Method get_character

Source/external/json.hpp:6187–6196

std::istream/std::streambuf use std::char_traits ::to_int_type, to ensure that std::char_traits ::eof() and the character 0xFF do not end up as the same value, e.g. 0xFFFFFFFF.

	// ensure that std::char_traits<char>::eof() and the character 0xFF do not
	// end up as the same value, e.g. 0xFFFFFFFF.
	std::char_traits<char>::int_type get_character()
	{
		auto res = sb->sbumpc();
		// set eof manually, as we don't use the istream interface.
		if (JSON_HEDLEY_UNLIKELY(res == std::char_traits<char>::eof()))
		{
			is->clear(is->rdstate() | std::ios::eofbit);
		}
		return res;
	}

  private:
	/// the associated input stream