C++ is used in virtually every field of programming, including gaming and multimedia, financial, scientific and industrial applications, as well as low-level subsystem programming.
No.
You would have to use coding.
Wikipedia offers a great article about printf. They even provide samples of coding that is used in programs. If further assistance is needed try the website C Plus Plus.
Binary is the base for all coding in a PC.
ASCII
Coding constants in c means writing the constants in a certain way that the c language understands.
It is used to distinguish between the C or C++
That cannot be answered here; there are commercial packages to do this, which you can locate on the Internet.
Of course they are used. Both stand-alone and class-member functions are used in C++.
Programming.
void swap (int &pa, int &pb) { *pa ^= *pb; *pb ^= *pa; *pa ^= *pb; }
yes! why not! this c program is used in ATM servicesand also in games.