8c416c3197
`::from` is not a const fn, so applying the suggestion of `cast_lossless` would fail to compile. The fix is to skip the lint if the cast is found inside a const fn.
25 lines
593 B
Rust
25 lines
593 B
Rust
// run-rustfix
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#![allow(clippy::no_effect, clippy::unnecessary_operation, dead_code)]
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#![warn(clippy::cast_lossless)]
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fn main() {
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// Test clippy::cast_lossless with casts to floating-point types
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1i8 as f32;
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1i8 as f64;
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1u8 as f32;
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1u8 as f64;
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1i16 as f32;
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1i16 as f64;
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1u16 as f32;
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1u16 as f64;
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1i32 as f64;
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1u32 as f64;
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}
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// The lint would suggest using `f64::from(input)` here but the `XX::from` function is not const,
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// so we skip the lint if the expression is in a const fn.
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// See #3656
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const fn abc(input: f32) -> f64 {
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input as f64
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}
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