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Annotation of OpenXM_contrib/pari-2.2/COMPAT, Revision 1.2

1.1       noro        1: This file lists the incompatible changes between Version 2.x and older versions
                      2:
                      3: %%%%%%%%%%%%%%%%%%%%%%%%%%%% VERSION 2.2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
                      4:
                      5: * The calculator GP:
                      6: ====================
1.2     ! noro        7:   - Default args for user defined functions now evaluated when function is
        !             8:     called (used to be: at definition time)
        !             9:     E.g f(x) = local(z = x); z.
        !            10:     Before: f(2) --> x
        !            11:     Now:    f(2) --> 2
        !            12:
        !            13:   - rnfisnorm() input format has changed. Older version was complicated and
        !            14:     only worked if rnfequation(bnf, p, 1)[3] == 0  [otherwise, crash].
        !            15:     Use rnfisnorminit() now.
1.1       noro       16:
                     17: * The library PARI:
                     18: ===================
                     19:   - gsize() renamed to sizedigit()  [conflict with gtk]
                     20:   - hnfhavas removed (didn't work properly, hnflll provides an alternative)
1.2     ! noro       21:   - real zeroes are now coded on 2 words. Beware of constructs like
        !            22:     t = cgetg(lg(x), t_REAL); gaffect(y, t). If x = 0, so will be t
        !            23:   - polgalois(): old format deprecated. New preferred format for result
        !            24:     has 3rd component giving numbering among all transitive subgroups of S_n
        !            25:     [ was ad hoc up to 7, as described above for n >= 8 ]. Old format is
        !            26:     still the default, but will eventually change. Use
        !            27:     default(new_galois_format, 1) or, in library mode, set global variable
        !            28:     new_galois_format to 1 to enable the new format.
        !            29:   - The nf structure output by nfinit has changed:
        !            30:     *) nf.zk is now T2-LLL-reduced, not in HNF wrt the power basis
        !            31:     *) the internal components of nf[5] have changed (MC and T2 not needed
        !            32:        anymore)
        !            33:   - polred & polredabs do not take a 'prec' argument anymore [was unused]
        !            34:   - gentimer / genmsgtimer have been removed. They are superseded by TIMER
        !            35:     and msgTIMER which are fully reentrant and easier to use.
        !            36:   - (undocumented) macros buch[gen | genfu | init | iniftu]
        !            37:   - rnfisnorm() prototype has changed [ + need to call rnfisnorminit first ]
1.1       noro       38:
                     39: %%%%%%%%%%%%%%%%%%%%%%%%%%%% VERSION 2.1 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
                     40:
                     41: * The calculator GP:
                     42: ====================
                     43:  - most function names have changed (see misc/new.dic or use whatnow under GP)
                     44:  - lowercase / uppercase letters distinguished.
                     45:  - the syntax \var = value is not recognized anymore. Use standard
                     46:    metacommands instead.
                     47: (setting the compatibility level "compatible" to 3, with "default" will give
                     48: you those three back).
                     49:
                     50:  - strict parenthesis matching before executing the command
                     51: (set strictmatch to 0 to get old behaviour)
                     52:
                     53:  - functions label / goto have been removed (use break/next/return instead).
                     54:  - conjugation x_ has been removed. '_' can be freely used in identifiers.
                     55:  - \k metacommand removed
                     56:
                     57:  - result history is now cyclic (older results are erased when the maximal
                     58:    size "histsize" is reached).
                     59:  - the Set() function turns objects into strings (so that set functions are
                     60:    able to treat arbitrary objects). Use eval to turn them back to GENs.
                     61:  - the type() function returns a string and not a number.
                     62:  - sum(X=a,b,...,x) yields x if b<a. Analogous statement for prod.
                     63:
                     64: * The library PARI:
                     65: ===================
                     66:  - use symbolic type names (t_INT, etc.). Don't use any explicit type number
                     67:    in your programs since these are liable to change (they have not, but will).
                     68:  - the codewords of GEN objects have a different internal structure. The
                     69:    components should only be accessed through the documented macros. When
                     70:    creating codeword x[1] for the GEN x, use the eval* macros (the set* ones
                     71:    don't fill the codeword completely).
                     72:  - the following constant names have changed ("pari" prepended): C1, C2, C3, K,
                     73:    K1, K2, K4. The constant C31 has disappeared.
                     74:  - prec and defaultpadicprecision are no longer global. The latter has
                     75:    disapeared.
                     76:  - char *pariversion not set anymore (use the macros PARIVERSION/PARIINFO)
                     77:  - LONG_IS_32BIT is never defined (test whether LONG_IS_64BIT is defined
                     78:    or not).
                     79:  - gen2str() renamed to GENtostr().
                     80:  - gitoascii() suppressed, use GENtostr().
                     81:  - init() renamed to pari_init().
                     82:  - the macro mant() has been suppressed.
                     83:  - imprimer() suppressed. output() is now a function and can be used under
                     84:    all debuggers.
                     85:  - the prototypes and behaviour of gredsp() and normalize() have changed.
                     86:    They are not documented anymore.
                     87:  - the install() function has been modified (use codes instead of valence).
                     88:  - gpuigs only has two arguments.
                     89:  - integ now takes two arguments, like deriv.
                     90:  - setrand, getrand, getstack, gettime, glength return a C long, and not a GEN.
                     91:  - pari_randseed no longer global, use setrand/getrand
                     92:  - gerepile(ltop,lbot,0) no longer returns ltop - lbot
                     93:  - nf[5][7] stored in two element form (was Z-basis) for faster inversion
                     94:  - t_POL and t_POLMOD can be freely mixed as long as main variables are the
                     95:    same (result is the expected POLMOD)
                     96: