Why Isn't My C Code's '^' Operator Calculating Powers Correctly?

Why is the Power Operator Not Working as Expected?

In the provided C code, an attempt is made to use the "^" operator for performing power operations. However, the output is incorrect because "^" does not serve as the power operator in C/C . Instead, it is defined as the bit-wise XOR operator.

The code intends to calculate the sum of the powers of the entered number "a" from 1 to 4. To achieve this correctly, the pow() function should be utilized, which requires casting one of its arguments to double. The modified code would be:

#include <stdio.h>

void main(void)
{
    int a;
    double result;
    int sum = 0;
    printf("Enter a number: ");
    scanf("%d", &a);
    for( int i = 1; i <= 4; i++ )
    {
        result = (int) pow((double) a,i);
        sum += result;
    }
    printf("%d\n", sum);
}

Additionally, it's worth noting that since C99, the powf() and powl() functions have been introduced to support float and long double arguments, respectively.

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