What is constant data type?

Question

C language

Answer 1

// As name constant it's a fixed value in program, which remains same during your program execution ,It can't be changed.

//Here are some similar threads about C constant data
https://www.sololearn.com/discuss/1750994/?ref=app
https://www.sololearn.com/discuss/827029/?ref=app

Answer 2

Well there are different kind of constants:
-Constants,
-Named Constants
there are also
-Constant Variables
What they have in common is that their values can't be changed.

Examples are the best way to explain this:

int num = 42;
// here, 42 is simply a constant

#define MAX_CHARS 100
// in this example, MAX_CHARS is named constant.

const int num = 10;
// in this example, num is constant variable.

Answer 3

Const will allow the value not to be changed by a third party

Answer 4

Think of a tuple in python. It's a data type that can't be changed.