C++ Archives - Page 49 of 68

How to convert vector to array

How do I convert a std::vector<double> to a double array...

May 6, 2022
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When to use references vs. pointers

I understand the syntax and general semantics of pointers versus references, but how should I decide when it is more-or-less appropriate to use ...

May 6, 2022
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std::string to char*

I want to convert a std::string into a char* or char...

May 6, 2022
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Returning unique_ptr from functions

unique_ptr<T> does not allow copy construction, instead it supports move semantics. Yet, I can return a unique_ptr<T> from a function and assign the ...

May 6, 2022
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std::unique_lock or std::lock_guard?

I have two use cases. A. I want to synchronise access to a queue for two threads. B. I want to synchronise access ...

May 6, 2022
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Resolve build errors due to circular dependency amongst classes

I often find myself in a situation where I am facing multiple compilation/linker errors in a C++ project due to some bad design ...

May 6, 2022
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Differences between C++ string == and compare()?

I just read some recommendations on using std::string s = get_string(); std::string t = another_string(); if( !s.compare(t) ) { instead of if( s ...

May 6, 2022
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What is the difference between using a Makefile and CMake to compile the code?

I code in C/C++ and use a (GNU) Makefile to compile the code. I can do the same with CMake and get a ...

May 6, 2022
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In C++, what is a virtual base class?

I want to know what a “virtual base class” is and what it means. Let me show an example: class Foo { public: ...

May 5, 2022
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Struct Constructor in C++?

Can a struct have a constructor in C++? I have been trying to solve this problem but I am not getting the syntax. ...

May 5, 2022
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