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Suggest rewriting a malformed hex literal if we expect a float

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This commit is contained in:
Michael Goulet 2022-12-17 23:20:16 +00:00
parent b38a6d373c
commit 3cf22de90f
3 changed files with 87 additions and 0 deletions
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13
src/test/ui/suggestions/bad-hex-float-lit.rs Normal file
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@ -0,0 +1,13 @@
fn main() {
let _f: f32 = 0xAAf32;
//~^ ERROR mismatched types
//~| HELP rewrite this
let _f: f32 = 0xAB_f32;
//~^ ERROR mismatched types
//~| HELP rewrite this
let _f: f64 = 0xFF_f64;
//~^ ERROR mismatched types
//~| HELP rewrite this
}

48
src/test/ui/suggestions/bad-hex-float-lit.stderr Normal file
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error[E0308]: mismatched types
--> $DIR/bad-hex-float-lit.rs:2:19
|
LL | let _f: f32 = 0xAAf32;
| --- ^^^^^^^ expected `f32`, found integer
| |
| expected due to this
|
help: rewrite this as a decimal floating point literal, or use `as` to turn a hex literal into a float
|
LL | let _f: f32 = 0xAA as f32;
| ~~~~~~~~~~~
LL | let _f: f32 = 170_f32;
| ~~~~~~~
error[E0308]: mismatched types
--> $DIR/bad-hex-float-lit.rs:6:19
|
LL | let _f: f32 = 0xAB_f32;
| --- ^^^^^^^^ expected `f32`, found integer
| |
| expected due to this
|
help: rewrite this as a decimal floating point literal, or use `as` to turn a hex literal into a float
|
LL | let _f: f32 = 0xAB as f32;
| ~~~~~~~~~~~
LL | let _f: f32 = 171_f32;
| ~~~~~~~
error[E0308]: mismatched types
--> $DIR/bad-hex-float-lit.rs:10:19
|
LL | let _f: f64 = 0xFF_f64;
| --- ^^^^^^^^ expected `f64`, found integer
| |
| expected due to this
|
help: rewrite this as a decimal floating point literal, or use `as` to turn a hex literal into a float
|
LL | let _f: f64 = 0xFF as f64;
| ~~~~~~~~~~~
LL | let _f: f64 = 255_f64;
| ~~~~~~~
error: aborting due to 3 previous errors
For more information about this error, try `rustc --explain E0308`.