check_even_odd.cpp

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#include <cassert>   
#include <cstdint>   
#include <iostream>  
#include <string>    

namespace bit_manipulation {
namespace even_odd {

        bool is_even(std::int64_t N) {
            return (N & 1) == 0 ? true : false;
        }
 
    }  // namespace even_odd
}  // namespace bit_manipulation

static void test() {
    using bit_manipulation::even_odd::is_even;
 
    // Test Even numbers
    assert(is_even(0) == true);
    assert(is_even(2) == true);
    assert(is_even(100) == true);
    assert(is_even(-4) == true);
    assert(is_even(-1000) == true);
 
    // Test Odd numbers
    assert(is_even(1) == false);
    assert(is_even(3) == false);
    assert(is_even(101) == false);
    assert(is_even(-5) == false);
    assert(is_even(-999) == false);
 
    std::cout << "All test cases successfully passed!" << std::endl;
}

int main() {
    test();  // run self-test implementations
    return 0;
}