C++ Archives - Page 45 of 68

Why should I not #include ?

I posted a question with my code whose only #include directive was the following: #include <bits/stdc++.h> My teacher told me to do this, ...

May 9, 2022
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Can I call a base class’s virtual function if I’m overriding it?

Say I have classes Foo and Bar set up like this: class Foo { public: int x; virtual void printStuff() { std::cout << ...

May 9, 2022
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Is the practice of returning a C++ reference variable evil?

This is a little subjective I think; I’m not sure if the opinion will be unanimous (I’ve seen a lot of code snippets ...

May 9, 2022
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What are inline namespaces for?

C++11 allows inline namespaces, all members of which are also automatically in the enclosing namespace. I cannot think of any useful application of ...

May 9, 2022
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How can I iterate over an enum?

I just noticed that you can not use standard math operators on an enum such as ++ or +=. So what is the ...

May 9, 2022
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What is meant by Resource Acquisition is Initialization (RAII)?

What is meant by Resource Acquisition is Initialization (RAII)? 10 Answers 10

May 9, 2022
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Is #pragma once a safe include guard?

I’ve read that there is some compiler optimization when using #pragma once which can result in faster compilation. I recognize that is non-standard, ...

May 9, 2022
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Simple example of threading in C++

This question’s answers are a community effort. Edit existing answers to improve this post. It is not currently accepting new answers or interactions. ...

May 9, 2022
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How to detect a Christmas Tree?

Which image processing techniques could be used to implement an application that detects the Christmas trees displayed in the following images? I’m searching ...

May 9, 2022
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How to use range-based for() loop with std::map?

The common example for C++11 range-based for() loops is always something simple like this: std::vector<int> numbers = { 1, 2, 3, 4, 5, ...

May 9, 2022
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