Read-Only SensorData Reference

#include <iostream>

const int* ptr = nullptr;

typedef struct {
    int x;
    int y;
    int z;
} SensorDatatype_t;

void print_data(const SensorDatatype_t& d) {
    // d.x = 99;   // will NOT compile (read-only)

    std::cout << d.x << " " << d.y << " " << d.z << '\n';

    // Store address of original x safely
    ptr = &d.x;
}

int main() {
    SensorDatatype_t d;

    std::cin >> d.x >> d.y >> d.z;

    print_data(d);

    // Verification (optional)
    if (ptr == &d.x) {
        // success
    }

    return 0;
}

Solving Approach