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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/associated-consts/issue-69020-assoc-const-arith-overflow.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/associated-consts/issue-69020-assoc-const-arith-overflow.rs')
-rw-r--r-- | tests/ui/associated-consts/issue-69020-assoc-const-arith-overflow.rs | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/tests/ui/associated-consts/issue-69020-assoc-const-arith-overflow.rs b/tests/ui/associated-consts/issue-69020-assoc-const-arith-overflow.rs new file mode 100644 index 000000000..d4af6e864 --- /dev/null +++ b/tests/ui/associated-consts/issue-69020-assoc-const-arith-overflow.rs @@ -0,0 +1,46 @@ +// revisions: noopt opt opt_with_overflow_checks +//[noopt]compile-flags: -C opt-level=0 +//[opt]compile-flags: -O +//[opt_with_overflow_checks]compile-flags: -C overflow-checks=on -O + +#![crate_type="lib"] + +pub trait Foo { + const NEG: i32; + const NEG_REV: i32; + + const ADD: i32; + const ADD_REV: i32; + + const DIV: i32; + const DIV_REV: i32; + + const OOB: i32; + const OOB_REV: i32; +} + +// These constants cannot be evaluated already (they depend on `T::N`), so they can just be linted +// like normal run-time code. But codegen works a bit different in const context, so this test +// makes sure that we still catch overflow. Also make sure we emit the same lints if we reverse the +// operands (so that the generic operand comes first). +impl<T: Foo> Foo for Vec<T> { + const NEG: i32 = -i32::MIN + T::NEG; + //~^ ERROR arithmetic operation will overflow + const NEG_REV: i32 = T::NEG + (-i32::MIN); + //~^ ERROR arithmetic operation will overflow + + const ADD: i32 = (i32::MAX+1) + T::ADD; + //~^ ERROR arithmetic operation will overflow + const ADD_REV: i32 = T::ADD + (i32::MAX+1); + //~^ ERROR arithmetic operation will overflow + + const DIV: i32 = (1/0) + T::DIV; + //~^ ERROR operation will panic + const DIV_REV: i32 = T::DIV + (1/0); + //~^ ERROR operation will panic + + const OOB: i32 = [1][1] + T::OOB; + //~^ ERROR operation will panic + const OOB_REV: i32 = T::OOB + [1][1]; + //~^ ERROR operation will panic +} |