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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:13 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:13 +0000 |
commit | 218caa410aa38c29984be31a5229b9fa717560ee (patch) | |
tree | c54bd55eeb6e4c508940a30e94c0032fbd45d677 /tests/ui/unboxed-closures/unboxed-closures-blanket-fn-mut.rs | |
parent | Releasing progress-linux version 1.67.1+dfsg1-1~progress7.99u1. (diff) | |
download | rustc-218caa410aa38c29984be31a5229b9fa717560ee.tar.xz rustc-218caa410aa38c29984be31a5229b9fa717560ee.zip |
Merging upstream version 1.68.2+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/ui/unboxed-closures/unboxed-closures-blanket-fn-mut.rs')
-rw-r--r-- | tests/ui/unboxed-closures/unboxed-closures-blanket-fn-mut.rs | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/tests/ui/unboxed-closures/unboxed-closures-blanket-fn-mut.rs b/tests/ui/unboxed-closures/unboxed-closures-blanket-fn-mut.rs new file mode 100644 index 000000000..a10016735 --- /dev/null +++ b/tests/ui/unboxed-closures/unboxed-closures-blanket-fn-mut.rs @@ -0,0 +1,27 @@ +// run-pass +#![allow(unused_variables)] +// Test that you can supply `&F` where `F: FnMut()`. + +#![feature(lang_items)] + +fn a<F:FnMut() -> i32>(mut f: F) -> i32 { + f() +} + +fn b(f: &mut dyn FnMut() -> i32) -> i32 { + a(f) +} + +fn c<F:FnMut() -> i32>(f: &mut F) -> i32 { + a(f) +} + +fn main() { + let z: isize = 7; + + let x = b(&mut || 22); + assert_eq!(x, 22); + + let x = c(&mut || 22); + assert_eq!(x, 22); +} |