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C++, Programming

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In which scenario do I use a particular STL container?

I’ve been reading up on STL containers in my book on C++, specifically the section on the STL and its containers. Now I ...

May 30, 2022
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C++, Programming

IT Nursery

Is std::vector copying the objects with a push_back?

After a lot of investigations with valgrind, I’ve made the conclusion that std::vector makes a copy of an object you want to push_back. ...

May 30, 2022
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C++, Programming

IT Nursery

In STL maps, is it better to use map::insert than []?

A while ago, I had a discussion with a colleague about how to insert values in STL maps. I preferred map[key] = value; ...

May 30, 2022
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C++, Programming

IT Nursery

How to initialize std::vector from C-style array?

What is the cheapest way to initialize a std::vector from a C-style array? Example: In the following class, I have a vector, but ...

May 29, 2022
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C++, Programming

IT Nursery

Why are Standard iterator ranges [begin, end) instead of [begin, end]?

Why does the Standard define end() as one past the end, instead of at the actual end? 7 Answers 7

May 29, 2022
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C++, Programming

IT Nursery

Why is std::map implemented as a red-black tree?

Why is std::map implemented as a red-black tree? There are several balanced binary search trees (BSTs) out there. What were design trade-offs in ...

May 28, 2022
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C++, Programming

IT Nursery

Why use non-member begin and end functions in C++11?

Every standard container has a begin and end method for returning iterators for that container. However, C++11 has apparently introduced free functions called ...

May 28, 2022
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C++, Programming

IT Nursery

What is the purpose of std::make_pair vs the constructor of std::pair?

What is the purpose of std::make_pair? Why not just do std::pair<int, char>(0, 'a')? Is there any difference between the two methods? 7 Answers ...

May 27, 2022
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C++, Programming

IT Nursery

Thou shalt not inherit from std::vector

Ok, this is really difficult to confess, but I do have a strong temptation at the moment to inherit from std::vector. I need ...

May 27, 2022
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C++, Programming

IT Nursery

Why is the C++ STL is so heavily based on templates? (and not on interfaces)

I mean, aside from its obligating name (the Standard Template Library)… C++ initially intended to present OOP concepts into C. That is: you ...

May 27, 2022
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