Quelle snippets.c Sprache: C

/**************************************************************************

snippets.c

Bits of code that, at one time or another, were in ACE.

**************************************************************************/

/******************************************************************
Mode 5 in an experimental mode where we specify the percentage of
deductions to be stacked via dedper.  So we will, in general, run
an RA phase at the end of the enumeration.  If the number of cosets
doesn't blow out to badly, then we could achieve a significant
speed-up; without the complications of PACE's parallelisation.

This code might more properly be in PACE, which is intended as a
test-bed for various dedn handling strategies (incl the `parallel'
stategy!).

Note that we also need to declare dedper in al0.h, define it in
enum.c, initialise it, and print it out in, eg, `dump:0;' &
`sr:1;'.
******************************************************************/

/* The SAVED macro for dedmode #5 */

#define SAVED(cos,gen)                               \
  INCR(xsaved);                                      \
  if (dedmode == 5 && ((1 + (rand()%100)) > dedper)) \
    { disded = TRUE; }        \
  else                        \
    {                         \
    if (topded >= dedsiz-1)   \
      {                       \
      INCR(sdoflow);          \
      switch(dedmode)         \
        {                     \
        case 3:               \
          disded = TRUE;      \
          topded = -1;        \
          break;              \
        case 4:               \
        case 5:               \
          al0_dedn(cos,gen);  \
          break;              \
        default:              \
          disded = TRUE;      \
          break;              \
        }                     \
      }                       \
    else                      \
      {                       \
      dedrow[++topded] = cos; \
      dedcol[topded]   = gen; \
      }                       \
    }                         \
  SAVED00;

/* The `dmod' parsing */

    if (al2_match("ded mo[de]") || al2_match("dmod[e]"))
      {
      al2_readia();
      al2_endcmd();

      if (intcnt == 0)
        {
        fprintf(fop, "deduction mode = %d", dedmode);
        if (dedmode == 5)
          { fprintf(fop, " (%d%%)", dedper); }
        fprintf(fop, "\n");
        }
      else if (intcnt == 1)
        {
        if (intarr[0] < 0 || intarr[0] > 5)
          { al2_continue("bad mode parameter"); }
        dedmode = intarr[0];
        dedper  = 50;   /* default is 1/2 the dedns */
        }
      else if (intcnt == 2)
        {
        if (intarr[0] != 5)
          { al2_continue("too many parameters"); }
        if (intarr[1] < 0 || intarr[1] > 100)
          { al2_continue("bad percentage parameter"); }
        dedmode = intarr[0];
        dedper  = intarr[1];
        }
      else
        { al2_continue("bad parameter count"); }

      continue;
      }

/******************************************************************
******************************************************************/

/******************************************************************
******************************************************************/

/******************************************************************
******************************************************************/

/******************************************************************
******************************************************************/

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Beweissystem der NASA

Beweissystem Isabelle

NIST Cobol Testsuite

Cephes Mathematical Library

Wiener Entwicklungsmethode

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