What is exactly "volatile" for in c++?

Question

I'm wondering that why we use volatile qualifier in c++?
When we used this for some types of variables, we dont actually need to mutex that variable? Volatile helps us about it?
Can we use this in multithreading programming for some variables? Is this safe? I really need a clear explanation about "volatile qualifier"
Thanks all...

Answer 1

https://www.sololearn.com/Discuss/2041687/?ref=app
https://www.sololearn.com/Discuss/565090/?ref=app
https://www.sololearn.com/Discuss/1718899/?ref=app

Answer 2

Yunus Temurlenk check this out 👇
https://barrgroup.com/embedded-systems/how-to/c-volatile-keyword
for multithreading 👇
https://stackoverflow.com/questions/4557979/when-to-use-volatile-with-multi-threading

Answer 3

Alphin K Sajan thanks for ur reply but this answer not enough for me. Also i have different questions

Answer 4

Yunus Temurlenk Here you go :
https://is.gd/0JNyTC