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//! Miscellaneous utilities
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use crate::internal_prelude::*;

            

        

            

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/// What `RangeInclusive::map` ought to be

            

        

            

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///

            

        

            

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/// Open-coding this at the call site would risk accidental change of the range type,

            

        

            

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/// changing inclusiveness, etc.  This function has the same range type as argument and return.

            

        

            

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pub(crate) fn map_range<T, U>(

            

        

            

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    r: &RangeInclusive<T>,

            

        

            

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    mut f: impl FnMut(&T) -> U,

            

        

            

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) -> RangeInclusive<U> {

            

        

            

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    f(r.start())..=f(r.end())

            

        

            

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}