Bit Spreading Interleave Bits with Zeros

Code

#include <stdio.h>
#include <stdint.h>

uint16_t spread_bits(uint8_t val) {
    int i;
    int mask;
    int result = 0;

    i = 0;
    mask = 0x1;
    while(i < 8)
    {
        if(val & mask)
        {
            result = result | (mask << (i));
        }
        mask = mask << 1;
        i++;
    }

    return result;
}

int main() {
    uint8_t val;
    scanf("%hhu", &val);

    uint16_t result = spread_bits(val);
    printf("%u", result);
    return 0;
}

Solving Approach