By Adrien Hamelin | Oct 15, 2018 12:27 PM | Tags: c++11 basics
Quick A: The unordered_* containers have average O(1) complexity.
Recently on SO:
data structure with O(1) search time complexity in c++
What you want is C++11's std::unordered_map, with an average access time of O(1) and a worst case of O(n).
By Adrien Hamelin | Sep 18, 2018 12:31 PM | Tags: basics
Using the std to remove.
How to Remove Elements from a Sequence Container in C++
by Jonathan Boccara
From the article:
As part of the STL Learning Resource, we’re tackling today the STL algorithms that remove elements from a collection.
Removing an element from a C++ collection can’t be that complicated, can it?
Well, how can I put it… It has a rich complexity, let’s say.
Ok, maybe it’s a little complicated.
We will cover this topic in a series of four articles:
- How to Remove Elements from a Sequence Container (vector, string, deque, list)
- How to Remove Pointers from a Vector in C++ (co-written with Gaurav Sehgal)
- How to Remove Elements from an Associative Container (maps and sets)
- How to Remove Duplicates from an Associative Container
By Adrien Hamelin | Sep 3, 2018 08:03 AM | Tags: basics
Quick A: yes
Recently on SO:
Is 'auto const' and 'const auto' the same?
The const qualifier applies to the type to the immediate left unless there is nothing to the left then it applies to the type to the immediate right. So yup it's the same.
By Jason Turner | Jul 23, 2018 10:31 AM | Tags: performance efficiency basics
Episode 125 of C++ Weekly.
The Optimal Way To Return From A Function
by Jason Turner
About the show:
In this episode of C++ Weekly Jason investigates the possible methods that one of two string values might be returned from a function. Which option is best? Which option can the compiler optimize the most? Do we take one return path or multiple return paths? Should a ternary be used?
By Jordi Mon Companys | Jul 9, 2018 01:43 PM | Tags: community basics
Alberto García Márquez will guide us through his lib Calculate and we will also elaborate on the use of some clang tools for refactoring, code format and so on at an entry level.
C++ Meetup Madrid: Calculate: Math Expression Parser Engine
Come join us!
By Adrien Hamelin | Jun 12, 2018 12:31 PM | Tags: c++17 basics
Spreading the knowledge.
Modern C++ Features – std::optional
by Arne Mertz
From the article:
Sometimes we want to express the state of “nothing meaningful” instead of a value. This is the use case for C++17’s std::optional...
By Adrien Hamelin | Jun 8, 2018 12:28 PM | Tags: c++17 basics
Simple and useful.
C++17: std::string_view
by Marc Gregoire
From the article:
If you have to write a function that accepts a string, what type of parameter will you use?
By Adrien Hamelin | Jun 6, 2018 11:43 AM | Tags: c++17 basics
Simple and useful.
C++17: Fallthrough in switch statements
by Marc Gregoire
From the article:
A C++ switch statement allows execution to fall through from one case to the next case when a break statement is missing...
By Meeting C++ | Jun 6, 2018 07:19 AM | Tags: speaking meetingcpp community basics
As it was a big success last year, Meeting C++ has again a track for new speakers, and is looking for folks which like to submit their talk ideas to the conference!
The call for Talks for Meeting C++ 2018 ends on June 17th.
Call for a more diverse program at Meeting C++ 2018!
by Jens Weller
From the article:
Last years track for new speakers was a great success, so Meeting C++ will dedicate a track to this now in every year. So I'd like to reach out to the C++ Community, who do you think has something interesting to say about C++ and could start speaking at this years Meeting C++?
By Adrien Hamelin | Jun 4, 2018 01:38 PM | Tags: c++17 basics
Do you know it?
C++17: std::byte
by Marc Gregoire
From the article:
C++17 introduced a new type: std::byte...