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Annotation of OpenXM/src/kan96xx/gmp-2.0.2/NEWS, Revision 1.1

1.1     ! maekawa     1: NOTEWORTHY CHANGES IN GNU MP IN VERSION 2
        !             2:
        !             3: * Division routines in the mpz class have changed.  There are three classes of
        !             4:   functions, that rounds the quotient to -infinity, 0, and +infinity,
        !             5:   respectively.  The first class of functions have names that begin with
        !             6:   mpz_fdiv (f is short for floor), the second class' names begin with mpz_tdiv
        !             7:   (t is short for trunc), and the third class' names begin with mpz_cdiv (c is
        !             8:   short for ceil).
        !             9:
        !            10:   The old division routines beginning with mpz_m are similar to the new
        !            11:   mpz_fdiv, with the exception that some of the new functions return useful
        !            12:   values.
        !            13:
        !            14:   The old function names can still be used.  All the old functions names will
        !            15:   now do floor division, not trunc division as some of them used to.  This was
        !            16:   changed to make the functions more compatible with common mathematical
        !            17:   practice.
        !            18:
        !            19:   The mpz_mod and mpz_mod_ui functions now compute the mathematical mod
        !            20:   function.  I.e., the sign of the 2nd argument is ignored.
        !            21:
        !            22: * The mpq assignment functions do not canonicalize their results.  A new
        !            23:   function, mpq_canonicalize must be called by the user if the result is not
        !            24:   known to be canonical.
        !            25: * The mpn functions are now documented.  These functions are intended for
        !            26:   very time critical applications, or applications that need full control over
        !            27:   memory allocation.  Note that the mpn interface is irregular and hard to
        !            28:   use.
        !            29: * New functions for arbitrary precision floating point arithmetic.  Names
        !            30:   begin with `mpf_'.  Associated type mpf_t.
        !            31: * New and improved mpz functions, including much faster GCD, fast exact
        !            32:   division (mpz_divexact), bit scan (mpz_scan0 and mpz_scan1), and number
        !            33:   theoretical functions like Jacobi (mpz_jacobi) and multiplicative inverse
        !            34:   (mpz_invert).
        !            35: * New variable types (mpz_t and mpq_t) are available that makes syntax of
        !            36:   mpz and mpq calls nicer (no need for & before variables).  The MP_INT and
        !            37:   MP_RAT types are still available for compatibility.
        !            38: * Uses GNU configure.  This makes it possible to choose target architecture
        !            39:   and CPU variant, and to compile into a separate object directory.
        !            40: * Carefully optimized assembly for important inner loops.  Support for DEC
        !            41:   Alpha, Amd 29000, HPPA 1.0 and 1.1, Intel pentium and generic x86, Intel
        !            42:   i960, Motorola MC68000, MC68020, MC88100, and MC88110, Motorola/IBM
        !            43:   PowerPC, National NS32000, IBM POWER, MIPS R3000, R4000, SPARCv7,
        !            44:   SuperSPARC, generic SPARCv8, and DEC VAX.  Some support also for ARM,
        !            45:   Clipper, IBM ROMP (RT), and Pyramid AP/XP.
        !            46: * Faster.  Thanks to the assembler code, new algorithms, and general tuning.
        !            47:   In particular, the speed on machines without GCC is improved.
        !            48: * Support for machines without alloca.
        !            49: * Now under the LGPL.
        !            50:
        !            51: INCOMPATIBILITIES BETWEEN GMP 1 AND GMP 2
        !            52:
        !            53: * mpq assignment functions do not canonicalize their results.
        !            54: * mpz division functions round differently.
        !            55: * mpz mod functions now really compute mod.
        !            56: * mpz_powm and mpz_powm_ui now really use mod for reduction.