Parse CSV File With Boost Tokenizer In C++

Often data required by application are available in CSV formatted files. In c++ it is easy to read file line by line. All that is left is to extract fields from each line and insert them into datastructure stored in memory. Boost Tokenizer is a package that provides a way to easilly break a string or sequence of characters into sequence of tokens, and provides standard iterator interface to traverse the tokens. I will show simple way of using Boost Tokenizer to parse data from CSV file.

Representing bidirectional relationship with boost::bimap

In C++, std maps and hash-maps are perfect choice for storing key-value pairs of elements. We use key to lookup related value(s). Quite often I manipulate key-value relationships where both keys and values are unique and usually there is a one-to-one relationships between keys and values. Example of this is a translation tables between two sets of symbols (strings).

I ended up coding my own class with two internal maps, or hash-maps, plus getters and setters to populate and access values for two way lookups.

A while ago I stumbled upon boost's bimap. Here is an example how to use it.