Why Does `==` Not Work for Array Equality Comparison in C ?

Why does array equality comparison using == not work?

In C , the equality operator (==) compares the memory addresses of arrays, rather than their contents. This behavior can lead to confusion, as it differs from the intuitive expectation of comparing array elements element-wise.

Consider the following code:

int main()
{
    int iar1[] = {1, 2, 3, 4, 5};
    int iar2[] = {1, 2, 3, 4, 5};

    if (iar1 == iar2)
        cout <p>In this code, two arrays are created with identical contents. However, the output states that the arrays are not equal. This is because the == operator compares the memory addresses of the arrays, which are different for each array.</p><p>To perform element-wise comparison of arrays, one can either use a loop or utilize the std::array class. The std::array class provides a slightly different interface for working with arrays and supports direct equality comparison.</p><p>Example using a loop:</p><pre class="brush:php;toolbar:false">bool arraysEqual(int *arr1, int *arr2, int size)
{
    for (int i = 0; i <p>Example using std::array:</p><pre class="brush:php;toolbar:false">#include <array>

int main()
{
    std::array<int> iar1 = {1, 2, 3, 4, 5};
    std::array<int> iar2 = {1, 2, 3, 4, 5};

    if (iar1 == iar2)
        cout </int></int></array>

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