Do you use Qt and why do you use it

Cons and advantages?

How long does it last?

Jambi, what about it?

Jul 13, 2022 in C++ by Nicholas
• 7,760 points • 347 views

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When and why do I need to use cin.ignore() in C++?

In C++, I developed a simple application that requested the user to enter a number and then a string. Surprisingly, when I ran the application, it never paused to ask for the string. It simply ignored it. After conducting some research on StackOverflow, I discovered that I needed to include the following line: cin.ignore(256, '\n'); before the line with the string input That addressed the problem and allowed the software to run. My issue is why C++ need the cin.ignore() line, and how can I forecast when I will need to use it. Here's the software I created: #include <iostream> #include <string> using namespace std; int main() { ...READ MORE

Jul 4, 2022 in C++ by Nicholas
• 7,760 points • 757 views

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What is compile-time polymorphism and why does it only apply to functions?

"Compile time polymorphism" used to signify function overloading. It only applies to functions because that's all you can overload. Templates in modern C++ modify this. One example has previously been provided by Neil Butterworth. Another technique is template specialisation. As an example: #include <iostream> #include <string> template <class T> struct my_template { ...READ MORE

answered Jun 20, 2022 in C++ by Damon
• 4,960 points • 684 views

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Why do we use volatile keyword?

I've never used it, but I'm curious ...READ MORE

Jul 25, 2022 in C++ by Nicholas
• 7,760 points • 434 views

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What does Tokens do and why they need to be created in C++ programming?

Tokenization is essential in determining what a programme does. What Bjarne is referring to in respect to C++ code is how tokenization rules alter the meaning of a programme. We need to know what the tokens are and how they are determined. Specifically, how can we recognise a single token when it comes among other characters, and how should tokens be delimited if there is ambiguity? Consider the prefix operators ++ and +, for example. Assume we have just one token + to deal with. What does the following excerpt mean? int i = 1; ++i; Is the above going to apply unary + on i twice with + only? Or will it only increase it once? Naturally, it's vague. We require an additional token, thus ++ is introduced as its own "word" in the language. But there is now another (though minor) issue. What if the programmer just wants to use unary + twice without incrementing? Rules for token processing are required. So, if we discover that a white space is always used as a token separator, our programmer may write: int i ...READ MORE