Ejemplos de ObNumber::round_to en C++ (Cpp)

Ejemplo n.º 1

Archivo: ob_object.cpp Proyecto: Alibaba-boonya/oceanbase

int ObObj::set_decimal(const ObNumber &num, int8_t precision, int8_t scale, bool is_add /*= false*/)
{
  int ret = OB_SUCCESS;
  set_flag(is_add);
  meta_.type_ = ObDecimalType;
  meta_.dec_precision_ = static_cast<uint8_t>(precision) & META_PREC_MASK;
  meta_.dec_scale_ = static_cast<uint8_t>(scale) & META_SCALE_MASK;
  int8_t nwords = 0;
  int8_t vscale = 0;
  uint32_t words[ObNumber::MAX_NWORDS];
  ret = num.round_to(precision, scale, nwords, vscale, words);
  if (OB_SUCCESS == ret)
  {
    if (nwords <= 3)
    {
      meta_.dec_nwords_ = static_cast<uint8_t>(nwords - 1) & META_NWORDS_MASK;
      meta_.dec_vscale_ = static_cast<uint8_t>(vscale) & META_VSCALE_MASK;
      memcpy(reinterpret_cast<uint32_t*>(&val_len_), words, sizeof(uint32_t)*nwords);
    }
    else
    {
      //@todo, use ob_pool.h to allocate memory
      ret = OB_NOT_IMPLEMENT;
    }
  }
  return ret;
}