Here is a list of all documented files with brief descriptions:

include
protozero
basic_pbf_builder.hpp	Contains the basic_pbf_builder template class
basic_pbf_writer.hpp	Contains the basic_pbf_writer template class
buffer_fixed.hpp	Contains the fixed_size_buffer_adaptor class
buffer_string.hpp	Contains the customization points for buffer implementation based on std::string
buffer_tmpl.hpp	Contains the customization points for buffer implementations
buffer_vector.hpp	Contains the customization points for buffer implementation based on std::vector<char>
byteswap.hpp	Contains functions to swap bytes in values (for different endianness)
config.hpp	Contains macro checks for different configurations
data_view.hpp	Contains the implementation of the data_view class
exception.hpp	Contains the exceptions used in the protozero library
iterators.hpp	Contains the iterators for access to packed repeated fields
pbf_builder.hpp	Contains the pbf_builder template class
pbf_message.hpp	Contains the pbf_message template class
pbf_reader.hpp	Contains the pbf_reader class
pbf_writer.hpp	Contains the pbf_writer class
types.hpp	Contains the declaration of low-level types used in the pbf format
varint.hpp	Contains low-level varint and zigzag encoding and decoding functions
version.hpp	Contains macros defining the protozero version