Sage-Tips

Why C++ templates are bad?

Can get complicated quickly if one isn’t careful. Most compilers give cryptic error messages. It can be difficult to use/debug highly templated code. Have at least one syntactic quirk ( the >> operator can interfere with templates)

Are C++ templates useful?

Advantages. C++ templates enable you to define a family of functions or classes that can operate on different types of information. For example, you can use function templates to create a set of functions that apply the same algorithm to different data types.

How do you make a book in C++?

5 Best C++ Programming Books (Recommended by the Programming Community)

1. C++ Primer (5th Edition)
2. Effective Modern C++: 42 Specific Ways to Improve Your Use of C++11 and C++14.
3. The C++ Programming Language (4th Edition)
4. Accelerated C++: Practical Programming by Example.
5. Programming: Principles and Practice Using C++

Are C++ templates fast?

Compared to hand-written code written precisely for that scenario, there is zero difference. So the nice thing about templates isn’t that they are “faster” than what you could do otherwise, but that they are “as fast” as hand-written code, while also being generic and reusable.

Is Big C++ a good book?

It’s certainly a very good book and might still be worth a read if you can spare the time, but quite old and not up-to-date with current C++. Large Scale C++ Software Design (John Lakos) Lakos explains techniques to manage very big C++ software projects. Certainly, a good read, if it only was up to date.

How do you code efficiently in C++?

Summary of Strategies for Optimizing C++ Code

1. Use a Better Compiler, Use Your Compiler Better. C++ compilers are complex software artifacts.
2. Use Better Algorithms.
3. Use Better Libraries.
4. Reduce Memory Allocation and Copying.
5. Remove Computation.
6. Use Better Data Structures.
7. Increase Concurrency.
8. Optimize Memory Management.

Are templates type safe?

C++ templates are checked at least twice. First, when a template is declared & defined, second when it is instantiated. After a template successfully instantiated it is in a type safe state.

How do templates allow you to be more efficient with your time C++?

So, templates give you more inlining because there are more copies of the sort code, each of which can inline a different comparator. Inlining is quite a good optimization, and sort routines do a lot of comparisons, so you can often measure std::sort running faster than an equivalent qsort .

What is template metaprogramming in C++?

C++ template metaprogramming gives you all kind of new capabilities like passing types or list of types as arguments etc. Most of these capabilities are present in dynamically typed languages like python, with nicer syntax. – Florian Bösch Sep 23 ’08 at 11:04

What are the best resources to learn modern C++ programming?

Andrei Alexandrescu’s Modern C++ Designbook covers a lot of this and other tricks for speedy and efficient modern C++ code and is the basis for the Lokilibrary. Also worth mentioning is the Boostlibraries, which heavily use these techniques and are usually of very high quality to learn from (although some are quite dense).

What are some of the best books on C++ design?

The STL occupies a sizeable part of the book. It also covers a lot of other topics, namespace and inheritance amongst others, and on their more advanced aspects. Andrei Alexandrescu’s Modern C++ Design is my all time favourite C++ book. Its purpose is to implement design patterns, by using templates. But it does much, much more.

What is static metaprogramming and how does it work?

Static metaprogramming (aka “template metaprogramming”) is a great C++ technique that allows the execution of programs at compile-time. A light bulb went off in my head as soon as I read this canonical metaprogramming example: