Question

How to declare read only pointer without the option to modify the content of the pointer in C++

Answer 1

#include <iostream>

int main() {
    int a = 123;
    const int* const p = &a; 
    std::cout << *p << ' ' << a << '\n';

    //*p = 99; // error: assignment of read-only location ‘*(const int*)p’

    int b = 905;
    // p = &b; //  error: assignment of read-only variable ‘p’
}




/*
run:

123 123

*/

 

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