Variables with const

When applied to variables, the const qualifier prevents modification after initialization.

const int MAX_SIZE = 100;
MAX_SIZE = 200; // Compilation error

Function Parameters

Using const with function parameters ensures the arguemnts remain unmodified within the function scope.

void process_data(const int dataset[]) {
    dataset[0] = 42; // Compilation error
}

Function Return Values

Applying const to return values is generally not useful in most scenarios.

Pointer Const Qualifiers

The const keyword can be applied to pointers in different ways:

#include <iostream>

int main() {
    const int *pointer_to_const;
    int value = 15;
    const constant_value = 25;
    
    pointer_to_const = &value;
    std::cout <<