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Add impl From<Ordering> for i32 #89491

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Add impl From<Ordering> for i32 #89491

wants to merge 1 commit into from

Commits on Oct 3, 2021

  1. Add impl From<Ordering> for i32 

    This commit adds a first-class `From` conversion of `Ordering` into
`i32`.

`Ordering` is defined to be compatible with the return types of the
various `...cmp...` routines in the C standard library, but the only way
to convert an `Ordering` to an `i32` is with a non-obvious `as` cast.

This commit adds a proper API for doing this and hides a "scary" `as`
cast inside the `core` library.
    @lopopolo
    lopopolo committed Oct 3, 2021
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