mirror of
https://github.com/rust-lang/rust-clippy
synced 2024-11-10 15:14:29 +00:00
520 lines
16 KiB
Text
520 lines
16 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)
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--> tests/ui/cast.rs:16:5
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LL | x0 as f32;
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| ^^^^^^^^^
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= note: `-D clippy::cast-precision-loss` implied by `-D warnings`
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= help: to override `-D warnings` add `#[allow(clippy::cast_precision_loss)]`
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error: casting `i64` to `f32` causes a loss of precision (`i64` is 64 bits wide, but `f32`'s mantissa is only 23 bits wide)
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--> tests/ui/cast.rs:20:5
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LL | x1 as f32;
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| ^^^^^^^^^
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error: casting `i64` to `f64` causes a loss of precision (`i64` is 64 bits wide, but `f64`'s mantissa is only 52 bits wide)
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--> tests/ui/cast.rs:22:5
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LL | x1 as f64;
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| ^^^^^^^^^
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error: casting `u32` to `f32` causes a loss of precision (`u32` is 32 bits wide, but `f32`'s mantissa is only 23 bits wide)
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--> tests/ui/cast.rs:25:5
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LL | x2 as f32;
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| ^^^^^^^^^
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error: casting `u64` to `f32` causes a loss of precision (`u64` is 64 bits wide, but `f32`'s mantissa is only 23 bits wide)
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--> tests/ui/cast.rs:28:5
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LL | x3 as f32;
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| ^^^^^^^^^
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error: casting `u64` to `f64` causes a loss of precision (`u64` is 64 bits wide, but `f64`'s mantissa is only 52 bits wide)
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--> tests/ui/cast.rs:30:5
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LL | x3 as f64;
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| ^^^^^^^^^
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error: casting `f32` to `i32` may truncate the value
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--> tests/ui/cast.rs:33:5
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LL | 1f32 as i32;
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| ^^^^^^^^^^^
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= help: if this is intentional allow the lint with `#[allow(clippy::cast_possible_truncation)]` ...
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= note: `-D clippy::cast-possible-truncation` implied by `-D warnings`
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= help: to override `-D warnings` add `#[allow(clippy::cast_possible_truncation)]`
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error: casting `f32` to `u32` may truncate the value
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--> tests/ui/cast.rs:35:5
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LL | 1f32 as u32;
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| ^^^^^^^^^^^
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= help: if this is intentional allow the lint with `#[allow(clippy::cast_possible_truncation)]` ...
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error: casting `f32` to `u32` may lose the sign of the value
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--> tests/ui/cast.rs:35:5
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LL | 1f32 as u32;
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| ^^^^^^^^^^^
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= note: `-D clippy::cast-sign-loss` implied by `-D warnings`
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= help: to override `-D warnings` add `#[allow(clippy::cast_sign_loss)]`
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error: casting `f64` to `f32` may truncate the value
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--> tests/ui/cast.rs:39:5
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LL | 1f64 as f32;
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| ^^^^^^^^^^^
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= help: if this is intentional allow the lint with `#[allow(clippy::cast_possible_truncation)]` ...
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error: casting `i32` to `i8` may truncate the value
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--> tests/ui/cast.rs:41:5
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LL | 1i32 as i8;
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| ^^^^^^^^^^
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= help: if this is intentional allow the lint with `#[allow(clippy::cast_possible_truncation)]` ...
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help: ... or use `try_from` and handle the error accordingly
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LL | i8::try_from(1i32);
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| ~~~~~~~~~~~~~~~~~~
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error: casting `i32` to `u8` may truncate the value
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--> tests/ui/cast.rs:43:5
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LL | 1i32 as u8;
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| ^^^^^^^^^^
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= help: if this is intentional allow the lint with `#[allow(clippy::cast_possible_truncation)]` ...
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help: ... or use `try_from` and handle the error accordingly
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LL | u8::try_from(1i32);
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| ~~~~~~~~~~~~~~~~~~
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error: casting `f64` to `isize` may truncate the value
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--> tests/ui/cast.rs:45:5
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LL | 1f64 as isize;
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| ^^^^^^^^^^^^^
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= help: if this is intentional allow the lint with `#[allow(clippy::cast_possible_truncation)]` ...
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error: casting `f64` to `usize` may truncate the value
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--> tests/ui/cast.rs:47:5
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LL | 1f64 as usize;
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| ^^^^^^^^^^^^^
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= help: if this is intentional allow the lint with `#[allow(clippy::cast_possible_truncation)]` ...
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error: casting `f64` to `usize` may lose the sign of the value
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--> tests/ui/cast.rs:47:5
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LL | 1f64 as usize;
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| ^^^^^^^^^^^^^
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error: casting `u32` to `u16` may truncate the value
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--> tests/ui/cast.rs:50:5
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LL | 1f32 as u32 as u16;
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| ^^^^^^^^^^^^^^^^^^
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= help: if this is intentional allow the lint with `#[allow(clippy::cast_possible_truncation)]` ...
