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Diffstat (limited to 'tests/ui/packed/packed-struct-generic-size.rs')
-rw-r--r-- | tests/ui/packed/packed-struct-generic-size.rs | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/tests/ui/packed/packed-struct-generic-size.rs b/tests/ui/packed/packed-struct-generic-size.rs new file mode 100644 index 000000000..7c93e46c3 --- /dev/null +++ b/tests/ui/packed/packed-struct-generic-size.rs @@ -0,0 +1,44 @@ +// run-pass +#![allow(dead_code)] +#![allow(unused_comparisons)] + +use std::mem; + +#[repr(packed)] +struct P1<T, S> { + a: T, + b: u8, + c: S +} + +#[repr(packed(2))] +struct P2<T, S> { + a: T, + b: u8, + c: S +} + +#[repr(C, packed(4))] +struct P4C<T, S> { + a: T, + b: u8, + c: S +} + +macro_rules! check { + ($t:ty, $align:expr, $size:expr) => ({ + assert_eq!(mem::align_of::<$t>(), $align); + assert_eq!(mem::size_of::<$t>(), $size); + }); +} + +pub fn main() { + check!(P1<u8, u8>, 1, 3); + check!(P1<u64, u16>, 1, 11); + + check!(P2<u8, u8>, 1, 3); + check!(P2<u64, u16>, 2, 12); + + check!(P4C<u8, u8>, 1, 3); + check!(P4C<u16, u64>, 4, 12); +} |