mirror of
https://github.com/rust-lang/rust-clippy
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eb0408ea65
Currently `cmp_nan` lint doesn't detect comparisons with NaN's if the operands are consts variables so to fix this we evaluate the const variables first before testing for NaN.
34 lines
723 B
Rust
34 lines
723 B
Rust
const NAN_F32: f32 = std::f32::NAN;
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const NAN_F64: f64 = std::f64::NAN;
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#[warn(clippy::cmp_nan)]
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#[allow(clippy::float_cmp, clippy::no_effect, clippy::unnecessary_operation)]
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fn main() {
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let x = 5f32;
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x == std::f32::NAN;
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x != std::f32::NAN;
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x < std::f32::NAN;
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x > std::f32::NAN;
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x <= std::f32::NAN;
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x >= std::f32::NAN;
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x == NAN_F32;
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x != NAN_F32;
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x < NAN_F32;
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x > NAN_F32;
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x <= NAN_F32;
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x >= NAN_F32;
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let y = 0f64;
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y == std::f64::NAN;
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y != std::f64::NAN;
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y < std::f64::NAN;
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y > std::f64::NAN;
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y <= std::f64::NAN;
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y >= std::f64::NAN;
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y == NAN_F64;
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y != NAN_F64;
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y < NAN_F64;
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y > NAN_F64;
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y <= NAN_F64;
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y >= NAN_F64;
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}
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