C++ (Cpp) _bitlength Examples

Example #1

File: floatlogic.c Project: ruphy/speedcrunch

char
_floatnum2logic(
  t_longint* longint,
  cfloatnum x)
{
  floatstruct tmp;
  int digits;

  digits = float_getexponent(x)+1;
  if (float_iszero(x) || digits <= 0)
  {
    longint->length = 1;
    longint->value[0] = 0;
  }
  else
  {
    if (digits > MATHPRECISION)
      return 0;

    float_create(&tmp);
    /* floatnum2longint rounds, we have to truncate first */
    float_copy(&tmp, x, digits);
    if (float_getsign(x) < 0)
      float_add(&tmp, &tmp, &c1, EXACT);
    _floatnum2longint(longint, &tmp);
    float_free(&tmp);
    if (_bitlength(longint) > LOGICRANGE)
      return 0;
  }
  _zeroextend(longint);
  if (float_getsign(x) < 0)
    _not(longint);
  return 1;
}

Example #2

File: floatconvert.c Project: Tey/speedcrunch-nightlies

static void
_setlongintdesc(
  p_ext_seq_desc n,
  t_longint* l,
  signed char base)
{
  int lg;

  n->seq.base = base;
  lg = lgbase(base);
  n->seq.digits = (_bitlength(l) + lg - 1) / lg;
  n->seq.leadingSignDigits = 0;
  n->seq.trailing0 = _lastnonzerobit(l) / lg;
  n->seq.param = l;
  n->getdigit = _getlongintdigit;
}