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Const-propagate casts

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This commit is contained in:
Oliver Schneider 2018-07-18 14:23:07 +02:00
parent 1f4e21028d
commit 9329957d32
4 changed files with 61 additions and 15 deletions
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3
src/test/ui/const-eval/promoted_errors.rs
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@ -24,5 +24,8 @@ fn main() {
//~| WARN const_err
println!("{}", 1/(false as u32));
//~^ WARN const_err
//~| WARN const_err
let _x = 1/(false as u32);
//~^ WARN const_err
//~| WARN const_err
}

18
src/test/ui/const-eval/promoted_errors.stderr
View file

@ -34,9 +34,27 @@ warning: this expression will panic at runtime
LL | let _x = 1/(1-1);
| ^^^^^^^ attempt to divide by zero
warning: attempt to divide by zero
--> $DIR/promoted_errors.rs:25:20
|
LL | println!("{}", 1/(false as u32));
| ^^^^^^^^^^^^^^^^
warning: this expression will panic at runtime
--> $DIR/promoted_errors.rs:25:20
|
LL | println!("{}", 1/(false as u32));
| ^^^^^^^^^^^^^^^^ attempt to divide by zero
warning: attempt to divide by zero
--> $DIR/promoted_errors.rs:28:14
|
LL | let _x = 1/(false as u32);
| ^^^^^^^^^^^^^^^^
warning: this expression will panic at runtime
--> $DIR/promoted_errors.rs:28:14
|
LL | let _x = 1/(false as u32);
| ^^^^^^^^^^^^^^^^ attempt to divide by zero