This is continuation of posts:  http://cppcodereviewers.com/bitwise-operations-part-2-first-trivial-approach/  http://cppcodereviewers.com/bitwise-operations/ Challenge: Decode raw bytes Decode data from raw bytes to some data structure which is easy to use and is resource friendly. You get  n  bytes of data in which in each byte there is  0bFDDDFDDD  where  F  is some flag and  DDD  represents data. Lets assume you get pointer to data… Read More


This is continuation of post: http://cppcodereviewers.com/bitwise-operations/ Continuation of this topic is here: http://cppcodereviewers.com/bitwise-operations-part-3-save-resources/ Challenge: Decode raw bytes Decode data from raw bytes to some data structure which is easy to use and is resource friendly. You get  n  bytes of data in which in each byte there is  0bFDDDFDDD  where  F  is some flag and  DDD  represents data. Lets assume you… Read More


Edit: Thanks to comments of Mateusz and A I have corrected code in this post (copy & paste error) Covariant Return Types is language feature which allows you to change return type of your virtual function to covariant type ie. pointer to derived class instead of pointer to base class – see example below:

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Junior task – sum of integers in vector Assume that we have vector of integers ie.

and we want to write function which will sum up all its elements.

In which cases it will work?

Middle task – sum of elements in vector no matter what type Let’s make it more generic… Read More


Problem I have been talking with my colleague about traversing std::map and we both agree that using first-second attributes as a key-value pair is not the most readable solution.

It is not so bad but we would like to write something like this:

Solution I found a way of writing code similar to… Read More