Template is a confusing and hard features in C++ if you want use it well, and I think it is also one of the reason which causes c++ programmers cannot understand each other. Sometimes the Deduction rule for c++ is really confusing, you don’t understand why you code doesn’t work or why it works. And Since STL heavily uses nesting Templates, both your compiler and your mind suffers from that.
It is 2016, low level coding is not needed anymore. We have programming
languages like javascript and python. When people code everything with a class
and related methods. But do you remember we have a programming language called
C? When we had no class, templates, operator-override or implicit constructor at
esthat time. You actually know what are doing with C, no magic!
I claim no expert to programming, since I only have a four-year-old programming
life. But even you are inexperienced like me, you should still be able to code
some thing in C. IT IS fatigue to code in C, you have no standard containers to
rely on, you spend 10 hours to build a perfect deque data type which works on
amortized O(1) complexity and has no memory leaks before you are able to work on
your project. Awesome!!! But why? Why try to build a huge robust data structure
in a non-OOP language? Instead of trying simulate constructors and destructors,
you could always use a double pointer to do the job. Have you ever seen Linus
Torvalds’s double pointer code? It removes on special case where you would make
mistakes.