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help: ... or use `try_from` and handle the error accordingly
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LL | u16::try_from(1f32 as u32);
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| ~~~~~~~~~~~~~~~~~~~~~~~~~~
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error: casting `f32` to `u32` may truncate the value
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--> tests/ui/cast.rs:50:5
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LL | 1f32 as u32 as u16;
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| ^^^^^^^^^^^
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= help: if this is intentional allow the lint with `#[allow(clippy::cast_possible_truncation)]` ...
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error: casting `f32` to `u32` may lose the sign of the value
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--> tests/ui/cast.rs:50:5
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LL | 1f32 as u32 as u16;
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| ^^^^^^^^^^^
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error: casting `i32` to `i8` may truncate the value
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--> tests/ui/cast.rs:55:22
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LL | let _x: i8 = 1i32 as _;
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| ^^^^^^^^^
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= help: if this is intentional allow the lint with `#[allow(clippy::cast_possible_truncation)]` ...
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help: ... or use `try_from` and handle the error accordingly
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LL | let _x: i8 = 1i32.try_into();
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| ~~~~~~~~~~~~~~~
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error: casting `f32` to `i32` may truncate the value
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--> tests/ui/cast.rs:57:9
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LL | 1f32 as i32;
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| ^^^^^^^^^^^
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= help: if this is intentional allow the lint with `#[allow(clippy::cast_possible_truncation)]` ...
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error: casting `f64` to `i32` may truncate the value
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--> tests/ui/cast.rs:59:9
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LL | 1f64 as i32;
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| ^^^^^^^^^^^
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= help: if this is intentional allow the lint with `#[allow(clippy::cast_possible_truncation)]` ...
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error: casting `f32` to `u8` may truncate the value
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--> tests/ui/cast.rs:61:9
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LL | 1f32 as u8;
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| ^^^^^^^^^^
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= help: if this is intentional allow the lint with `#[allow(clippy::cast_possible_truncation)]` ...
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error: casting `f32` to `u8` may lose the sign of the value
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--> tests/ui/cast.rs:61:9
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LL | 1f32 as u8;
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| ^^^^^^^^^^
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error: casting `u8` to `i8` may wrap around the value
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--> tests/ui/cast.rs:66:5
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LL | 1u8 as i8;
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| ^^^^^^^^^
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= note: `-D clippy::cast-possible-wrap` implied by `-D warnings`
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= help: to override `-D warnings` add `#[allow(clippy::cast_possible_wrap)]`
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error: casting `u16` to `i16` may wrap around the value
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--> tests/ui/cast.rs:69:5
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LL | 1u16 as i16;
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| ^^^^^^^^^^^
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error: casting `u32` to `i32` may wrap around the value
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--> tests/ui/cast.rs:71:5
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LL | 1u32 as i32;
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| ^^^^^^^^^^^
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error: casting `u64` to `i64` may wrap around the value
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--> tests/ui/cast.rs:73:5
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LL | 1u64 as i64;
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| ^^^^^^^^^^^
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error: casting `usize` to `isize` may wrap around the value
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--> tests/ui/cast.rs:75:5
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LL | 1usize as isize;
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| ^^^^^^^^^^^^^^^
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error: casting `usize` to `i8` may truncate the value
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--> tests/ui/cast.rs:78:5
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LL | 1usize as i8;
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| ^^^^^^^^^^^^
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= help: if this is intentional allow the lint with `#[allow(clippy::cast_possible_truncation)]` ...
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help: ... or use `try_from` and handle the error accordingly
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LL | i8::try_from(1usize);
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| ~~~~~~~~~~~~~~~~~~~~
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error: casting `usize` to `i16` may truncate the value
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--> tests/ui/cast.rs:81:5
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LL | 1usize as i16;
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| ^^^^^^^^^^^^^
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= help: if this is intentional allow the lint with `#[allow(clippy::cast_possible_truncation)]` ...
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help: ... or use `try_from` and handle the error accordingly
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LL | i16::try_from(1usize);
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| ~~~~~~~~~~~~~~~~~~~~~
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error: casting `usize` to `i16` may wrap around the value on targets with 16-bit wide pointers
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--> tests/ui/cast.rs:81:5
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LL | 1usize as i16;
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| ^^^^^^^^^^^^^
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= note: `usize` and `isize` may be as small as 16 bits on some platforms
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= note: for more information see https://doc.rust-lang.org/reference/types/numeric.html#machine-dependent-integer-types
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error: casting `usize` to `i32` may truncate the value on targets with 64-bit wide pointers
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--> tests/ui/cast.rs:86:5
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LL | 1usize as i32;
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| ^^^^^^^^^^^^^
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= help: if this is intentional allow the lint with `#[allow(clippy::cast_possible_truncation)]` ...
