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Only run tests if pointer width is 64bit

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If the pointer width of the architechture is 32bit or something else,
then the tests will most likely produce different results.
This commit is contained in:
Philipp Hansch 2018-10-04 22:26:54 +02:00
parent 391d53db66
commit 8b3d2073fa
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GPG key ID: B6FA06A6E0E2665B
2 changed files with 22 additions and 20 deletions
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8
tests/ui/fn_to_numeric_cast_with_truncation.rs
View file

@ -1,3 +1,4 @@
// only-64bit
#![feature(tool_lints)]
#![warn(clippy::fn_to_numeric_cast_with_truncation)]
@ -13,11 +14,12 @@ fn test_fn_to_numeric_cast_with_truncation() {
let _ = foo as u16;
let _ = foo as u32;
// TODO: Is it bad to have these tests?
// Running the tests on a different architechture will
// produce different results
// These should not lint, because because casting to these types
// does not truncate the function pointer address.
let _ = foo as u64;
let _ = foo as i64;
let _ = foo as u128;
let _ = foo as i128;
}
fn main() {}

34
tests/ui/fn_to_numeric_cast_with_truncation.stderr
View file

@ -1,39 +1,39 @@
error: casting function pointer `foo` to `i8`, which truncates the value
--> $DIR/fn_to_numeric_cast_with_truncation.rs:9:13
|
9 | let _ = foo as i8;
| ^^^^^^^^^ help: try: `foo as usize`
|
= note: `-D clippy::fn-to-numeric-cast-with-truncation` implied by `-D warnings`
error: casting function pointer `foo` to `i16`, which truncates the value
--> $DIR/fn_to_numeric_cast_with_truncation.rs:10:13
|
10 | let _ = foo as i16;
10 | let _ = foo as i8;
| ^^^^^^^^^ help: try: `foo as usize`
|
= note: `-D clippy::fn-to-numeric-cast-with-truncation` implied by `-D warnings`
error: casting function pointer `foo` to `i16`, which truncates the value
--> $DIR/fn_to_numeric_cast_with_truncation.rs:11:13
|
11 | let _ = foo as i16;
| ^^^^^^^^^^ help: try: `foo as usize`
error: casting function pointer `foo` to `i32`, which truncates the value
--> $DIR/fn_to_numeric_cast_with_truncation.rs:11:13
--> $DIR/fn_to_numeric_cast_with_truncation.rs:12:13
|
11 | let _ = foo as i32;
12 | let _ = foo as i32;
| ^^^^^^^^^^ help: try: `foo as usize`
error: casting function pointer `foo` to `u8`, which truncates the value
--> $DIR/fn_to_numeric_cast_with_truncation.rs:12:13
--> $DIR/fn_to_numeric_cast_with_truncation.rs:13:13
|
12 | let _ = foo as u8;
13 | let _ = foo as u8;
| ^^^^^^^^^ help: try: `foo as usize`
error: casting function pointer `foo` to `u16`, which truncates the value
--> $DIR/fn_to_numeric_cast_with_truncation.rs:13:13
--> $DIR/fn_to_numeric_cast_with_truncation.rs:14:13
|
13 | let _ = foo as u16;
14 | let _ = foo as u16;
| ^^^^^^^^^^ help: try: `foo as usize`
error: casting function pointer `foo` to `u32`, which truncates the value
--> $DIR/fn_to_numeric_cast_with_truncation.rs:14:13
--> $DIR/fn_to_numeric_cast_with_truncation.rs:15:13
|
14 | let _ = foo as u32;
15 | let _ = foo as u32;
| ^^^^^^^^^^ help: try: `foo as usize`
error: aborting due to 6 previous errors