Extract and Modify Field in a 32-bit Register

Code

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

uint32_t update_register(uint32_t reg) {
    uint8_t check = (reg >> 10) & 0x1f;
    if (check < 31) {
        check++;
        reg &= ~(0x1f << 10);
        reg |= (check & 0x1f) << 10;
    }
    return reg;
}

int main() {
    uint32_t reg;
    scanf("%u", &reg);
    uint32_t updated = update_register(reg);
    printf("%u", updated);
    return 0;
}

Solving Approach