Noob Question: What is the difference between C++ and C?

[n0e5cape]

Hey guys,

Title says it all, what is the difference between C++ and C?

Thanks in advance.

 

[notfred]

C++ is object oriented and C is not. That's the biggest difference. They're really entirely different languages that share the same syntax and some functions. Yes, C++ is based on C, but it's been changed so much it's not really the same thing anymore... even simple things like memory allocation and writing to stdout are done differently.

 

[n0e5cape]

How come I am seeing C used much more than C++ especially for real time applications?

 

[Nothinman]

How come I am seeing C used much more than C++ especially for real time applications?

RT applications have to be very thin. The base C++ libraries are usually larger than the C libs and some of the nice things C++ handles for you automatically that C doesn't can cause unnecessary overhead. RT developers are control freaks with good reason and C is as low as you can go without using ASM and ASM is bad because it binds you to a certain piece of hardware. Also C compilers have been around longer and are more stable, atleast with reguards to C++ and gcc.

 

[BFG10K]

Object oriented programming via classes is the main difference.

They're really entirely different languages that share the same syntax and some functions.

Actually C is more of a subset of C++. Almost everything you can do in C you can also do in C++ the same way.

How come I am seeing C used much more than C++ especially for real time applications?

Among the other reasons given here, C derivatives have been around since the 1960s which means it's firmly entrenched in the industry. C++ is pretty new in comparison and I believe it's only just been standardised quite recently.