programming-examples/c/Bitwise/C Program takes Byte as Input and returns all the Bits between given Positions.c

/*
 * C Program takes Byte as Input and returns all the Bits between
 * given Positions
 */
#include <stdio.h>

int number_between_bit_positions(int,int,int);
int result = 0;

int main()
{
    int number, start_pos, end_pos;
    printf("\nEnter the number");
    scanf("%d", &number);
    printf("\nEnter the position of a and b");
    scanf("%d %d", &start_pos, &end_pos);
    result = number_between_bit_positions(number, start_pos, end_pos);
    printf("Byte Equivalent of bits between %d and %d positions %d", start_pos, end_pos, result);
}

int number_between_bit_positions(int number, int start_pos, int end_pos)
{
    int i, j, shift_num, res_val;
    /*
     * Right shift to the specified start position,take the corresponding bits using &
     * Left shift to locate the bits in their respective positions
     */
    for (i = start_pos, j = 0; i <= end_pos; i++,j++)
        {
            shift_num = number >> i;
            res_val = shift_num & 1;
            res_val = res_val << j;
            result += res_val;
        }
    return result;
}