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Michael Snoyman 2015-02-26 13:39:19 +02:00
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@ -98,6 +98,11 @@ they're *all* defined as `let x = x in x`. When GHC reaches a call to one of
these primops, it automatically replaces it with the real implementation for
you, which will be some assembly code, LLVM code, or something similar.
You may be wondering: why bother with this dummy implementation at all? The
sole reason is to give Haddock documentation for the primops a place to live.
GHC.Prim is processed by Haddock more or less like any other module; but is
effectively ignored by GHC itself.
Why do all of these functions end in a `#`? That's called the magic hash
(enabled by the `MagicHash` language extension), and it is a convention to
distinguish boxed and unboxed types and operations. Which, of course, brings us