Function getBTyPortableFormatDescriptor

bindings/python/cobj.cpp:374–417

  return "P";
}
std::string getBTyPortableFormatDescriptor(BasicType const* BTy)
{
  // We only used defined formats that have a standard size (see
  // https://docs.python.org/2/library/struct.html)
  const auto BKind = BTy->getBasicKind();
  const auto Size = BTy->getSize();
  switch (BKind) {
    case BasicType::Float:
    case BasicType::Double: {
      if (Size == 4) return "f";
      if (Size == 8) return "d";
      break;
    }
#define HANDLE_BTY(CTy, F)\
    case BasicType::getKind<CTy>():\
      return F;
    HANDLE_BTY(uint8_t, "B")
    HANDLE_BTY(int8_t, "b")
    HANDLE_BTY(uint16_t, "H")
    HANDLE_BTY(int16_t, "h")
    HANDLE_BTY(uint32_t, "I")
    HANDLE_BTY(int32_t, "i")
    HANDLE_BTY(uint64_t, "Q")
    HANDLE_BTY(int64_t, "q")
    default:
      break;
  }

  const bool IsSigned = BTy->isSignedInteger();
  switch (Size) {
    case 1:
      return IsSigned ? "b":"B";
    case 2:
      return IsSigned ? "h":"H";
    case 4:
      return IsSigned ? "i":"I";
    case 8:
      return IsSigned ? "q":"Q";
    default:
      break;
  }

  return std::to_string(Size) + "B";
}

std::string getPtrPortableFormatDescriptor(PointerType const* PTy)
{