Which of the following is the correct way of declaring a function as constant?
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Answer: A constant member function cannot alter any non-static data members or invoke any non-constant member functions. To declare a constant member function, insert the const keyword after the argument list's closing parentheses. Both the declaration and the definition require the const keyword.
Variables can be defined as constants by using the "const" keyword before the variable's data type. Constant variables can only be initialized once. Constant variables have a default value of zero.
In C programming, the proper way to declare a constant is:
value is a const datatype variable.
For instance, const int var = 5.
Return types include primitive types such as int, float, or double, reference types, and void types (returns nothing)
The Const statement is used to declare and set a constant. A constant is used to provide a meaningful name to a value. Once defined, a constant cannot be changed or assigned a new value. A constant is declared within a procedure or within the declarations section of a module, class, or structure.
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