rust-clippy/tests/ui/cast.stderr
2018-12-10 08:22:07 +01:00

182 lines
4.4 KiB
Text

error: casting i32 to f32 causes a loss of precision (i32 is 32 bits wide, but f32's mantissa is only 23 bits wide)
--> $DIR/cast.rs:20:5
|
20 | 1i32 as f32;
| ^^^^^^^^^^^
|
= note: `-D clippy::cast-precision-loss` implied by `-D warnings`
error: casting i64 to f32 causes a loss of precision (i64 is 64 bits wide, but f32's mantissa is only 23 bits wide)
--> $DIR/cast.rs:21:5
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21 | 1i64 as f32;
| ^^^^^^^^^^^
error: casting i64 to f64 causes a loss of precision (i64 is 64 bits wide, but f64's mantissa is only 52 bits wide)
--> $DIR/cast.rs:22:5
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22 | 1i64 as f64;
| ^^^^^^^^^^^
error: casting u32 to f32 causes a loss of precision (u32 is 32 bits wide, but f32's mantissa is only 23 bits wide)
--> $DIR/cast.rs:23:5
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23 | 1u32 as f32;
| ^^^^^^^^^^^
error: casting u64 to f32 causes a loss of precision (u64 is 64 bits wide, but f32's mantissa is only 23 bits wide)
--> $DIR/cast.rs:24:5
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24 | 1u64 as f32;
| ^^^^^^^^^^^
error: casting u64 to f64 causes a loss of precision (u64 is 64 bits wide, but f64's mantissa is only 52 bits wide)
--> $DIR/cast.rs:25:5
|
25 | 1u64 as f64;
| ^^^^^^^^^^^
error: casting f32 to i32 may truncate the value
--> $DIR/cast.rs:27:5
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27 | 1f32 as i32;
| ^^^^^^^^^^^
|
= note: `-D clippy::cast-possible-truncation` implied by `-D warnings`
error: casting f32 to u32 may truncate the value
--> $DIR/cast.rs:28:5
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28 | 1f32 as u32;
| ^^^^^^^^^^^
error: casting f32 to u32 may lose the sign of the value
--> $DIR/cast.rs:28:5
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28 | 1f32 as u32;
| ^^^^^^^^^^^
|
= note: `-D clippy::cast-sign-loss` implied by `-D warnings`
error: casting f64 to f32 may truncate the value
--> $DIR/cast.rs:29:5
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29 | 1f64 as f32;
| ^^^^^^^^^^^
error: casting i32 to i8 may truncate the value
--> $DIR/cast.rs:30:5
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30 | 1i32 as i8;
| ^^^^^^^^^^
error: casting i32 to u8 may lose the sign of the value
--> $DIR/cast.rs:31:5
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31 | 1i32 as u8;
| ^^^^^^^^^^
error: casting i32 to u8 may truncate the value
--> $DIR/cast.rs:31:5
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31 | 1i32 as u8;
| ^^^^^^^^^^
error: casting f64 to isize may truncate the value
--> $DIR/cast.rs:32:5
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32 | 1f64 as isize;
| ^^^^^^^^^^^^^
error: casting f64 to usize may truncate the value
--> $DIR/cast.rs:33:5
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33 | 1f64 as usize;
| ^^^^^^^^^^^^^
error: casting f64 to usize may lose the sign of the value
--> $DIR/cast.rs:33:5
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33 | 1f64 as usize;
| ^^^^^^^^^^^^^
error: casting u8 to i8 may wrap around the value
--> $DIR/cast.rs:35:5
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35 | 1u8 as i8;
| ^^^^^^^^^
|
= note: `-D clippy::cast-possible-wrap` implied by `-D warnings`
error: casting u16 to i16 may wrap around the value
--> $DIR/cast.rs:36:5
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36 | 1u16 as i16;
| ^^^^^^^^^^^
error: casting u32 to i32 may wrap around the value
--> $DIR/cast.rs:37:5
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37 | 1u32 as i32;
| ^^^^^^^^^^^
error: casting u64 to i64 may wrap around the value
--> $DIR/cast.rs:38:5
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38 | 1u64 as i64;
| ^^^^^^^^^^^
error: casting usize to isize may wrap around the value
--> $DIR/cast.rs:39:5
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39 | 1usize as isize;
| ^^^^^^^^^^^^^^^
error: casting f32 to f64 may become silently lossy if types change
--> $DIR/cast.rs:41:5
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41 | 1.0f32 as f64;
| ^^^^^^^^^^^^^ help: try: `f64::from(1.0f32)`
|
= note: `-D clippy::cast-lossless` implied by `-D warnings`
error: casting u8 to u16 may become silently lossy if types change
--> $DIR/cast.rs:43:5
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43 | (1u8 + 1u8) as u16;
| ^^^^^^^^^^^^^^^^^^ help: try: `u16::from(1u8 + 1u8)`
error: casting i32 to u32 may lose the sign of the value
--> $DIR/cast.rs:45:5
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45 | 1i32 as u32;
| ^^^^^^^^^^^
error: casting isize to usize may lose the sign of the value
--> $DIR/cast.rs:46:5
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46 | 1isize as usize;
| ^^^^^^^^^^^^^^^
error: casting to the same type is unnecessary (`i32` -> `i32`)
--> $DIR/cast.rs:49:5
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49 | 1i32 as i32;
| ^^^^^^^^^^^
|
= note: `-D clippy::unnecessary-cast` implied by `-D warnings`
error: casting to the same type is unnecessary (`f32` -> `f32`)
--> $DIR/cast.rs:50:5
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50 | 1f32 as f32;
| ^^^^^^^^^^^
error: casting to the same type is unnecessary (`bool` -> `bool`)
--> $DIR/cast.rs:51:5
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51 | false as bool;
| ^^^^^^^^^^^^^
error: aborting due to 28 previous errors