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instead of recursive make
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C functions were used for floating-point arithmetic operations, by
fear of double rounding that could happen on old x87 on 32 bits
architecture. This commit uses OCaml floating-point operations on 64
bits architectures.
The following snippet is made 17% faster by this commit.
From Coq Require Import Int63 BinPos PrimFloat.
Definition foo n :=
let eps := sub (next_up one) one in
Pos.iter (fun x => add x eps) two n.
Time Eval native_compute in foo 1000000000.
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The will make it possible to put a VsCoq toplevel in `ide/vscoq`.
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Add headers to a few files which were missing them.
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Currently, `.v` under the `Coq.` prefix are found in both `theories`
and `plugins`. Usually these two directories are merged by special
loadpath code that allows double-binding of the prefix.
This adds some complexity to the build and loadpath system; and in
particular, it prevents from handling the `Coq.*` prefix in the
simple, `-R theories Coq` standard way.
We thus move all `.v` files to theories, leaving `plugins` as an
OCaml-only directory, and modify accordingly the loadpath / build
infrastructure.
Note that in general `plugins/foo/Foo.v` was not self-contained, in
the sense that it depended on files in `theories` and files in
`theories` depended on it; moreover, Coq saw all these files as
belonging to the same namespace so it didn't really care where they
lived.
This could also imply a performance gain as we now effectively
traverse less directories when locating a library.
See also discussion in #10003
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PR #11267 reverted commit d21e17ac99dfb2008f2e2bfdb373413490d1ffc7 (of
PR #10695) by error, this reinstates it.
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Fix #11266
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Picked from #8729. This should help preserve the history better when
we split.
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