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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/mutexguard-sync.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/mutexguard-sync.rs')
-rw-r--r-- | src/test/ui/mutexguard-sync.rs | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/test/ui/mutexguard-sync.rs b/src/test/ui/mutexguard-sync.rs new file mode 100644 index 000000000..b56418383 --- /dev/null +++ b/src/test/ui/mutexguard-sync.rs @@ -0,0 +1,13 @@ +// MutexGuard<Cell<i32>> must not be Sync, that would be unsound. +use std::sync::Mutex; +use std::cell::Cell; + +fn test_sync<T: Sync>(_t: T) {} + +fn main() +{ + let m = Mutex::new(Cell::new(0i32)); + let guard = m.lock().unwrap(); + test_sync(guard); + //~^ ERROR `Cell<i32>` cannot be shared between threads safely [E0277] +} |