Esempi in C++ (Cpp) per picosat_adjust

Esempio n. 1

File: libpicosat_stubs.c Progetto: abate/ocaml-picosat

CAMLprim value caml_picosat_adjust(value n) {
    CAMLparam1 (n);
    picosat_adjust(Int_val(n));
    CAMLreturn(Val_unit);
}

Esempio n. 2

File: app.c Progetto: CZ-NIC/turris-updater

static const char *
parse (PicoSAT * picosat, int force)
{
  int ch, sign, lit, vars, clauses;

  lineno = 1;
  inputid = fileno (input);

SKIP_COMMENTS:
  ch = next ();
  if (ch == 'c')
    {
      while ((ch = next ()) != EOF && ch != '\n')
	;
      goto SKIP_COMMENTS;
    }

  if (isspace (ch))
    goto SKIP_COMMENTS;

  if (ch != 'p')
INVALID_HEADER:
    return "missing or invalid 'p cnf <variables> <clauses>' header";

  if (!isspace (next ()))
    goto INVALID_HEADER;

  while (isspace (ch = next ()))
    ;

  if (ch != 'c' || next () != 'n' || next () != 'f' || !isspace (next ()))
    goto INVALID_HEADER;

  while (isspace (ch = next ()))
    ;
    
  if (!isdigit (ch))
    goto INVALID_HEADER;

  vars = ch - '0';
  while (isdigit (ch = next ()))
    vars = 10 * vars + (ch - '0');

  if (!isspace (ch))
    goto INVALID_HEADER;

  while (isspace (ch = next ()))
    ;

  if (!isdigit (ch))
    goto INVALID_HEADER;

  clauses = ch - '0';
  while (isdigit (ch = next ()))
    clauses = 10 * clauses + (ch - '0');

  if (!isspace (ch) && ch != '\n' )
    goto INVALID_HEADER;

  if (verbose)
    {
      fprintf (output, "c parsed header 'p cnf %d %d'\n", vars, clauses);
      fflush (output);
    }

  picosat_adjust (picosat, vars);

  if (incremental_rup_file)
    picosat_set_incremental_rup_file (picosat, incremental_rup_file, vars, clauses);

  lit = 0;
READ_LITERAL:
  ch = next ();

  if (ch == 'c')
    {
      while ((ch = next ()) != EOF && ch != '\n')
	;
      goto READ_LITERAL;
    }

  if (ch == EOF)
    {
      if (lit)
	return "trailing 0 missing";

      if (clauses && !force)
	return "clause missing";

      return 0;
    }

  if (isspace (ch))
    goto READ_LITERAL;

  sign = 1;
  if (ch == '-')
    {
      sign = -1;
      ch = next ();
    }

  if (!isdigit (ch))
    return "expected number";

  lit = ch - '0';
  while (isdigit (ch = next ()))
    lit = 10 * lit + (ch - '0');

  if (!clauses && !force)
    return "too many clauses";

  if (lit)
    {
      if (lit > vars && !force)
	return "maximal variable index exceeded";

      lit *= sign;
    }
  else
    clauses--;

  picosat_add (picosat, lit);

  goto READ_LITERAL;
}