istream_block_iterator

Although c++ is already imbued with the kitchen sink, it seems to lack a chunked character iterator for input streams. Thus, I present an implementation of a 'chunked' stream iterator with configurable chunk size n

Example

given an input stream, split it into a vector of strings at most 3 in length

constexpr auto N = 3;
const auto example = "AAABBBCCC";
std::istringstream ss(example);
std::vector<std::string> blocks{};
std::copy(istream_block_iterator<std::string>(ss, N), istream_block_iterator<std::string>(),std::back_inserter(blocks));

blocks now has three entries, "AAA", "BBB" and "CCC".