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help: ... or use `try_from` and handle the error accordingly
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LL | i32::try_from(1usize);
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| ~~~~~~~~~~~~~~~~~~~~~
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error: casting `usize` to `i32` may wrap around the value on targets with 32-bit wide pointers
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--> tests/ui/cast.rs:86:5
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LL | 1usize as i32;
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| ^^^^^^^^^^^^^
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error: casting `usize` to `i64` may wrap around the value on targets with 64-bit wide pointers
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--> tests/ui/cast.rs:90:5
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LL | 1usize as i64;
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| ^^^^^^^^^^^^^
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error: casting `u16` to `isize` may wrap around the value on targets with 16-bit wide pointers
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--> tests/ui/cast.rs:95:5
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LL | 1u16 as isize;
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| ^^^^^^^^^^^^^
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= note: `usize` and `isize` may be as small as 16 bits on some platforms
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= note: for more information see https://doc.rust-lang.org/reference/types/numeric.html#machine-dependent-integer-types
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error: casting `u32` to `isize` may wrap around the value on targets with 32-bit wide pointers
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--> tests/ui/cast.rs:99:5
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LL | 1u32 as isize;
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| ^^^^^^^^^^^^^
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error: casting `u64` to `isize` may truncate the value on targets with 32-bit wide pointers
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--> tests/ui/cast.rs:102:5
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LL | 1u64 as isize;
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| ^^^^^^^^^^^^^
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= help: if this is intentional allow the lint with `#[allow(clippy::cast_possible_truncation)]` ...
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help: ... or use `try_from` and handle the error accordingly
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LL | isize::try_from(1u64);
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| ~~~~~~~~~~~~~~~~~~~~~
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error: casting `u64` to `isize` may wrap around the value on targets with 64-bit wide pointers
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--> tests/ui/cast.rs:102:5
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LL | 1u64 as isize;
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| ^^^^^^^^^^^^^
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error: casting `i32` to `u32` may lose the sign of the value
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--> tests/ui/cast.rs:107:5
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LL | -1i32 as u32;
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| ^^^^^^^^^^^^
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error: casting `isize` to `usize` may lose the sign of the value
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--> tests/ui/cast.rs:110:5
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LL | -1isize as usize;
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| ^^^^^^^^^^^^^^^^
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error: casting `i64` to `i8` may truncate the value
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--> tests/ui/cast.rs:179:5
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LL | (-99999999999i64).min(1) as i8;
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= help: if this is intentional allow the lint with `#[allow(clippy::cast_possible_truncation)]` ...
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help: ... or use `try_from` and handle the error accordingly
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LL | i8::try_from((-99999999999i64).min(1));
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| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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error: casting `u64` to `u8` may truncate the value
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--> tests/ui/cast.rs:193:5
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LL | 999999u64.clamp(0, 256) as u8;
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= help: if this is intentional allow the lint with `#[allow(clippy::cast_possible_truncation)]` ...
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help: ... or use `try_from` and handle the error accordingly
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LL | u8::try_from(999999u64.clamp(0, 256));
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| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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error: casting `main::E2` to `u8` may truncate the value
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--> tests/ui/cast.rs:216:21
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LL | let _ = self as u8;
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| ^^^^^^^^^^
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= help: if this is intentional allow the lint with `#[allow(clippy::cast_possible_truncation)]` ...
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help: ... or use `try_from` and handle the error accordingly
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LL | let _ = u8::try_from(self);
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| ~~~~~~~~~~~~~~~~~~
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error: casting `main::E2::B` to `u8` will truncate the value
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--> tests/ui/cast.rs:218:21
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LL | let _ = Self::B as u8;
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| ^^^^^^^^^^^^^
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= note: `-D clippy::cast-enum-truncation` implied by `-D warnings`
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= help: to override `-D warnings` add `#[allow(clippy::cast_enum_truncation)]`
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error: casting `main::E5` to `i8` may truncate the value
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--> tests/ui/cast.rs:260:21
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LL | let _ = self as i8;
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| ^^^^^^^^^^
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= help: if this is intentional allow the lint with `#[allow(clippy::cast_possible_truncation)]` ...
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help: ... or use `try_from` and handle the error accordingly
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LL | let _ = i8::try_from(self);
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| ~~~~~~~~~~~~~~~~~~
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error: casting `main::E5::A` to `i8` will truncate the value
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--> tests/ui/cast.rs:262:21
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LL | let _ = Self::A as i8;
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| ^^^^^^^^^^^^^
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error: casting `main::E6` to `i16` may truncate the value
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--> tests/ui/cast.rs:279:21
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LL | let _ = self as i16;
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| ^^^^^^^^^^^
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= help: if this is intentional allow the lint with `#[allow(clippy::cast_possible_truncation)]` ...
