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Add a case to type-sizes to explicitly verify that field reordering triggers.

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This commit is contained in:
Austin Hicks 2016-12-07 12:42:07 -05:00
parent 9966bbd1b1
commit 79c35bbd8c
1 changed files with 7 additions and 0 deletions
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7
src/test/run-pass/type-sizes.rs
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@ -31,6 +31,10 @@ enum e3 {
a([u16; 0], u8), b
}
// Test struct field reordering to make sure it actually reorders.
struct WillOptimize1(u8, u16, u8);
struct WillOptimize2 { a: u8, b: u16, c: u8}
pub fn main() {
assert_eq!(size_of::<u8>(), 1 as usize);
assert_eq!(size_of::<u32>(), 4 as usize);
@ -54,4 +58,7 @@ pub fn main() {
assert_eq!(size_of::<e1>(), 8 as usize);
assert_eq!(size_of::<e2>(), 8 as usize);
assert_eq!(size_of::<e3>(), 4 as usize);
assert_eq!(size_of::<WillOptimize1>(), 4);
assert_eq!(size_of::<WillOptimize2>(), 4);
}