447d9748c0d542de3ba1dd76210 /src/test/ui/union/union-basic.rs | |
| parent | ca9faa52f5ada0054b1fa27d97aedf448afb059b (diff) | |
| download | rust-9be35f82c1abf2ecbab489bca9eca138ea648312.tar.gz rust-9be35f82c1abf2ecbab489bca9eca138ea648312.zip | |
tests: Move run-pass tests without naming conflicts to ui
Diffstat (limited to 'src/test/ui/union/union-basic.rs')
| -rw-r--r-- | src/test/ui/union/union-basic.rs | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/src/test/ui/union/union-basic.rs b/src/test/ui/union/union-basic.rs new file mode 100644 index 00000000000..73cc9793f2c --- /dev/null +++ b/src/test/ui/union/union-basic.rs @@ -0,0 +1,59 @@ +// run-pass +#![allow(unused_imports)] + +// aux-build:union.rs + +extern crate union; +use std::mem::{size_of, align_of, zeroed}; + +union U { + a: u8, + b: u16 +} + +fn local() { + assert_eq!(size_of::<U>(), 2); + assert_eq!(align_of::<U>(), 2); + + let u = U { a: 10 }; + unsafe { + assert_eq!(u.a, 10); + let U { a } = u; + assert_eq!(a, 10); + } + + let mut w = U { b: 0 }; + unsafe { + assert_eq!(w.a, 0); + assert_eq!(w.b, 0); + w.a = 1; + assert_eq!(w.a, 1); + assert_eq!(w.b.to_le(), 1); + } +} + +fn xcrate() { + assert_eq!(size_of::<union::U>(), 2); + assert_eq!(align_of::<union::U>(), 2); + + let u = union::U { a: 10 }; + unsafe { + assert_eq!(u.a, 10); + let union::U { a } = u; + assert_eq!(a, 10); + } + + let mut w = union::U { b: 0 }; + unsafe { + assert_eq!(w.a, 0); + assert_eq!(w.b, 0); + w.a = 1; + assert_eq!(w.a, 1); + assert_eq!(w.b.to_le(), 1); + } +} + +fn main() { + local(); + xcrate(); +} |
