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BTreeMap: keep an eye out on the size of the main components

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This commit is contained in:
Stein Somers 2020-09-26 16:23:50 +02:00
parent fd15e6180d
commit 3e485d7cf5
1 changed files with 9 additions and 0 deletions
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9
library/alloc/src/collections/btree/node/tests.rs
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@ -23,3 +23,12 @@ fn test_splitpoint() {
assert!(left_len + right_len == CAPACITY); assert!(left_len + right_len == CAPACITY);
} }
} }
#[test]
#[cfg(target_arch = "x86_64")]
fn test_sizes() {
assert_eq!(core::mem::size_of::<LeafNode<(), ()>>(), 16);
assert_eq!(core::mem::size_of::<LeafNode<i64, i64>>(), 16 + CAPACITY * 8 * 2);
assert_eq!(core::mem::size_of::<InternalNode<(), ()>>(), 112);
assert_eq!(core::mem::size_of::<InternalNode<i64, i64>>(), 112 + CAPACITY * 8 * 2);
}