rust/tests/ui/cast.stderr
2019-04-25 12:06:20 +02:00

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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:11:5
|
LL | x0 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:13:5
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LL | x1 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:14:5
|
LL | x1 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:16:5
|
LL | x2 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:18:5
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LL | x3 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:19:5
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LL | x3 as f64;
| ^^^^^^^^^
error: casting f32 to i32 may truncate the value
--> $DIR/cast.rs:21:5
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LL | 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:22:5
|
LL | 1f32 as u32;
| ^^^^^^^^^^^
error: casting f32 to u32 may lose the sign of the value
--> $DIR/cast.rs:22:5
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LL | 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:23:5
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LL | 1f64 as f32;
| ^^^^^^^^^^^
error: casting i32 to i8 may truncate the value
--> $DIR/cast.rs:24:5
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LL | 1i32 as i8;
| ^^^^^^^^^^
error: casting i32 to u8 may truncate the value
--> $DIR/cast.rs:25:5
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LL | 1i32 as u8;
| ^^^^^^^^^^
error: casting f64 to isize may truncate the value
--> $DIR/cast.rs:26:5
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LL | 1f64 as isize;
| ^^^^^^^^^^^^^
error: casting f64 to usize may truncate the value
--> $DIR/cast.rs:27:5
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LL | 1f64 as usize;
| ^^^^^^^^^^^^^
error: casting f64 to usize may lose the sign of the value
--> $DIR/cast.rs:27:5
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LL | 1f64 as usize;
| ^^^^^^^^^^^^^
error: casting u8 to i8 may wrap around the value
--> $DIR/cast.rs:29:5
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LL | 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:30:5
|
LL | 1u16 as i16;
| ^^^^^^^^^^^
error: casting u32 to i32 may wrap around the value
--> $DIR/cast.rs:31:5
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LL | 1u32 as i32;
| ^^^^^^^^^^^
error: casting u64 to i64 may wrap around the value
--> $DIR/cast.rs:32:5
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LL | 1u64 as i64;
| ^^^^^^^^^^^
error: casting usize to isize may wrap around the value
--> $DIR/cast.rs:33:5
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LL | 1usize as isize;
| ^^^^^^^^^^^^^^^
error: casting i32 to u32 may lose the sign of the value
--> $DIR/cast.rs:36:5
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LL | -1i32 as u32;
| ^^^^^^^^^^^^
error: casting isize to usize may lose the sign of the value
--> $DIR/cast.rs:38:5
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LL | -1isize as usize;
| ^^^^^^^^^^^^^^^^
error: casting to the same type is unnecessary (`i32` -> `i32`)
--> $DIR/cast.rs:47:5
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LL | 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:48:5
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LL | 1f32 as f32;
| ^^^^^^^^^^^
error: casting to the same type is unnecessary (`bool` -> `bool`)
--> $DIR/cast.rs:49:5
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LL | false as bool;
| ^^^^^^^^^^^^^
error: casting integer literal to f32 is unnecessary
--> $DIR/cast.rs:64:5
|
LL | 100 as f32;
| ^^^^^^^^^^ help: try: `100_f32`
error: casting integer literal to f64 is unnecessary
--> $DIR/cast.rs:65:5
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LL | 100 as f64;
| ^^^^^^^^^^ help: try: `100_f64`
error: casting integer literal to f64 is unnecessary
--> $DIR/cast.rs:66:5
|
LL | 100_i32 as f64;
| ^^^^^^^^^^^^^^ help: try: `100_f64`
error: aborting due to 28 previous errors