Method decode_utf16_block

src/pugiXML/pugixml.cpp:909–951

		}

		static inline typename Traits::value_type decode_utf16_block(const uint16_t* data, size_t size, typename Traits::value_type result)
		{
			const uint16_t* end = data + size;

			while (data < end)
			{
				uint16_t lead = opt_swap::value ? endian_swap(*data) : *data;

				// U+0000..U+D7FF
				if (lead < 0xD800)
				{
					result = Traits::low(result, lead);
					data += 1;
				}
				// U+E000..U+FFFF
				else if (static_cast<unsigned int>(lead - 0xE000) < 0x2000)
				{
					result = Traits::low(result, lead);
					data += 1;
				}
				// surrogate pair lead
				else if (static_cast<unsigned int>(lead - 0xD800) < 0x400 && data + 1 < end)
				{
					uint16_t next = opt_swap::value ? endian_swap(data[1]) : data[1];

					if (static_cast<unsigned int>(next - 0xDC00) < 0x400)
					{
						result = Traits::high(result, 0x10000 + ((lead & 0x3ff) << 10) + (next & 0x3ff));
						data += 2;
					}
					else
					{
						data += 1;
					}
				}
				else
				{
					data += 1;
				}
			}

			return result;
		}

		static inline typename Traits::value_type decode_utf32_block(const uint32_t* data, size_t size, typename Traits::value_type result)
		{