Method TryGetInteger

libraries/lib-xml/XMLAttributeValueView.cpp:318–346

template <typename ResultType>
bool XMLAttributeValueView::TryGetInteger(ResultType& value) const noexcept
{
   static_assert(std::is_integral_v<ResultType>);

   if (mType == Type::SignedInteger)
   {
      return CheckInteger(value, mInteger);
   }
   else if (mType == Type::UnsignedInteger)
   {
      return CheckInteger(value, static_cast<uint64_t>(mInteger));
   }
   else if (mType == Type::StringView)
   {
      const char* end = mStringView.Data + mStringView.Length;

      ResultType tempValue = {};

      const auto result = FromChars(mStringView.Data, end, tempValue);

      if (result.ec == std::errc() && result.ptr == end)
      {
         value = tempValue;
         return true;
      }
   }

   return false;
}