Fedora 21 Update: ocaml-zarith-1.3-1.fc21

updates at fedoraproject.org updates at fedoraproject.org
Sat Nov 1 16:50:03 UTC 2014

Fedora Update Notification
2014-10-16 16:49:48

Name        : ocaml-zarith
Product     : Fedora 21
Version     : 1.3
Release     : 1.fc21
URL         : http://forge.ocamlcore.org/projects/zarith
Summary     : OCaml interface to GMP
Description :
This library implements arithmetic and logical operations over
arbitrary-precision integers.

The module is simply named "Z".  Its interface is similar to that of the
Int32, Int64 and Nativeint modules from the OCaml standard library, with
some additional functions.  See the file z.mlip for documentation.

The implementation uses GMP (the GNU Multiple Precision arithmetic
library) to compute over big integers.  However, small integers are
represented as unboxed Caml integers, to save space and improve
performance.  Big integers are allocated in the Caml heap, bypassing
GMP's memory management and achieving better GC behavior than e.g. the
MLGMP library.  Computations on small integers use a special, faster
path (coded in assembly for some platforms and functions) eschewing
calls to GMP, while computations on large integers use the low-level
MPN functions from GMP.

Arbitrary-precision integers can be compared correctly using OCaml's
polymorphic comparison operators (=, <, >, etc.).

Additional features include:
- a module Q for rationals, built on top of Z (see q.mli)
- a compatibility layer Big_int_Z that implements the same API as Big_int,
  but uses Z internally

Update Information:

The alt-ergo, frama-c, ocaml-tplib, and why3 builds are simply rebuilds for ocaml-zarith 1.3.  The upstream notes on this version of ocaml-zarith are:
- Fixed inefficiencies in asm fast path for ARM.
- Revised detection of NaNs and infinities in Z.of_float
- Suppress the redundant fast paths written in C if a corresponding fast path exists in asm.
- Use <stdint.h> to ensure compatibility with OCaml 4.02.
- More prudent implementation of Z.of_int, avoids GC problem with OCaml < 4.02 (PR#6501 in the OCaml bug tracker).
- PR#1429: of_string accepts 'a' in base 10.
- Macro change to avoid compiler warnings on unused variables.

This update can be installed with the "yum" update program.  Use
su -c 'yum update ocaml-zarith' at the command line.
For more information, refer to "Managing Software with yum",
available at http://docs.fedoraproject.org/yum/.

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