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doc/go1.18: mention new x/exp generic packages
Change-Id: I119cfb1a0da9af89ced78935b8fcdfdb8d9b4ab6 Reviewed-on: https://go-review.googlesource.com/c/go/+/383794 Trust: Ian Lance Taylor <iant@golang.org> Reviewed-by: Robert Griesemer <gri@golang.org>
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@ -90,6 +90,39 @@ Do not send CLs removing the interior tags from such phrases.
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</li>
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</ul>
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<p>
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There are three experimental packages using generics that may be
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useful.
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These packages are in x/exp repository; their API is not covered by
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the Go 1 guarantee and may change as we gain more experience with
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generics.
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<dl>
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<dt><a href="https://pkg.go.dev/golang.org/x/exp/constraints"><code>golang.org/x/exp/constraints</code></a></dt>
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<dd>
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<p>
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Constraints that are useful for generic code, such as
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<a href="https://pkg.go.dev/golang.org/x/exp/constraints#Ordered"><code>constraints.Ordered</code></a>.
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</p>
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</dd>
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<dt><a href="https://pkg.go.dev/golang.org/x/exp/slices"><code>golang.org/x/exp/slices</code></a></dt>
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<dd>
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<p>
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A collection of generic functions that operate on slices of
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any element type.
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</p>
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</dd>
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<dt><a href="https://pkg.go.dev/golang.org/x/exp/maps"><code>golang.org/x/exp/maps</code></a></dt>
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<dd>
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<p>
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A collection of generic functions that operate on maps of
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any key or element type.
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</p>
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</dd>
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</dl>
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</p>
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<p>
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The current generics implementation has the following limitations:
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<ul>
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