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= help: the trait `Sub<{integer}>` is not implemented for `f64`
= help: the following other types implement trait `Sub<Rhs>`:
- <&'a f32 as Sub<f32>>
<&'a f64 as Sub<f64>>
- <&'a i128 as Sub<i128>>
- <&'a i16 as Sub<i16>>
- <&'a i32 as Sub<i32>>
- <&'a i64 as Sub<i64>>
- <&'a i8 as Sub<i8>>
- <&'a isize as Sub<isize>>
- and 48 others
+ <&f64 as Sub<&f64>>
+ <f64 as Sub<&f64>>
+ <f64 as Sub>
help: consider using a floating-point literal by writing it with `.0`
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LL | 1.0f64 - 1.0