Rotate Right in a 32-bit Register

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

uint32_t rotate_right(uint32_t reg, uint8_t n) {
    n = n % 32;
    uint32_t temp = (1 << (n + 1)) - 1;
    temp = temp & reg;
    reg = reg >> n;
    reg |= (temp << (32 - n));
    return reg;
}

int main() {
    uint32_t reg;
    uint8_t n;
    scanf("%u %hhu", &reg, &n);
    printf("%u", rotate_right(reg, n));
    return 0;
}