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help: ... or use `try_from` and handle the error accordingly
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LL | let _ = i16::try_from(self);
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| ~~~~~~~~~~~~~~~~~~~
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error: casting `main::E7` to `usize` may truncate the value on targets with 32-bit wide pointers
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--> tests/ui/cast.rs:298:21
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LL | let _ = self as usize;
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| ^^^^^^^^^^^^^
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= help: if this is intentional allow the lint with `#[allow(clippy::cast_possible_truncation)]` ...
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help: ... or use `try_from` and handle the error accordingly
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LL | let _ = usize::try_from(self);
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| ~~~~~~~~~~~~~~~~~~~~~
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error: casting `main::E10` to `u16` may truncate the value
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--> tests/ui/cast.rs:345:21
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LL | let _ = self as u16;
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| ^^^^^^^^^^^
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= help: if this is intentional allow the lint with `#[allow(clippy::cast_possible_truncation)]` ...
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help: ... or use `try_from` and handle the error accordingly
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LL | let _ = u16::try_from(self);
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| ~~~~~~~~~~~~~~~~~~~
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error: casting `u32` to `u8` may truncate the value
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--> tests/ui/cast.rs:356:13
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LL | let c = (q >> 16) as u8;
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| ^^^^^^^^^^^^^^^
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= help: if this is intentional allow the lint with `#[allow(clippy::cast_possible_truncation)]` ...
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help: ... or use `try_from` and handle the error accordingly
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LL | let c = u8::try_from(q >> 16);
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| ~~~~~~~~~~~~~~~~~~~~~
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error: casting `u32` to `u8` may truncate the value
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--> tests/ui/cast.rs:360:13
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LL | let c = (q / 1000) as u8;
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| ^^^^^^^^^^^^^^^^
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= help: if this is intentional allow the lint with `#[allow(clippy::cast_possible_truncation)]` ...
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help: ... or use `try_from` and handle the error accordingly
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LL | let c = u8::try_from(q / 1000);
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| ~~~~~~~~~~~~~~~~~~~~~~
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error: casting `i32` to `u32` may lose the sign of the value
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--> tests/ui/cast.rs:379:5
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LL | (-2_i32).pow(3) as u32;
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| ^^^^^^^^^^^^^^^^^^^^^^
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error: casting `i32` to `u32` may lose the sign of the value
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--> tests/ui/cast.rs:384:5
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LL | (x * x * x) as u32;
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| ^^^^^^^^^^^^^^^^^^
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error: casting `i16` to `u16` may lose the sign of the value
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--> tests/ui/cast.rs:388:5
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LL | (y * y * y * y * -2) as u16;
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^
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error: casting `i16` to `u16` may lose the sign of the value
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--> tests/ui/cast.rs:391:5
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LL | (y * y * y * 2) as u16;
|
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| ^^^^^^^^^^^^^^^^^^^^^^
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error: casting `i16` to `u16` may lose the sign of the value
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--> tests/ui/cast.rs:393:5
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LL | (y * y * y * -2) as u16;
|
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| ^^^^^^^^^^^^^^^^^^^^^^^
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|
|
|
error: casting `i32` to `u32` may lose the sign of the value
|
|
--> tests/ui/cast.rs:398:9
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LL | (a * b * c) as u32;
|
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| ^^^^^^^^^^^^^^^^^^
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error: casting `i32` to `u32` may lose the sign of the value
|
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--> tests/ui/cast.rs:400:9
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LL | (a * -b * c) as u32;
|
|
| ^^^^^^^^^^^^^^^^^^^
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|
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error: casting `i32` to `u32` may lose the sign of the value
|
|
--> tests/ui/cast.rs:403:9
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|
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LL | (a * -2) as u32;
|
|
| ^^^^^^^^^^^^^^^
|
|
|
|
error: casting `i32` to `u32` may lose the sign of the value
|
|
--> tests/ui/cast.rs:405:9
|
|
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|
LL | (a * b * c * -2) as u32;
|
|
| ^^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
error: casting `i32` to `u32` may lose the sign of the value
|
|
--> tests/ui/cast.rs:408:9
|
|
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|
|
LL | (a / b * c) as u32;
|
|
| ^^^^^^^^^^^^^^^^^^
|
|
|
|
error: casting `i32` to `u32` may lose the sign of the value
|
|
--> tests/ui/cast.rs:410:9
|
|
|
|
|
LL | (a / b + b * c) as u32;
|
|
| ^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
error: casting `i32` to `u32` may lose the sign of the value
|
|
--> tests/ui/cast.rs:412:9
|
|
|
|
|
LL | a.pow(3) as u32;
|
|
| ^^^^^^^^^^^^^^^
|
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|
|
error: aborting due to 63 previous errors
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|