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A comment on Go 1.21 may have a clear(x) builtin. Parent comment

Re:Go 1.21 may have a clear(x) builtin by duped on Saturday November 19, 2022 @04:43PM (#33675093)
My point is sometimes I want NaN to compare with NaN as true when I'm using a float as a key in a table.
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Re:Go 1.21 may have a clear(x) builtin by tialaramex on Saturday November 19, 2022 @05:30PM (#33675511)
You are welcome to build a type which has this property and declares that it is Eq.

But Rust's built-in floating point types f32 and 64 do not have that property.

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