Bit Reversal in an 8-bit Value

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

uint8_t reverse_bits(uint8_t val) {
    uint8_t rez=0;
    for(int i=0;i<8;i++)
    {
        rez=rez<<1u;
        rez=rez | (val & 1u);
        val=val>>1u;
    }
    return rez;
}

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

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