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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
commit | 698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch) | |
tree | 173a775858bd501c378080a10dca74132f05bc50 /src/test/ui/zero-sized/zero-sized-btreemap-insert.rs | |
parent | Initial commit. (diff) | |
download | rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip |
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/test/ui/zero-sized/zero-sized-btreemap-insert.rs')
-rw-r--r-- | src/test/ui/zero-sized/zero-sized-btreemap-insert.rs | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/src/test/ui/zero-sized/zero-sized-btreemap-insert.rs b/src/test/ui/zero-sized/zero-sized-btreemap-insert.rs new file mode 100644 index 000000000..52edb33d6 --- /dev/null +++ b/src/test/ui/zero-sized/zero-sized-btreemap-insert.rs @@ -0,0 +1,25 @@ +// run-pass +#![allow(unused_variables)] +#![allow(unused_imports)] +use std::cmp::{Ord, Ordering, PartialOrd}; +use std::collections::BTreeMap; +use std::iter::Iterator; + +#[derive(Eq, Hash, Debug, Ord, PartialEq, PartialOrd)] +struct Zst; + +fn main() { + const N: usize = 8; + + for len in 0..N { + let mut tester = BTreeMap::new(); + assert_eq!(tester.len(), 0); + for bit in 0..len { + tester.insert(Zst, ()); + } + assert_eq!(tester.len(), if len == 0 { 0 } else { 1 }); + assert_eq!(tester.iter().count(), if len == 0 { 0 } else { 1 }); + assert_eq!(tester.get(&Zst).is_some(), len > 0); + tester.clear(); + } +} |