Why do we use volatile keyword

I've never used it, but I'm curious why people do.

What precisely does it do?

When I searched the forum, I only saw C# or Java discussions.

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

No answer to this question. Be the first to respond.

Your answer

Your name to display (optional):

Email me at this address if my answer is selected or commented on:

Privacy: Your email address will only be used for sending these notifications.

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

0 votes

0 answers

Do you use Qt and why do you use it?

Cons and advantages? How long does it ...READ MORE

Jul 13, 2022 in C++ by Nicholas
• 7,760 points • 348 views

0 votes

1 answer

"We do not use C++ exceptions" — What's the alternative? Let it crash?

If you don't utilise exceptions, by definition, ...READ MORE

answered Aug 2, 2022 in C++ by Damon
• 4,960 points • 502 views

0 votes

1 answer

Why would anyone use set instead of unordered_set?

Unordered sets must compensate for their O(1) ...READ MORE

answered Jun 1, 2022 in C++ by Damon
• 4,960 points • 2,923 views

0 votes

1 answer

C++ auto keyword. Why is it magic?

Auto was a keyword that C++ "inherited" from C and had been around for a long time but was almost never used because there were only two possibilities: it wasn't allowed or it was assumed by default. C++11 introduced the usage of auto to denote an inferred type. Similarly to how template type deduction works for function templates, auto x = initializer deduces the type of x from the type of initializer. Consider the following function template: template<class T> int whatever(T t) { ...READ MORE