Reference Alias Update

Question

Problem: Reference Alias Update. Solve this hands-on electronics task on EWskills.

Accepted Answer

#include 
#include 

int main() {
    int32_t a, b;
    std::cin >> a >> b;

    int32_t& ref = a;   // Create reference alias to a
    ref += b;           // Modify a only through the reference

    std::cout << a;
    return 0;
}

Explanation & Logic Summary:

int32_t& ref = a; binds ref as an alias to a
A reference does not allocate separate storage
Any modification through ref directly updates a
Adding b via the reference updates the final value of a

Firmware Relevance & Real-World Context:

Fixed-width types ensure predictable behavior across architectures
References eliminate null-pointer risk
Common in configuration structures and driver APIs
Zero runtime overhead — resolved entirely at compile time

3. Reference Alias Update