By Bruce Sutherland
C++ Recipes: A Problem-Solution Approach is a convenient code cookbook reference advisor that conceal the newest C++ 14 in addition to a number of the code templates to be had within the most modern normal Template Library (STL).
In this useful reference, you can find numbers, strings, dates, instances, periods, exceptions, streams, flows, guidelines and extra. additionally, you will see quite a few code samples, templates for C++ algorithms, parallel processing, multithreading and numerical methods. those have many functions together with online game improvement, mammoth facts analytics, monetary engineering and research, company purposes and extra. A wealth of STL templates on functionality gadgets, adapters, allocators, and extensions also are on hand.
This is a "must have", modern reference to your technical library.
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Extra resources for C++ Recipes: A Problem-Solution Approach
Output from Several Runs of Listing 2-27 Figure 2-7 shows that the sleep_for method isn’t 100% accurate however it is reasonably close to 5000ms with each run. You can now see how you can use the now method to compare two time_points and it’s not much more of a stretch to imagine that you can create an if statement that only executes once a certain amount of time has passed. Recipe 2-8. Understanding lvalue and rvalue References Problem C++ contains a distinction between an lvalue reference and an rvalue reference.
The trailing return type can be deduced using decltype however this leads to overly verbose code. C++14 rectifies this situation by allowing auto to be used on functions without having the trailing return type even when used with templates as you can see in Listing 2-14. Listing 2-14. Using auto to Deduce Return Type on a Template Function #include
Figure 2-14 shows that the weak_ptr cannot get a valid shared_ptr after this has occurred. Figure 2-14. A weak_ptr Failing to lock a Deleted Object 58 Chapter 3 Working with Text Working with text will be one of the most regular tasks a C++ programmer will have to deal with. You are likely to need to read in user input, write out messages to the user or writing logging functionality for other programmers to more easily debug running programs. Unfortunately working with text is not an easy or straight-forward task.