Bit Reversal in an 8-bit Value

Code

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

uint8_t reverse_bits(uint8_t val) {
    int8_t reg = 0;
    for(int i = 0 ; i< 8 ; i++)
    {
        reg <<= 1 ;
        reg  = reg | (val & 1);
        val >>= 1;

    }
    return reg;
}

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

    uint8_t result = reverse_bits(val);
    printf("%u", result);
    return 0;
}

Solving Approach