C++ unsigned short

#include <iostream>
#include <limits>

int main() {
    std::cout << "Size: " << sizeof(unsigned short) << " bytes\n";
    std::cout << "Min: " << std::numeric_limits<unsigned short>::min() << "\n"; // Always 0
    std::cout << "Max: " << std::numeric_limits<unsigned short>::max() << "\n"; // Typically 65535
    return 0;
}

unsigned short val1 = 42;         // Standard declaration
unsigned short int val2 = 65000;  // Equivalent, fully qualified declaration
unsigned short val3{100};         // Uniform initialization (prevents narrowing conversions)

unsigned short a = 10;
unsigned short b = 20;

// 'a' and 'b' are promoted to 'int' before addition.
// The type of (a + b) is 'int'.
auto c = a + b; 

unsigned short max_val = 65535;

// max_val + 1 evaluates to 65536 of type 'int' (no overflow).
// Assigning 65536 back to unsigned short wraps around to 0.
unsigned short overflow_val = max_val + 1; 

unsigned short min_val = 0;

// min_val - 1 evaluates to -1 of type 'int'.
// Assigning -1 back to unsigned short wraps around to 65535.
unsigned short underflow_val = min_val - 1;